pcm/bms/pcb for 14.8v（4s） li-ion battery packs

Specifications  For 14.8V（4S） Li-ion Battery Packs
Model:WS-4S7A-046(4S)
1.Voltage Charging voltage    DC:16.8V  CC/CV
Balance voltage for single cell     
2.Current Balance current for single cell       
Current consumption        ≤50μA
Maximal continuous charging current       4A
Maximal continuous Discharging current  4A
3.Over charge Protection      
Over charge detection voltage for single cell    4.25V±0.025V
Over charge detection delay time      0.5S—1.5S
Over charge release voltage for single cell       4.15V±0.05V
4.Over discharge protection  

Over discharge detection voltage for single cell         2.70V±0.08V

Over discharge detection delay time  0.5S—1.5S

Over discharge release voltage for single cell   3.0±0.10V
5.Over current protection     
Over current detection voltage    200±25mv
Over current detection current     6.5±1A
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）     ≤50mΩ
8.Temperature Operating Temperature Range       -40～+85℃
Storage Temperature Range       -40～+125℃