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Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE
Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE
Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE
Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE
Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE
Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE
Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE
Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE
Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE
Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE
Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE
Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE
Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE
Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE
Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE
Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE
Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE
Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE
Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE
Battery Hookup

Li-ion/Lifepo4 3s-20s 30a BMS WITH BALANCE

Regular price $10.00 $0.00 Unit price per

Note: These are not compatible with our bluetooth modules or computer interfaces.

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Here 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!)

Most 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.

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Protect your battery investment with these reliable Xiaoxiang BMS units. 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.
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We ship every day from our family owned and operated warehouse in Pennsylvania. No more waiting months for shipments overseas.
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We 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.
These 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.
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Lithium ion and polymer settings
Overcharge voltage per cell: 4.2
Overdischarge voltage per cell: 2.8
Discharge Continuous Amps: 30
10 second Discharge Burst: 60a
Charge Continuous Amps: 30a
Balancing Current: 50mA
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Lithium Iron Phosphate (Lifepo4) settings
Overcharge voltage per cell: 3.65
Overdischarge voltage per cell: 2.5
Discharge Continuous Amps: 30
10 second Discharge Burst: 60a
Charge Continuous Amps: 30a
Balancing Current: 50mA
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Parameters of each BMS
Lifepo4
4s Charge 14.6v, Discharge 10v, Nominal 12.8v
8s Charge 29.2v, Discharge 20v, Nominal 25.6v
12s Charge 43.8v, Discharge 30v, Nominal 38.4
16s Charge 58.4v, Discharge 40v, Nominal 51.2v
Lithium Ion
3s Charge 12.6v, Discharge 8.4v, Nominal 10.8v
4s Charge 16.8v, Discharge 11.2v, Nominal 14.4v
5s Charge 21v, Discharge 14v, Nominal 18v
7s Charge 29.4v, Discharge 19.6v, Nominal 25.2v
8s Charge 33.6v, Discharge 22.4v, Nominal 28.8v
10s Charge 42v, Discharge 28v, Nominal 36v
12s Charge 50.4v, Discharge 33.6v, Nominal 43.2v
13s Charge 54.6v, Discharge 36.4v, Nominal 46.8v
14s Charge 58.8v, Discharge 39.2v, Nominal 50.4v
15s Charge 63v, Discharge 42v, Nominal 54v
20s Charge 84v, Discharge 56v, Nominal 72v

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