The Lord of the Tools 6Pcs PCM BMS Battery Protection Board Lithium Battery Protection Board 3.7V 2.5A 1S with Overcharge and Over Discharge Protection for 18650 Battery Panel
$7.59
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Product details
Package Dimensions: 3.15 x 2.36 x 0.39 inches; 0.35 ounces
Date First Available: July 9, 2025
Manufacturer: The Lord of the Tools
ASIN: B0FH4LQWM4
About this item
Suitable for 18650 batteries, suitable for the protection of single 3.7V lithium batteries, widely used in DIY battery packs, power tools, electric vehicles and other equipment.
This lithium battery protection board has a 2.5A current limiting function, which can effectively prevent battery overcurrent, protect the battery safety during charging and discharging, and extend the battery life.
Wiring instructions: B+ connects to the positive pole of the battery, B- connects to the negative pole of the battery, P+ is the positive pole of the battery pack output input, and P- is the negative pole of the battery pack output input.
With 1S configuration, this protection board is specifically used for the protection of a single battery and does not support the application of multiple batteries in series. Suitable for a simple 3.7V lithium battery power supply system.
Provides overcharge protection, over-discharge protection and short-circuit protection to ensure that the battery will not be damaged by excessively high or low voltage during use, and can also prevent failures caused by battery short circuits.
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