{"title":"LABOR DAY SALE 2026!","description":null,"products":[{"product_id":"ring-battery-2x-panasonic-lg-3000mah-18650","title":"Battery with 2x 2900-3250mah 18650 Cells","description":"\u003cp\u003eMost of these packs have never been cycled, some came new in the original pallet and some were recovered from overstock or returned doorbell camera units.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eYou will get 2x 18650 quality brand cells ranging from 2900-3250mah in each pack. We have tested thousands of these and the cells have all tested near full capacity so they likely were never used or only used a few times. The packs are pretty easy to crack open too with the right pair of cutters. Of course you will want to open these carefully and at your own risk to get the 18650 cells out of them for reuse. Some glue inside but not overwhelming. In the end you can get some of the best cells on the market out of these packs for a fraction of the price of new cells.\u003c\/p\u003e","brand":"Battery Hookup","offers":[{"title":"Default Title","offer_id":36540024946850,"sku":null,"price":1.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/files\/imageedit_2_2981877422.png?v=1751393537"},{"product_id":"parts-repair-power-sonic-psl-24200-25-6v-22ah-24v","title":"Used 25.6V 22ah 563wh LiFePO4 Battery with BMS","description":"\u003cp dir=\"auto\"\u003eSpecifications\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e• Chemistry: LiFePO4\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e• Nominal Voltage: 25.6V\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e• Amp Hours: 22Ah\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e• Capacity: 563Wh\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThis is a complete plug-and-play battery pack built with high-quality cylindrical LiFePO4 cells and includes a fully working BMS. The pack is balanced, tested, and shows good voltage throughout. Ready for immediate use in your project.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eWe ship every day from our Bensalem, PA warehouse. Local pickup Monday thru Friday 8am-4pm.\u003c\/p\u003e\n\u003cp\u003eBolts are included.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDimensions can be seen in the third image.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFully charged would be 28.8v. Fully discharged 20v. Perfect for 24v applications.\u003c\/p\u003e","brand":"Battery Hookup","offers":[{"title":"Default Title","offer_id":42273377124514,"sku":"24v Pallet","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/products\/imageedit_138_2636940444.png?v=1655244499"},{"product_id":"52x-3-2v-280ah-lifepo4-prismatic-cells","title":"52x 3.2v 280ah Lifepo4 Cells - 166v 280ah 46.48kWh - $15\/kWh - Swollen","description":"\u003cp\u003eThese modules are balanced and have good voltage, but the cells are a little swollen as shown in photo 3 and priced accordingly. We recommend not cutting the compression straps.\u003c\/p\u003e\n\u003cp\u003eThese must ship freight. We have excellent freight rates which includes lift gate and residential service if needed. Of course, you can always do a local pickup for free from our Bensalem, PA location or schedule your own freight. For your convenience we have a freight calculator at the bottom of this listing so you can check shipping rates right on this page.\u003c\/p\u003e\n\u003cp\u003eThere are 4 rows of cells. Each row has 13 cells in series. Each of the 4 rows of 13 cells are in series. Total of 52 cells in series. Each cell is CATL 3.2v 280ah lifepo4 prismatic.\u003c\/p\u003e\n\u003cp\u003eYou will need to add your own BMS. You have full and easy access to the balance lead wires for each cell. The lid of this module comes off easily by removing the bolts around the sides.\u003c\/p\u003e\n\u003cp\u003eYou can cut the busbars at your own risk with a Dremel and cutting wheel. If you look at the 2nd photo, zoom in to the series busbars between the cells. You will see it is wavy and there is a good 2\" of busbar length between the cells. What a lot of customers are doing with these types of modules is, let's say they want a 16s 48v battery, after every 16th cell in series they will cut the busbar carefully down the middle. This leaves about 1\" of busbar on each side. You can then use a plastic tool and press on the laser weld of the cell while bending that busbar upwards. You want to keep pressure on the cell's laser weld while bending to prevent breaking the laser weld connection on the cell while doing it. The busbars are aluminum and will bend with a little force. Once it is bent upwards you now have easy access to drill a hole in the tab then use nuts and bolts to make your connections with a ring terminal or busbar.\u003c\/p\u003e\n\u003cp\u003eDimensions: 45\" x 32\" x 12\"\u003cbr\u003eWeight: 700 lbs\u003c\/p\u003e","brand":"Battery Hookup","offers":[{"title":"Default Title","offer_id":44256752828578,"sku":"Big black modules","price":700.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/files\/IMG_3393_clipped_rev_1.png?v=1711560241"},{"product_id":"3-2v-15ah-48wh-lifepo4-cylindrical-cells-no-shrink-wrap","title":"3.2v 15ah 48wh LiFePo4 Cylindrical Cells - No Shrink Wrap","description":"\u003cp\u003eThese cells have never been used, have good voltage, and the cells we tested were full capacity.\u003c\/p\u003e\n\u003cp\u003eThey are just missing the shrink wrap. You can add your own shrink wrap or use electrical tape. Perhaps if you use cell holders with spacing you won't need to add shrink wrap. You cannot have cells in series touching without something protecting against a short so if you don't use spacers between the cells you must use shrink wrap or some material to prevent a short.\u003c\/p\u003e\n\u003cp\u003eThe tabs on both ends are copper which is nice because a lot of customers are building packs by soldering them. Using a thicker soldering iron works well and you can even utilize nickel for the connections.\u003c\/p\u003e\n\u003cp\u003eFully Charged: 3.65v\u003cbr\u003eFully Discharged: 2v\u003cbr\u003eStandard Charge Rate: 7.5a (0.5C)\u003cbr\u003eStandard Discharge Rate: 15a (1C)\u003cbr\u003eMax Continuous Charge Rate: 30a (2C)\u003cbr\u003eMax Continuous Discharge Rate: 75a (5C)\u003cbr\u003eDimensions: 5.25\" x 1.25\" (140mm x 33mm)\u003c\/p\u003e","brand":"Battery Hookup","offers":[{"title":"Default Title","offer_id":45524146225314,"sku":"No Shrink Wrap","price":2.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/files\/IMG_0338_clipped_rev_1.png?v=1747850659"},{"product_id":"3-2v-15ah-48wh-lifepo4-cylindrical-cells-new","title":"3.2v 15ah 48wh LiFePo4 Cylindrical Cells - New","description":"\u003cp\u003eThese cells have never been used, have good voltage, and the cells we tested were full capacity. Amazing deal at this price.\u003c\/p\u003e\n\u003cp\u003eNote: cells may have a tiny ding mark on the shrink wrap\u003c\/p\u003e\n\u003cp\u003eThe tabs on both ends are copper which is nice because a lot of customers are building packs by soldering them. Using a thicker soldering iron works well and you can even utilize nickel for the connections.\u003c\/p\u003e\n\u003cp\u003eFully Charged: 3.65v\u003cbr\u003eFully Discharged: 2v\u003cbr\u003eStandard Charge Rate: 7.5a (0.5C)\u003cbr\u003eStandard Discharge Rate: 15a (1C)\u003cbr\u003eMax Continuous Charge Rate: 30a (2C)\u003cbr\u003eMax Continuous Discharge Rate: 75a (5C)\u003cbr\u003eDimensions: 5.25\" x 1.25\" (140mm x 33mm)\u003c\/p\u003e","brand":"Battery Hookup","offers":[{"title":"Default Title","offer_id":45577396519074,"sku":"new cells","price":2.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/files\/IMG_0305_clipped_rev_1.png?v=1747334269"},{"product_id":"new-aluminum-cell-phone-charger-power-bank-3000mah-with-cable","title":"New Aluminum Cell Phone Charger Power Bank 3000mah with Cable","description":"\u003cp\u003eThese were all overstock and never used. Still in the original cases and packaging. We tested 10 of them and after charging they all worked perfectly.\u003c\/p\u003e\n\u003cp\u003eUSB charging cable is included.\u003c\/p\u003e\n\u003cp\u003eAt this price it makes sense to add a few to your cart. It's always nice to have extra backup power for your phone.\u003c\/p\u003e","brand":"Battery Hookup","offers":[{"title":"Black","offer_id":45670701465762,"sku":"Black","price":2.0,"currency_code":"USD","in_stock":true},{"title":"Silver","offer_id":45670701498530,"sku":"Silver","price":2.0,"currency_code":"USD","in_stock":true},{"title":"Blue","offer_id":45670701531298,"sku":"Blue","price":2.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/files\/IMG_0579_clipped_rev_1_1.png?v=1752175722"},{"product_id":"overstock-12-8v-10ah-128wh-lifepo4-battery","title":"Overstock 12.8V 10Ah 128Wh LiFePO4 Battery W\/ BMS","description":"\u003cp dir=\"auto\"\u003e\u003cstrong\u003eSpecifications \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003e• Chemistry: LiFePO4 \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003e• Nominal Voltage: 12.8V\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003e • Amp Hours: 10Ah \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003e• Capacity: 128Wh\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eBMS included and already installed.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eNominal Voltage - 12.8v\u003cbr\u003eFully Charged - 14.6v\u003cbr\u003eFully Discharged - 10v\u003cbr\u003eMax Continuous Charge\/Discharge - 10a\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThese are awesome little batteries and perfect for battery powered toys, backup lighting, and small solar systems. \u003c\/p\u003e","brand":"Battery Hookup","offers":[{"title":"Default Title","offer_id":46487960879266,"sku":"Overstock in box Eco Worthy 10ah","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/files\/main_4ace37e4-9aac-4b9c-a065-2224d010a56b.jpg?v=1768947672"},{"product_id":"10kw-kelvin-btms-battery-thermal-management-system-400-800v-hv-liquid-cooling-heating-chiller-unit","title":"10kW Kelvin BTMS Battery Thermal Management System - 400-800V HV Liquid Cooling\/Heating Chiller Unit","description":"\u003cp\u003e\u003cspan\u003eYes these are just $1. We don't want to scrap something that usually costs thousands. If you can use these that's great. Come get em. Only $1 each.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor sale: One complete 10kW Battery Thermal Management System (BTMS) recovered from industrial outdoor lithium battery energy storage packs. \u003c\/span\u003e\u003cspan\u003eBrand: Kelvin (柯诺威 \/ Shanghai Kelvin New Energy Technology Co., Ltd.). Model: BTMS_10KW. Part #: E0-80007-00. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKey Specs (from factory plate): \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e•  Cooling capacity: 10kW (refrigeration cycle) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e•  High-voltage power: 400-800V DC (orange HV cables included)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e •  Low-voltage control: 9-32V DC \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e•  Production date: April 2023 \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e•  Full integrated assembly: compressor\/controller, condenser\/radiator, coolant pump, accumulator, valves, piping, and mounting frame Photos show the exact unit you’ll receive — clean, no major damage, all major components intact and ready for reinstallation. Removed from working industrial packs; functions as a plug-and-play chiller\/heater once plumbed and powered. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhat this does for your DIY battery build (explained for beginners):\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e If you’re building a big lithium pack (LiFePO4, NMC, or LTO) for off-grid solar storage, home ESS, EV conversion, or a Powerwall-style rack, passive cooling (just fans or natural air) isn’t enough once you scale past ~20-30kWh. Heat kills batteries — high temps cause faster degradation, reduced capacity, and thermal runaway risk during fast charging or heavy discharge. Cold weather slashes performance and can permanently damage cells. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis pro-grade Kelvin BTMS solves that completely. It actively circulates a glycol\/water coolant loop through cold plates in your battery modules: \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e•  Cools up to 10kW of heat (keeps cells safely at 15-35°C even in summer or under heavy 1C+ loads) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e•  Heats in winter (via heat-pump\/reverse cycle or integrated PTC — matches commercial 10kW cooling \/ 6-24kW heating systems)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e •  Dramatically extends battery life (often 2-3x longer cycles), allows faster\/safer charging, higher continuous power output, and full capacity in any climate It’s exactly the same tech used in electric buses, heavy trucks, and grid-scale storage systems. For a DIYer, this turns your homemade rack into a professional-grade setup without the $3,000+ price tag of buying new. Just plumb the coolant ports to your battery cold plates, hook up HV power straight from your pack (400-800V), add 12V\/24V control power, and you’re golden. Advanced users can tap CAN bus for full integration with your BMS.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e Condition \u0026amp; Notes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e •  Recovered\/used but excellent shape (see photos) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e•  Includes the full sealed unit as pictured — no missing major parts\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e •  High-voltage safety warning: This is NOT a beginner toy. Requires electrical knowledge and proper fusing. Professional installation strongly recommended. Sold as-is for experienced DIY builders only.\u003c\/span\u003e\u003c\/p\u003e","brand":"Battery Hookup","offers":[{"title":"Default Title","offer_id":46664496971938,"sku":"Kelvin cooler","price":1.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/files\/main_43c7dd46-8fb8-4ce2-80f0-b9ab652a3585.jpg?v=1773247269"}],"url":"https:\/\/batteryhookup.com\/collections\/labor-day-sale-2026.oembed","provider":"Battery Hookup","version":"1.0","type":"link"}