pcb/pcm/bms for li-ion/lifepo4 battery pack

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Basic Info.
  • Brand Name: LWS 
  • Base Material: fr4 
  • Size: L47*W33*T4mm 
  • Model No.: LWS-7S7A-029(5S) 
  • Place of Origin: Guangdong  
  • Min.Order: 100 Piece/Pieces
Supply Capacity
  • Packing:Inner packing:Vaccum packing/Plastic bag.
  • Delivery Date: within 7-15 working days
     Shenzhen Li-ion Battery Bodyguard Technology Co.,LTD 
PCM Specifications  For 18.5V(5S) Li-ion Battery Packs
Model: LWS-7S7A-029(5S)
No.Test   itemCriterion
1VoltageCharging voltageDC:21V  CC/CV
Balance voltage for single cell
2CurrentBalance current for single cell
Current consumption ≤20μA
Maximal continuous charging current4A
Maximal continuous Discharging current4A
3Over charge ProtectionOver charge detection voltage for single cell4.25±0.025V
Over charge detection delay time0.5S—1.5S
Over charge release voltage for single cell4.05±0.05V
4Over discharge protectionOver discharge detection voltage for single cell2.50±0.062V
Over discharge detection delay time10mS—150mS
Over discharge release voltage for single cell3.00±0.062V
5Over current protectionOver current detection voltage0.62V
Over current detection current15±3A
Detection delay time  5ms—15ms
Release conditionCut load
6Short protectionDetection conditionExterior short circuit
Detection delay time200-500us
Release conditionCut load
7ResistanceProtection  circuitry(MOSFET)≤20mΩ
8TemperatureOperating Temperature Range-40~+65℃
Storage Temperature Range-40~+125℃

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Shenzhen Li-ion Battery Bodyguard Technology Co.,Limited
Building D,3F,Xinwei Third industrial zone,Long Hua new district, Shenzhen, Guangdong, China (Mainland)
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