BMS 6S-21S Li-Ion 120A 3,2V Smart Bluetooth

Technical Specifications

Operating voltage range: according to the selected configuration

Constant charging current: 120 A

Constant discharge current: 120 A

Maximum charging voltage of the battery pack: depending on the selected configuration

Limit voltage for activation of overcharge protection: 4.25 V

Overcharge protection switch-on delay: 2000 ms

Limit voltage for tripping overvoltage protection: 4.15 V

Undervoltage protection tripping limit: 2.8 V

Undervoltage protection tripping delay: 2000 ms

Limit voltage for tripping underrun protection: 3.0 V

Limit current for tripping the undercurrent protection during charging: 140 A

Delay of current protection tripping during charging: 10 s

Current protection tripping condition during charging: 32 s

Current protection tripping limit current during discharge (I): 140 A

Current protection tripping delay during discharge (I): 10 s

Current protection tripping limit current during discharge (II): 500 A

Tripping delay of current protection during discharge (II): 600 ms ~ 1800 ms

Discharge current protection tripping condition (I + II): recovery after 32 s

Short-circuit protection tripping delay: 5000 μs

Short-circuit protection tripping condition: load tripping and recovery after 60 s

Limit voltage for tripping balancing: 3.95 V ~ 4.05 V

Limit voltage difference for balancing switching: 10 mV

Balancing mode: charging/discharging/permanent balancing

Balancing current: 200 mA

Maximum temperature for activation of thermal protection during charging: 65 °C

Maximum limit temperature for switching off the temperature protection during charging: 55 °C

Lowest temperature for switching on temperature protection during charging: -5 °C

Lowest temperature limit for switching off temperature protection during charging: 0 °C

Maximum temperature for activation of thermal protection during discharge: 75 °C

Maximum limit temperature for switching off thermal protection during discharge: 65 °C

Lowest temperature for activation of thermal protection during discharge: -20 °C

Limit lowest temperature for switching off thermal protection during discharge: -10 °C

Internal resistance of the discharge circuit: 5 mΩ

Current consumption in normal mode (with load): 35 mA

Idle current consumption (no load): 500 μA

Sleep mode switchover delay and conditions: after 65 s without load current, communication or protection mode

Normal operating temperature range: -20 °C ~ 70 °C

Storage temperature range at relative humidity <90%: -40 °C ~ 85 °C

Dimensions (W × H × D): 76 × 202 × 20 mm

Before first use, the negative terminal of the battery must first be connected to the BMS. Then the balance connector, which is already connected to the individual battery cells, needs to be connected. Failure to follow this connection sequence may result in permanent damage to the BMS.

Connection cables are included in the package of the BMS with external Bluetooth module.

Mobile app for JBD BMS

Monitor individual battery cell voltage, current or temperature and other parameters in real time. This Smart BMS has integrated Bluetooth technology that allows you to control and monitor your battery directly from your mobile phone or tablet. Use the QR code below to get the app.