This protection module is designed for a 3S configuration of 18650 lithium batteries or polymer lithium batteries. It supports a rated voltage of 10.8V for polymer batteries, 11.1V for 18650 or 3.7V lithium batteries, and a maximum charge voltage of 12.6V. The module provides comprehensive protection including overcharge, over-discharge, overcurrent, and short circuit protection, with a maximum discharge current limit of 10A.
Key Features
Configuration: Supports 3S (three batteries in series) configuration.
Rated Voltage:
10.8V for polymer batteries
11.1V for 18650 or 3.7V lithium batteries
12.6V for fully charged lithium batteries
Protection Features:
Overcharge protection
Over-discharge protection
Overcurrent protection
Short circuit protection
Discharge Current: Maximum discharge current of 10A.
Battery Capacity Calculation
1C Battery:
Capacity of 2000mAh (2AH) allows for a maximum current of 2A (2AH * 1C = 2A).
3C Battery:
Capacity of 2000mAh (2AH) allows for a maximum current of 6A (2AH * 3C = 6A).
Important Notes
Wiring: Follow the wiring diagram strictly:
0V (B)
3.7V (B1)
7.4V (B2)
11.1V (B+)
Avoid intentional short circuits.
Initial Charge: After the first charge, the module will be active and have output.
Battery Voltage Matching: Ensure each battery group has the same voltage before connecting in series. If the voltages differ, charge each battery separately to match before use. During discharge testing, the battery group with the fastest voltage drop indicates the weakest battery.
Warnings
Compatibility: This protection board is not suitable for lithium iron phosphate batteries, hernia lamps, hand drill batteries, electric fish batteries, electric bicycle batteries, children’s car batteries, 775 (4A) motors, or 1W fish eye LED lights.
Heating: If the battery heats up during use, it is incompatible. Continuing to use it will damage the battery.
Application Examples
Suitable For:
Massager rechargeable batteries
LED ready light power supplies
12V electronic products
Solar street lamp batteries
Power backup monitors
This protection module ensures the safe operation of your lithium battery packs, providing essential protection and maintaining battery health over time.
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