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Ayaa Power DC 28.7v 7s 30A Smart Bms with Communication

Working Current: 30A
Battery Type: Li-ion/Lifepo4
Battery Series: 7S
Test   item(Test at normal temperature 25±2℃ )Criterion
Communication Interface
VoltageCharging voltageDC: 28.7V CC/CV(4.1V/Cell)7s
Supply CurrentNormal operating mode current:Fuel gauge in        NORMAL mode. ILOAD >Sleep Current≤160uA
Low-power operating mode current:Fuel gauge in SLEEP mode.ILOAD < Sleep Current≤120 uA
Low-power operating mode current:Fuel gauge in FULLSLEEP mode.ILOAD < Sleep Current≤80uA
Maximal continuous charging current30A
Maximal continuous discharging current30A
Balance current for single cell42±10mA
Over-charge Protection 
(single cell)                  
Balance voltage for single cell4.1V±0.05V
Over charge detection voltage4.15±0.05V
Over charge detection delay time0.5S—2S
Over charge release voltage4.05±0.1V
Over discharge protection
(single cell)
Over discharge detection voltage3.0±0.05V
Over discharge detection delay time0.5S—2S
Over discharge release voltage3.2±0.1V
Over Current protection
(Battery pack)
ChargeOver current detection current40±5A
Detection delay time0.5S—2S
Discharge Over current detection current80±10A
Detection delay time100mS—1S
Release conditionCut load,Auto Recovery
Short protectionDetection conditionExterior short circuit
Detection delay time200-600us
Release conditionCut load
ResistanceMain loop electrify resistance ≤60mΩ
Temperaturedischarge  temperature  protection'-20~+65℃
charge temperature   protection'-10~+60℃
Operating Temperature Range-40~+85℃
Storage Temperature Range-40~+125℃
NTC:10KNTC B=3435  Temperature switch:/ ℃ (the batteries temperature)  Weak current switch:/  Activation Method:/

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