Features 1、Adopt intelligent lithium cell management IC for fast and safe charging. 2、With balance charging to balance the characteristic of each battery in battery pack and prolong battery life. 3、Provide a variety of protection functions including overcharge, overdischarge, short circuit, and temperature protection. 4、Equipped with thickened aluminum fin to achieve quick heat dissipation. 5、This product has gone through load and aging test for quality assurance. Specification Features: 1. Adopt intelligent lithium cell management IC for fast and safe charging. 2. With balance charging to balance the characteristic of each battery in battery pack and prolong battery life. 3. Provide a variety of protection functions including overcharge, overdischarge, short circuit, and temperature protection. 4. Equipped with thickened aluminum fin to achieve quick heat dissipation. 5. This product has gone through load and aging test for quality assurance. Specification: Discharge current: 45A Battery type: 3.7V lithium battery Weight: Approx. 82g / 2.9oz Package list: 1 x Lithium Battery Protection Board Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List