2S 8A Li-ion Lithium Battery 7.4V 8.4V 18650 Charger Protection Board Module is a small PCB mounted Li-ion Lithium Battery charger protection module. This small and smart battery charger protection module comes with the various features like Short circuit protection, Overcharge protection, Over-discharge protection, Overcurrent protection. It is very easy to install and convenient to use in all your DIY portable projects.

Specifications:
Charging Voltage: 8.4V-9V
Overcharge Voltage Range: 4.25V-4.35V plus or minus 0.05V
Overpressure Voltage Range: 2.3V-3.0V plus or minus 0.05V
Upper Limit Operating Current: 8A
Upper Limit Instantaneous Current: 16A
Quiescent Current: less than 10uA
Internal Resistance: less than 300mΩ
Effective Life: more than 50,000 hours
Operating Temperature: -40- +50 Celsius
Storage Conditions: -40- +80 Celsius
Short circuit protection: Can be protected, charge recovery required
Size: 41mm x 8mm x 2.2mm/ 1.61″ ×0.31″×0.09″(L x W x H)

Attention:
Strictly according to the diagram wiring: B+: Battery V+ Positive, B-: Battery V- Negative, P+: Output / Charging V+, P-: Output / Charging V-, MB: The connection point between the batteries.Otherwise it will cause damage to the chip.
Do not mix the good battery and poor battery to use.
The internal resistance of 3 battery capacity are closer will be better.

Tips:
the product must be connected to a 8.4V charging voltage through p+ and p- before it will create voltage on pads.Or you can activate this BMS by momentarily shorting b- and p-.

Package inlcuded:
5x 2S lithium Battery Protection Board