Charger for Li-ion 18650 BMS 4S cells - 16.8V

The circuit is designed for use with devices up to 230W and with an instantaneous (starting) current of up to 80A. Compatible with battery packs in screwdrivers - but remember to connect a capacitor (this can be from 10 uF to 1000 uF) in parallel to the motor terminals. This module is designed to protect the battery against over-discharge, over-charging, current overload and short circuits. In addition, it ensures even charging and discharging of the individual cells, which contributes to the battery's long-term and reliable operation.

Specification:.

* Supports 4S batteries: Li-Ion, LiCoO2, LiMn2O4, Li NiCoMn O2

* Supply voltage: 16.8 - 18.1 V

* Instantaneous maximum current: 80A

* Cell overcharge protection: 4.2 - 4.3 V

* Cell discharge protection: 2.4 - 2.6 V

* Continuous charging current (max): 20 A

* Continuous discharge current (max): 40A (if the temperature rises, an active cooling system must be used)

* Equalising current: 100 mA

* Current protection: 70A

* Control system current consumption: 40 µA

* Resistance: 3 mOhm

* Short circuit detection time: 100 µs

* Overcurrent overload detection time: 500 µs

* Short-circuit protection

* Dimensions: 61 x 46 x 4 mm

When using a charger, use cells with the same voltage, capacity and internal resistance. Do not mix new and used cells.