{"title":"BMS \u0026 Battery Controls","description":null,"products":[{"product_id":"12v-lifepo4-smart-bms-w-low-temp-cutoff","title":"Li-ion\/Lifepo4 3s-21s 100a BMS W\/ LOW TEMP CUTOFF","description":"\u003cdiv style=\"text-align: center;\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cp style=\"text-align: center;\"\u003e--------------------\u003cbr\u003eHere are 100a BMS units. We carry 3s-21s and both Lithium Ion (Li-Ion) and Lithium Iron Phosphate (Lifepo4). The lithium ion version also works with Lithium Polymer (Li-Po) since they both have the same parameters. (WIRING DIAGRAM BELOW!)\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSome of the BMSs arrived without the main leads soldered on but will include the balance leads!  A lot of our customers would prefer that as it allows them to solder their own wires on.\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eNote: We have a BMS that works for 7-17s Lifepo4 batteries. Wiring diagram shown in the 4th to last photo.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eWe also have a BMS that works for 6-21s lithium ion and the wiring diagrams are shown in the last 3 photos. When you see short that means all the \"short\" labeled balance wires get connected to the same battery positive like the 7s wiring example in the last image.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e---------------------\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eProtect your battery investment with this reliable BMS that will disengage charging your batteries in freezing weather and avoid damage to your batteries. \u003cspan data-mce-fragment=\"1\"\u003eIt is very important for batteries to have a low temp cutoff because you can destroy your batteries by charging them in freezing temperatures. It was hard for us to find a BMS with all the features people want so we had to get one modified. This is actually a medical grade BMS trusted by manufacturers that make batteries intended for medical and military applications. This BMS is built solid and comes with 2 10 gauge positive and 2 10 gauge negative silicone wires. The overall construction is built to last.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eBluetooth is optional. You can purchase the bluetooth attachment \u003ca href=\"https:\/\/batteryhookup.com\/collections\/accessories\/products\/bluetooth-module-for-battery-hookup-bms\"\u003eHERE\u003c\/a\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e--------------------\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eThe bluetooth apps can be downloaded from the Google Play Store for android or in the Apple store. There are a few options there but most of our customers use the app with the little elephant logo on it.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e--------------------\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eWe ship every day from our family owned and operated warehouse in Pennsylvania. No more waiting months for shipments overseas.\u003cbr\u003e--------------------\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eWe do not offer technical support for the BMS\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e--------------------\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e*DIMENSIONS - (3S-16S)\u003c\/strong\u003e\u003cstrong\u003e - 5.5\" X 4\" X 5\/8\"\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003e*DIMENSIONS OF 20S ONLY - 7.5\" X 4\" X 5\/8\"\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eLithium ion and polymer settings\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eOvercharge voltage per cell: 4.2\u003cbr\u003eOverdischarge voltage per cell: 2.8\u003cbr\u003eDischarge Continuous Amps: 100\u003cbr\u003e10 second Discharge Burst: 200a\u003cbr\u003eCharge Continuous Amps: 60a\u003cbr\u003eBalancing Current: 60mA\u003cbr\u003eLow temp cutoff: 32° F (0° C)\u003cbr\u003e\u003cspan data-mce-fragment=\"1\"\u003eHigh temp cutoff: 167° F (75° C)\u003c\/span\u003e\u003cbr\u003e--------------------\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003eLithium Iron Phosphate (Lifepo4) settings\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eOvercharge voltage per cell: 3.65\u003cbr\u003eOverdischarge voltage per cell: 2.5\u003cbr\u003eDischarge Continuous Amps: 100\u003cbr\u003e10 second Discharge Burst: 200a\u003cbr\u003eCharge Continuous Amps: 60a\u003cbr\u003eBalancing Current: 60mA\u003cbr\u003e\u003cspan data-mce-fragment=\"1\"\u003eLow temp cutoff: 32° F (0° C)\u003cbr\u003eHigh temp cutoff: 167° F (75° C)\u003c\/span\u003e\u003cbr\u003e----------------------\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/files\/Screen_Shot_2021-08-18_at_2.10.40_PM_480x480.png?v=1629310323\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Battery Hookup","offers":[{"title":"4s LifePo4 - Smart BMS","offer_id":36287974604962,"sku":"","price":39.99,"currency_code":"USD","in_stock":false},{"title":"7-17s Lifepo4 + Can + 485 + UART com","offer_id":44575744032930,"sku":"7-17s Lifepo4 BMS w\/coms","price":65.0,"currency_code":"USD","in_stock":true},{"title":"3s Li-ion","offer_id":36287974801570,"sku":"","price":74.99,"currency_code":"USD","in_stock":true},{"title":"4s Li-ion","offer_id":36287974899874,"sku":"","price":74.99,"currency_code":"USD","in_stock":true},{"title":"6-21s Li-ion UART","offer_id":36287975522466,"sku":"6s-21s 100a lithium ion","price":74.99,"currency_code":"USD","in_stock":true},{"title":"7s Li-ion","offer_id":37388971049122,"sku":"D1","price":74.99,"currency_code":"USD","in_stock":true},{"title":"8s Li-ion- Smart BMS","offer_id":45743892136098,"sku":null,"price":59.99,"currency_code":"USD","in_stock":true},{"title":"9s Li-ion","offer_id":36287975194786,"sku":"D1","price":74.99,"currency_code":"USD","in_stock":true},{"title":"10s Li-ion (Bluetooth Module Included)","offer_id":36287975260322,"sku":"","price":74.99,"currency_code":"USD","in_stock":true},{"title":"12s Li-ion","offer_id":36287975391394,"sku":"","price":74.99,"currency_code":"USD","in_stock":true},{"title":"15s Li-ion","offer_id":36287975588002,"sku":"","price":74.99,"currency_code":"USD","in_stock":true},{"title":"21s Li-ion","offer_id":36287975653538,"sku":"E1","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/products\/bms_e99ea999-1e01-4642-808f-f9192c46bb8e.png?v=1609263003"},{"product_id":"bluetooth-module-for-battery-hookup-bms","title":"Bluetooth Module for Smart BMS","description":"\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eNote: These are only compatible with our 100amp \u0026amp; 200amp Smart BMS. The 300a Smart BMS already has this installed. They will not work with the 30amp standard BMS.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eUse the Xiaoxiang App to integrate to our BMS units via bluetooth. There are some connection issues mainly with certain Android phones which we are hoping to clear up in the future.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eYou do not need the bluetooth device to get the BMS units to work. They are already optimized and programmed for low temperature disconnect with the above parameters already set. \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eWith this bluetooth device the apps work on some phones and not on others. It seems to work best on Iphones but not so much on android. It is sort of hit or miss right now. The BMS needs to be powered up to activate the bluetooth module. The issue we have with android is some phone bluetooth settings block the app. If you are good with phones I'm sure you can figure it out. \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eYou can adjust all the parameters, over charge, over discharge, low temp cutoff, etc directly from your smart phone. We can't give technical support for the bluetooth device. This plugs right into the Smart 100a BMS units that we sell. \u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e--------------------------\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eApple App:\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003ca href=\"https:\/\/apps.apple.com\/us\/app\/xiaoxiang-bms\/id1375405426\" title=\"click here\" data-mce-fragment=\"1\"\u003eclick here\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e-------------------------\u003cbr data-mce-fragment=\"1\"\u003eAndroid phone app download link below\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/files\/xiaoxiang-protection-enterprise.apk?v=1593310645\" title=\"Click Here\" data-mce-fragment=\"1\"\u003eclick here\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e--------------------------\u003c\/div\u003e","brand":"Battery Hookup","offers":[{"title":"Default Title","offer_id":36330039705762,"sku":"Office Floor next to Geri's Desk","price":7.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/products\/bluetooth.png?v=1600885265"},{"product_id":"lem-hass-200-s-hall-effect-current-sensor-200a","title":"LEM HASS 200-S Hall Effect Current Sensor 200a with Wiring Harness","description":"\u003cp\u003eJust $2.\u003c\/p\u003e\n\u003cp\u003eHere are top quality 200a hall effect current sensors that we recovered from industrial grade battery packs. If you look around these are very expensive elsewhere online and we have them here for much less. These are guaranteed to work. Please refer to the data sheets in the 2nd, 3rd, and 4th photo for technical advice. We don't know anything more about the sensors other than they were removed from fully functioning battery packs. The wiring hardness is included and it is a 4 wire harness.\u003cbr\u003e\u003c\/p\u003e","brand":"Battery Hookup","offers":[{"title":"Default Title","offer_id":39747007774882,"sku":"Elon B","price":2.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/products\/hass.jpg?v=1619098862"},{"product_id":"li-ion-lifepo4-3s-20s-30a-bms-with-balance","title":"Li-ion\/Lifepo4 3s-20s 30a BMS WITH BALANCE","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp style=\"text-align: center;\"\u003eNote: These are not compatible with our bluetooth modules or computer interfaces.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e--------------------\u003cbr\u003eHere are 30a BMS units with 50ma balance function. We carry 3s-20s and both Lithium Ion (Li-Ion) and Lithium Iron Phosphate (Lifepo4). The lithium ion version also works with Lithium Polymer (Li-Po) since they both have the same parameters. (WIRING DIAGRAM BELOW!)\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eMost of the BMS units are without the main lead wires. Of course balance leads are all included. A lot of our customers prefer that as it allows them to solder their own battery wires onto the BMS because it is easier to solder wires to the PCB than it is to solder a wire to another wire.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e---------------------\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eProtect your battery investment with these reliable Xiaoxiang BMS units.\u003cspan data-mce-fragment=\"1\"\u003e This is actually a medical grade BMS trusted by manufacturers that make batteries intended for medical and military applications. This BMS is built solid. The overall construction is built to last. Xiaoxiang is one of the most trusted brands of BMS units.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e--------------------\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eWe ship every day from our family owned and operated warehouse in Pennsylvania. No more waiting months for shipments overseas.\u003cbr\u003e--------------------\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eWe do not offer technical support for the BMS. Anyone can learn how to wire a BMS and there are many videos on Youtube and wiring diagrams showing how easy it is.\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eThese particular BMS units are even easier because they are common port BMS units. Meaning you can charge and discharge through the same wire. B- always go to battery main negative. C- then becomes your new main negative that will connect for charge and discharge. Your main positive doesn't go through the BMS. Look at a BMS like a smart in-line fuse on the negative of the battery. Balance leads start with the black wire on the negative and then each wire in order goes to series 1 positive, series 2 positive, series 3 positive, etc. That is why the balance leads always have 1 extra wire than there are numbers of series. A 4s BMS, for example, will have 5 balance wires. One for the main negative and 4 for the positive of each series.\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e--------------------\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eLithium ion and polymer settings\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eOvercharge voltage per cell: 4.2\u003cbr\u003eOverdischarge voltage per cell: 2.8\u003cbr\u003eDischarge Continuous Amps: 30\u003cbr\u003e10 second Discharge Burst: 60a\u003cbr\u003eCharge Continuous Amps: 30a\u003cbr\u003eBalancing Current: 50mA\u003cbr\u003e--------------------\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003eLithium Iron Phosphate (Lifepo4) settings\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eOvercharge voltage per cell: 3.65\u003cbr\u003eOverdischarge voltage per cell: 2.5\u003cbr\u003eDischarge Continuous Amps: 30\u003cbr\u003e10 second Discharge Burst: 60a\u003cbr\u003eCharge Continuous Amps: 30a\u003cbr\u003eBalancing Current: 50mA\u003cbr\u003e----------------------\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/files\/Screen_Shot_2021-08-18_at_2.10.40_PM_480x480.png?v=1629310323\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eParameters of each BMS\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eLifepo4\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e4s Charge 14.6v, Discharge 10v, Nominal 12.8v\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e8s \u003cspan data-mce-fragment=\"1\"\u003eCharge 29.2v, Discharge 20v, Nominal 25.6v\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e12s \u003cspan data-mce-fragment=\"1\"\u003eCharge 43.8v, Discharge 30v, Nominal 38.4\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e16s \u003cspan data-mce-fragment=\"1\"\u003eCharge 58.4v, Discharge 40v, Nominal 51.2v\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eLithium Ion\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e3s Charge 12.6v, Discharge 8.4v, Nominal 10.8v\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e4s Charge 16.8v, Discharge 11.2v, Nominal 14.4v\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e5s Charge 21v, Discharge 14v, Nominal 18v\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e7s Charge 29.4v, Discharge 19.6v, Nominal 25.2v\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e8s Charge 33.6v, Discharge 22.4v, Nominal 28.8v\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e10s Charge 42v, Discharge 28v, Nominal 36v\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e12s Charge 50.4v, Discharge 33.6v, Nominal 43.2v\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e13s Charge 54.6v, Discharge 36.4v, Nominal 46.8v\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e14s Charge 58.8v, Discharge 39.2v, Nominal 50.4v\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e15s Charge 63v, Discharge 42v, Nominal 54v\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e20s Charge 84v, Discharge 56v, Nominal 72v\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Battery Hookup","offers":[{"title":"4s LifePo4","offer_id":42283333550242,"sku":"4s-30a-Lifepo4","price":15.0,"currency_code":"USD","in_stock":true},{"title":"8s LifePo4","offer_id":42283333583010,"sku":"8s-30a-Lifepo4","price":18.0,"currency_code":"USD","in_stock":true},{"title":"12s LifePo4","offer_id":42283333615778,"sku":"12s-30a-Lifepo4","price":24.0,"currency_code":"USD","in_stock":false},{"title":"16s Lifepo4","offer_id":42283333648546,"sku":"16s-30a-Lifepo4","price":25.0,"currency_code":"USD","in_stock":false},{"title":"3s Li-ion","offer_id":42283333681314,"sku":"3s-30a-LithiumIon","price":10.0,"currency_code":"USD","in_stock":false},{"title":"4s Li-Ion","offer_id":42283333714082,"sku":"4s-30a-LithiumIon","price":16.0,"currency_code":"USD","in_stock":false},{"title":"5s Li-ion","offer_id":42283333746850,"sku":"5s-30a-LithiumIon","price":17.0,"currency_code":"USD","in_stock":true},{"title":"7s Li-ion","offer_id":42283333779618,"sku":"7s-30a-LithiumIon","price":20.0,"currency_code":"USD","in_stock":true},{"title":"8s Li-ion","offer_id":42283333812386,"sku":"8s-30a-LithiumIon","price":18.0,"currency_code":"USD","in_stock":true},{"title":"10s Li-ion","offer_id":42283333845154,"sku":"10s-30a-LithiumIon","price":22.0,"currency_code":"USD","in_stock":false},{"title":"12s Li-ion","offer_id":42283333910690,"sku":"12s-30a-LithiumIon","price":21.0,"currency_code":"USD","in_stock":true},{"title":"13s Li-ion","offer_id":42283333943458,"sku":"13s-30a-LithiumIon","price":25.0,"currency_code":"USD","in_stock":true},{"title":"14s Li-ion","offer_id":42283333976226,"sku":"14s-30a-LithiumIon","price":25.0,"currency_code":"USD","in_stock":true},{"title":"15s Li-ion","offer_id":42283334008994,"sku":"15s-30a-LithiumIon","price":26.0,"currency_code":"USD","in_stock":true},{"title":"20s Li-ion","offer_id":42283334041762,"sku":"20s-30a-LithiumIon","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/products\/IMG_9171_2__clipped_rev_2.png?v=1655490786"},{"product_id":"4s-300a-lifepo4-bms-with-balance-12-8v","title":"4s 300a Lithium Ion \/ Lifepo4 BMS Non-Smart with Balance","description":"\u003cp dir=\"auto\"\u003e⚠️ IMPORTANT: Please select your chemistry in the dropdown menu above! We offer two versions of this 4S 300A BMS: • LiFePO4 (default – 14.6V charge \/ 10V discharge) • Lithium Ion (16.8V charge \/ 11.2V discharge) Choosing the wrong chemistry may damage your cells. Double-check before adding to cart!\u003c\/p\u003e\n\u003cp\u003eThese BMS units are perfect for 4s Lithium Ion or Lifepo4 applications that require a lot of amps like RV and car audio. These BMS units can handle 300 amps continuous discharge and 200 amps continuous charge. The brand is Xiaoxiang which is a trusted BMS manufacturer in the medical industry. You can also discharge up to 900 amps for up to 5 seconds.\u003c\/p\u003e\n\u003cp\u003eThey have a balance function as well so these will top balance when near full charge.\u003c\/p\u003e\n\u003cp\u003eLithium Ion version full charge 16.8v (4.2v per cell) \/ full discharge 11.2v (2.8v per cell)\u003cbr\u003eLifepo4 version full charge 14.6v (3.65v per cell) \/ full discharge 10v (2.5v per cell)\u003c\/p\u003e\n\u003cp\u003eIf you are building a car audio 4s lithium ion or lifepo4 battery this is a great option for you to add some protection. One of these BMS units for every 3000 watts of power. Great for all other applications as well like solar storage.\u003c\/p\u003e\n\u003cp\u003eThe B- and C- main connector has an M8 threaded post so you can make your connection with ring terminals and M8 bolts. We include the 2 bolts for you.\u003c\/p\u003e\n\u003cp\u003eThis is a common port BMS which means you can charge and discharge through the same connections. Common port BMS is the most popular and widely used BMS type. Separate port BMS units are usually for Ebikes and lower amp packs.\u003c\/p\u003e","brand":"Battery Hookup","offers":[{"title":"Lifepo4 Version","offer_id":43601831362722,"sku":"Lifepo4 - Not Lithium Ion - 2 BOLTS","price":59.99,"currency_code":"USD","in_stock":false},{"title":"Lithium Ion Version","offer_id":43601831329954,"sku":"Lithium Ion - Not Lifepo4. 2 BOLTS","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/products\/imageedit_33_7336175435.png?v=1658268340"},{"product_id":"4s-8s-12s-16s-100a-lifepo4-non-smart-bms-12-24-36-48v","title":"4s 8s 12s 16s 100a Lifepo4 Non-Smart BMS 12\/24\/36\/48v","description":"\u003cp\u003eThese BMS units are affordable and reliable. They don't have communications built in but they function to protect your batteries from over\/under charge, over current, temperature, and has passive balancing.\u003c\/p\u003e\n\u003cp\u003eBalance leads are included. Of course the first small black wire goes to the packs main negative along with with the main B- wire. Then cell #1 positive gets the next white lead wire, cell #2 get the next white lead wire, etc. Until you get to the last cell positive which would be the pack's main positive and that will get the last balance lead wire which is red. B- always goes to battery negative and C- becomes your new main negative which you will use as your negative for charge and discharge. A BMS is sort of like a smart in-line fuse on the negative connection to your battery. When the BMS detects an issue it cuts off the circuit from C- to B-.\u003c\/p\u003e\n\u003cp\u003eIf you want a BMS that communicates with bluetooth we have them as well but these work and are the least expensive option to protect your batteries without paying all the extra communication which is not required in many installs.\u003c\/p\u003e","brand":"Battery Hookup","offers":[{"title":"4s Lifepo4 Non-Smart","offer_id":45861783601314,"sku":"4s lifepo4 100a non-smart","price":25.0,"currency_code":"USD","in_stock":false},{"title":"8s Lifepo4 Non-Smart","offer_id":45861783634082,"sku":"8s lifepo4 100a non-smart","price":30.0,"currency_code":"USD","in_stock":false},{"title":"12s Lifepo4 Non-Smart","offer_id":45861783666850,"sku":"12s lifepo4 100a non-smart","price":40.0,"currency_code":"USD","in_stock":true},{"title":"16s Lifepo4 Non-Smart","offer_id":45861783699618,"sku":"16s lifepo4 100a non-smart","price":40.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/files\/IMG_1240_clipped_rev_1.png?v=1759257218"},{"product_id":"21s-80a-76-8v-lifepo4-bms","title":"Recovered 21s 80a 76.8v Lifepo4 BMS","description":"\u003cp dir=\"auto\"\u003eThese BMS units were recovered in fully working condition from decommissioned battery packs. Balance leads and temperature sensors remain intact and connected – ready for immediate reuse or testing. Clean, functional, and pulled from operational batteries.\u003c\/p\u003e","brand":"Battery Hookup","offers":[{"title":"Default Title","offer_id":46375520665762,"sku":"Says 76.8v 80a","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/files\/76.81.jpg?v=1764860988"},{"product_id":"used-high-voltage-battery-stack-control-enclosure","title":"Used high-voltage battery stack control enclosure","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eWhat it actually is\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe two silver modules inside are:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMS Stack Controller\u003c\/strong\u003e — the brains. It talks to cell interface modules, calculates SOC\/SOH, handles faults, and talks to the outside world.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMS Power Interface\u003c\/strong\u003e — handles high-current contactors, current shunt measurement, stack voltage, and auxiliary power distribution.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eTogether they form a single-stack high-voltage BMS (G4 generation, typically rated up to 1250 V DC). The rest of the box is the power hardware that the BMS controls.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eFront-panel connections\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eB+ \/ B–\u003c\/strong\u003e — Battery stack positive and negative.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP+ \/ P–\u003c\/strong\u003e — DC bus \/ pack output side (after the contactors).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOM\u003c\/strong\u003e (three circular connectors) — Custom-wired communication and control ports. The handwritten labels (“OUT 1”, “HMI 2”, “#3 33A”) are integrator markings. These usually carry a mix of:\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eEthernet \/ Modbus TCP\u003c\/li\u003e\n\u003cli\u003eRS-485 \/ Modbus RTU\u003c\/li\u003e\n\u003cli\u003eCAN\u003c\/li\u003e\n\u003cli\u003eGPIO \/ interlock \/ HMI signals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003eWhat’s inside (from the photos)\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eGigavac high-voltage DC contactors (main + pre-charge)\u003c\/li\u003e\n\u003cli\u003eHigh-current fuse (looks like a 350 A class fuse)\u003c\/li\u003e\n\u003cli\u003eCurrent shunt\u003c\/li\u003e\n\u003cli\u003eIsolated TOBSUN DC-DC converters (auxiliary 24 V power for the BMS and contactors)\u003c\/li\u003e\n\u003cli\u003eWiring for Link Bus (goes out to separate Cell Interface modules that sit on the actual battery modules)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eThe Cell Interface boards themselves are \u003cstrong\u003enot\u003c\/strong\u003e in this box — they live on the battery modules and daisy-chain back to the Stack Controller via the Link Bus.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eCommunications capabilities\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThe Stack Controller supports:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eModbus TCP\u003c\/strong\u003e over Ethernet (primary interface + web-based Operator Interface)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModbus RTU\u003c\/strong\u003e over isolated RS-485\u003c\/li\u003e\n\u003cli\u003eIsolated \u003cstrong\u003eCAN 2.0\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eUSB (configuration \/ firmware)\u003c\/li\u003e\n\u003cli\u003eConfigurable GPIO\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eThis is the same comms stack used in commercial utility-scale and C\u0026amp;I energy storage systems. It speaks SunSpec \/ MESA models so inverters and site controllers can talk to it directly.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eTypical use\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThis style of enclosure is common in:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eUsed \/ surplus commercial battery energy storage systems (BESS)\u003c\/li\u003e\n\u003cli\u003eCustom high-voltage Li-ion or LiFePO4 stacks\u003c\/li\u003e\n\u003cli\u003eSecond-life EV battery packs that were converted into stationary storage\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Battery Hookup","offers":[{"title":"Default Title","offer_id":47596015485090,"sku":"High Voltage Battery Stack Control","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/files\/0_3b1a9b49-ea56-4a0a-9586-c492ee2d1646.jpg?v=1788556992"},{"product_id":"used-battery-management-system-bms-all-in-one-unit","title":"Used Battery Management System (BMS) all-in-one unit.","description":"\u003ch3 dir=\"auto\"\u003eWhat the unit actually is\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThis is a rack-mountable (19\" style) assembled BMS cabinet for a \u003cstrong\u003e24-series (24S)\u003c\/strong\u003e lithium battery pack. For LiFePO4 that would be roughly 76.8 V nominal.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eVisible internals:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMain BMS controller box\u003c\/li\u003e\n\u003cli\u003eHeavy-gauge red\/black power cables\u003c\/li\u003e\n\u003cli\u003eContactors\/relays for charge\/discharge disconnect\u003c\/li\u003e\n\u003cli\u003eCurrent shunt (green labeled component)\u003c\/li\u003e\n\u003cli\u003eAuxiliary switching power supply\u003c\/li\u003e\n\u003cli\u003eLarge bundle of thin balance\/voltage sensing wires\u003c\/li\u003e\n\u003cli\u003ePhoenix-style green terminal blocks (J1–J4)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003eTypical functions\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003ePer-cell and pack voltage monitoring\u003c\/li\u003e\n\u003cli\u003eOver-voltage \/ under-voltage protection\u003c\/li\u003e\n\u003cli\u003eOver-current and short-circuit protection\u003c\/li\u003e\n\u003cli\u003eTemperature monitoring\u003c\/li\u003e\n\u003cli\u003eCell balancing\u003c\/li\u003e\n\u003cli\u003eCurrent measurement (via shunt)\u003c\/li\u003e\n\u003cli\u003eSOC estimation\u003c\/li\u003e\n\u003cli\u003eCommunication (the J1–J4 connectors are almost certainly RS485, CAN, dry contacts, or temperature sensor inputs)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eThe green J1–J4 connectors on the front panel are industrial I\/O terminals, not primary communications ports in the networking sense. They are typical for connecting to an inverter, display, or monitoring software.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThis style of unit is commonly used in:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eTelecom base station backup batteries\u003c\/li\u003e\n\u003cli\u003eEnergy storage systems (ESS)\u003c\/li\u003e\n\u003cli\u003eIndustrial rack-mounted battery cabinets\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Battery Hookup","offers":[{"title":"Default Title","offer_id":47596063916194,"sku":"Used BMS all-in-one unit.","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/files\/0_5f64c2ba-6e05-4906-8805-715212da0de4.jpg?v=1787923157"},{"product_id":"used-battery-management-system-bms-all-in-one-unit-copy","title":"Used High Voltage Battery Control Unit 200A CAN\/RS485","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eUsed high-voltage battery control and disconnect unit with internal DC contactors, busbars and a 12V auxiliary power supply for the control electronics.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eThis is not a battery pack. No battery cells or modules are included.\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The ±256V, 105Ah and 53,760Wh markings refer to the original battery system this unit was designed for, not battery storage included with this listing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eOriginal system label:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBattery voltage: ±256V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMaximum charge\/discharge current: 200A\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOperating temperature: 0–45°C\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eConnections and controls:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBattery terminals: B+ \/ N \/ B−\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLoad terminals: P+ \/ N \/ P−\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGreen START and red STOP buttons\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBuilt-in DC circuit breaker\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePorts labeled RS485 and CAN, plus an RJ45 connection\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUsed unit. Inspect photos for condition. Wiring, communication protocols and compatibility must be verified before use. Additional battery monitoring components may be required. High-voltage equipment — qualified installation only.\u003c\/span\u003e\u003c\/p\u003e","brand":"Battery Hookup","offers":[{"title":"Default Title","offer_id":47596401229986,"sku":"256v 105ah 54kwh","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/files\/0_0bc96a54-ac50-4d03-b730-78b815690572.jpg?v=1788557146"}],"url":"https:\/\/batteryhookup.com\/collections\/bms-battery-controls.oembed","provider":"Battery Hookup","version":"1.0","type":"link"}