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About the battery BMS/PCB/PCM
Function: Detect and protect the battery from over-charge ,over-dicharge, over-current short-circuit ,temperature detecting protection and auotmatically voltage balance function .
Build with high end electronic components (High End IC and MOSFET ) ,simple structure design will let it have more stable quality working performance , Flexible application ( it can be used for less series battery by leaving some connection pins at empty status ),full set of protection measures let it works well without any infulence from external unexpected accidents.

Shenzhen Li-ion Battery Bodyguard Technology Co.,LTD | |||
PCM Specifications For 37V(10S)Li-ion Battery Packs | |||
Model:LWS-26S100A-057(10S) | |||
No. | Test item | Criterion | |
1 | Voltage | Charging voltage | DC:16.8V CC/CV |
Balance voltage for single cell | 4.20±0.025V | ||
2 | Current | Balance current for single cell | 120±10mA |
Current consumption | ≤20μA | ||
Maximal continuous charging current | 20A | ||
Maximal continuous Discharging current | 80A | ||
3 | Over charge Protection | Over charge detection voltage for single cell | 4.25±0.025V |
Over charge detection delay time | 0.5S—1.5S | ||
Over charge release voltage for single cell | 4.05±0.05V | ||
4 | Over discharge protection | Over discharge detection voltage for single cell | 2.50±0.062V |
Over discharge detection delay time | 10mS—150mS | ||
Over discharge release voltage for single cell | 3.00±0.062V | ||
5 | Over current protection | Over current detection voltage | 0.62V |
Over current detection current | 200±50A | ||
Detection delay time | 5ms—15ms | ||
Release condition | Cut load | ||
6 | Short protection | Detection condition | Exterior short circuit |
Detection delay time | 200-500us | ||
Release condition | Cut load | ||
7 | Resistance | Protection circuitry(MOSFET) | ≤20mΩ |
8 | Temperature | Operating Temperature Range | -40~+85℃ |
Storage Temperature Range | -40~+125℃ | ||
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*Complete products contract PCB assembly and manufacturing services
*Circuir boards 2 to 30 layers PCB layout,fabrication, PCB assembly and box build
*Active and passive components source is directly from original manufacturer
*Enclosure cabinet case plastic injection molding,mental stamping,manufacture and assembly
*High-precision 0201 size components SMT technology and lead-free
*IC pre-program
*Hight-precision E-Testing
ShenZhen LWSPCM Co;ltd -We are specialzed manufacturer in the lithium battery pack pcb/pcm/bms.



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sible for buyers' mistake or wrong handling, our product must be maintained in proper way. If Item is defective
and not working on arrival, please report the item to us within 7 days of receiving the defective product so we
can issue a RMA.
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