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Ayaa Power 21v 7s 15A intelligent battery bms management system with SMBUS Communication

Model: PCM-L07S30-F79 (LI-7S)
Working Current: 15A
Battery Type: Li-ion/Lifepo4
Battery Series: 7S
Model:PCM-L07S30-F79 (LI-7S)
Test   item(Test at normal temperature 25±2℃ )Criterion
Communication Interface
CapacityDesigning battery capacity(PCM )mAh
Max capacity(Battery pack)320000mAh
Min capacity(Battery pack)800mAh
External capacity IndicationLCD,LED
Gas gauge algorithmIT (High accuracy)
VoltageCharging voltageDC:21V CC/CV(4.2V/1cell)
Cell-balance detection voltage(Charge balance)4.2V ±0.025V
Cell-balance detection delay time0.5S—2S
Supply CurrentBalance current for single cell42±3mAe
Normal operating-mode current (Gas Gauge IC)'200 uA
SLEEP operating-mode current (Gas Gauge IC)'100 uA
Maximal continuous charging current15A
Maximal continuous discharging current15A
Over-charge Protection 
(single cell)                  
Balance voltage for single cell/
Over charge detection voltage4.25±0.025V
Over charge detection delay time0.5S—2S
Over charge release voltage4.05±0.05V
Over discharge protection
(single cell)
Over discharge detection voltage2.5±0.07V
Over discharge detection delay time10—30mS
Over discharge release voltage3.0±0.1V
Over Current protection
(Battery pack)
Over current detection current50±10A
Detection delay time5ms—15ms
Release conditionCut load,Auto Recovery
Short protectionDetection conditionExterior short circuit
Detection delay time200-800us
Release conditionCut load
ResistanceMain loop electrify resistance ≤50mΩ
TemperatureOperating Temperature Range-40~+85℃
Storage Temperature Range-40~+125℃
Discharging Temperature Protection65℃
NTC:/  Temperature switch:/   Weak current switch:/  Activation Method:/

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 Eliza Chen (General Manager)
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