BMS module with balance, 3.2V, LiFePo4, 5S, adjustable 3S, 4S, 9.6V, 100A

BMS module, adjustable between 3S and 5S, factory set to 5S, for lithium batteries with a nominal voltage of 3.2V and maximum charging voltage of 3.6V per cell.

The module offers the possibility to add an NTC thermistor for the excessive temperature protection function.

The board can be used in two configurations, Split and Same Port (see the picture below for the two configurations). In Split mode, a higher continuous discharge current is supported compared to Same Port mode.

Setting the module in a different configuration than the one in the factory is done by a bridge between the B1 and B2 pads. In the 5S configuration, there are no links between the forests. In the 4S configuration, there is only one bridge in B1. In the 3S configuration, there is a bridge in B1 and B2. The bridge can also be made with an SMD resistor with a value of 0Ω.

Specifications in the factory configuration:

Nominal voltage: 16.0VDC

Number of cells: 5

Charging voltage: 18VDC

Charging voltage protection: 3.61 - 3.69VDC

Load protection delay: 500 - 1500mS

Discharge voltage protection: 2.27 - 2.43VDC

Discharge recovery voltage: 2.45 - 2.65VDC

Recovery protection delay: 500 - 1500mS

Discharge current protection: 100A

Discharge current protection delay: 100 - 300mS

Nominal continuous discharge current Split mode: 50A

Nominal continuous discharge current Same Port mode: 40A

Continuous charging current: 40A

Current load protection delay: 10 -30mS

Quiescent current: 17uA

Temperature protection: Yes, it has an NTC probe interface

Disconnection protection: Yes

Short circuit protection: NO

Excessive current recovery mode: load disconnection

Balance function: Yes

Equalization voltage: 3.355 - 3.455VDC

Cell equalization current: 60mA

Working temperature: -20°C - +65°C

Storage temperature: -40°C - +85°C

Dimensions mm: 62 x 42 x 4mm

Configuration change instructions:

5S: B1 and B2 free, forests highlighted in the photo ( Hanginf Short) free.

4S: B1 in short, hanging short pad from left to short, right free.

3S: B1 and B2 in short, pad Hanging Short from right in short, left free