BMS 3S 25A 12V Li-ion Protection circuit module 18650  battery pack board  is High Current With Balanced Circuit Over Charge Over-Discharge Over Current And Short Circuit Protection Function. The Board gets charging and discharging thru the same port.

When the charge balance, the board will be a bit warm, even after disconnecting the charger, some are still in the balance, will continue to warm for a while until below the equilibrium break threshold.

Specifications of 3S BMS 25A :

Operating current: 0 – 25A.

Balance current: about 40 – 50mA.

Effective life: more than 30000 hours.

Overcharge voltage range: 4.25-4.35v + 0.05v.

Over discharge voltage range: 2.3-2.7v + 0.05v.

Operating temperature: -40 – +50℃.

Instantaneous current: 35 – 40A.

Storage condition: -40 – +80℃.

Quiescent current: less than 30uA.

Internal resistance: less than 100m ohm.

Short-circuit protection: protection, delayed self recovery.