Smart PCM/BMS for 20S~30S battery with software/app programing

Availability: Out of Stock


Brand: GBK


Quick Overview

Smart BMS for 20S, 21S, 22S, 23S, 24S, 25S, 26S, 27S, 28S, 29S, 30S LiFePO4 or Lithium-ion batteries. You can set the battery parameter with your computer or cell phone. The Android APP can slightly modify parameter for the BMS while the IOS APP can only read datas and cannot modify data from mobile. The max current can be 100A for this BMS.  By the way, please set the recycle capacity to be 80% of the rated capacity/actual capacity. If you need the software, app and connection diagram,  please download from here: Smart BMS software/app/diagram.

If you need a charger for the smart BMS, we can also provide: customized charger.



Smart BMS/PCM for 20S~30S, lithium batteries(Li-ion or LiFePO4). The Android APP can slightly modify parameter for the BMS while the IOS APP can only read datas and cannot modify data from mobile . 

Function Testing item Testing condition Parameter Unit
Min Suggested Max
Overcharge Overcharge protection voltage  charging 4.22 4.25 4.28 V
Overcharge protection delay time / 500 1000 1500 mS
Overcharge protecting release voltage / 4.1 4.15 4.2 V
Balancing BalancingVoltage difference / 4.17 4.2 4.23 V
Balancing start voltage / 30 mV
Balancing  current  / 50 60 mA
Charging current Charging current / 15 A
Over-temp for charging High Temp protection for charging / 62 65 68
Recover from high temp / 52 55 58
Low Temp protection for charging / -12 -10 -7
Recover from low temp / -3 0 3
Over discharge Over-discharge protection voltage disharging 2.42 2.5 2.58 V
Over-discharge protection delay time / 500 1000 1500 mS
Over-discharge protection release voltage / 2.7 2.8 2.9 V
Discharge current Max  continuous discharging current / 30 A
Over discharging protection Over discharging protection current / 55 60 65 A
Over discharging recover Over discharging recover / 32 S
Short circuit Short-circuit protection / 150 200 250 A
Short-circuit protection delay time / 200 400 800 mS
Short-circuit protection recover / Disconnect load for 32seconds
Over-temp for discharging High Temp protection for discharging / 67 70 73
Recover from high temp / 57 60 63
Low Temp protection for discharging / -12 -10 -7
Recover from low temp / -3 0 3
impedance impedance for loop current / 10 mR
Internal power consumption Normal condition with communication mode 20 mA
Sleeping  150 200 Ua
Sleeping delay time 8 10 S

The testing for the BMS may take a few days, therefore the leadtime for the PCM is about a week.

If you need the smart BMS connection and software etc, please download from here.

Additional Info

Additional Information

dimension 180 x 110 x 20mm
net weight 0.2KG
Manufacturer GBK

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