4S Battery Protection Board (BMS) 40A 16.8V - (AD55834)

Description:

A BMS is a battery management system that is often used in a medium or large format lithium-ion battery pack. A BMS is a circuit board that provides protection, monitoring, balancing, and other high-level functions for a battery pack.

Note: Connect strictly according to the wiring diagram 0V, 4.2V, 8.4V, 12.6V, 16.8V; do not intentionally short-circuit. When using a motor brush, try to connect a non-polar capacitor (withstanding voltage greater than 35V, capacity 10uF - 100uF) to the positive and negative terminals of the motor to prevent motor reverse spikes.

Specifications:

- Continuous discharge current (upper limit): 40A (if the cooling environment is not good, reduce the use of load current)

- Continuous charging current (upper limit): 20A

- Charging voltage: 16.8 V - 18.1 V

- Nominal cell voltage 3.6 V, 3.7 V lithium battery (including 18650, 26650, lithium polymer battery)

- Dimensions: 5 x 4.2 cm (upgraded version)