Features:

High Quality

Short circuit protection.

Overcharge protection.

Over-discharge protection.

Overcurrent protection.

Can be applied to various 3.7V lithium core.

Compact size and lightweight.

Fine workmanship and durable.

Ensure the security of battery pack.

Stable performance.

Fine workmanship and durable.

Main function: over charging protection, over discharge protection, short circuit protection, over current protection function.

Usage: 1 string 3.7v lithium Lipo Li-ion 18650 battery phosphate rechargeable battery pack.