Features: _x000D_ 1. Adopt intelligent lithium cell management IC for fast and safe charging. _x000D_ 2. With balance charging to balance the characteristic of each battery in battery pack and prolong battery life. _x000D_ 3. Provide a variety of protection functions including overcharge, overdischarge, overcurrent and short circuit protection. _x000D_ 4. Equipped with thickened aluminum fin to achieve quick heat dissipation. _x000D_ 5. This product has gone through load and aging test for quality assurance. _x000D_ _x000D_ Specification: _x000D_ Battery type: 3.7V ternary cell, lithium manganate cell, lithium cobalt cell _x000D_ Applicable voltage: 50V _x000D_ Charge current: 28A _x000D_ Discharge current: 30A _x000D_ Max continuous working current: 28A _x000D_ Overdischarge protection voltage: 2.6V _x000D_ Overcharge protection voltage: 4.25V _x000D_ balance voltage: 4.2V _x000D_ Temperature protection: Discharge 75, charge -7 _x000D_ Weight: Approx. 51g / 1.8oz _x000D_ _x000D_ Package list: _x000D_ 1 x lithium Battery Protection Board 1Adopt intelligent lithium cell management IC for fast and safe charging. 2With balance charging to balance the characteristic of each battery in battery pack and prolong battery life. 3Provide a variety of protection functions including overcharge, overdischarge, overcurrent and short circuit protection. 4Equipped with thickened aluminum fin to achieve quick heat dissipation. 5This product has gone through load and aging test for quality assurance.