Balanced 2S Lithium Battery Protection Board/BMS

Suitable for lithium batteries with nominal voltage of 3.7V and full voltage of 4.2V (including 18650, 26650, polymer lithium batteries)

Charging voltage: 8.4V – 9.0V

Continuous discharge current (upper limit): 20A (If the cooling environment is not good, reduce the load current)

Continuous charge current (upper limit): 10A
Balanced:

Suitable for starting currents below 25A and below 50W power drills, or resistive loads below 168W,.

This is a balancing BMS with battery charging balancing function.

Size: 48x20x3.4mm

Note:

Connect 0V, 4.2V, 8.4V according to the diagram strictly.

When connecting the batteries for the first time, they need to be charged beforehand.

When in use, the “430” resistance heating is normal, this indicates that the equalising circuit is working;
if the “430” resistance is also heating when not charging, please check whether the wrong line is connected.
Do not mix good batteries and bad batteries together!

The capacity/internal resistance of 2 batteries should be as close as possible!

What’s in the box
1 x Balanced 2S Lithium Battery Protection Board/BMS