The lithium battery protection board properties:
Model: HX-2S-D20 overcharge voltage range: 4.25-4.35v ± 0.05v
Size: 46 * 20 * 3.6mm over discharge voltage range: 2.5-3.0v ± 0.05v
Upper working current: 13A Operating temperature: -40 --- + 50 ℃
Upper limit instantaneous current: 20A Storage conditions: -40-- +80 ℃
Quiescent current: less than 10uA Effective life: more than 50,000 hours
Internal resistance: less than 300mΩ Short circuit protection: can be protected, need to charge recovery
Charging voltage: 8.4V-9V
The protection board size and device description.
The protective plate size is 46 * 20 * 3.6mm
Welding point Description:
B + Connected to the battery positive.
B - The battery negative.
MB connects the battery 1 to the connection point before the battery 2.
P + Connected to the charge / discharge side of the positive (charge side /discharge side shared);
P - Connect / discharge terminal negative ( shared with charge / discharge).