1. Features an intelligent lithium battery management IC for fast and safe charging. 2. Includes balancing charging to equalize the characteristics of each battery in the pack and extend battery life. 3. Provides a variety of protection functions, including overcharge, over-discharge, overcurrent, and short circuit protection. 4. Equipped with a thickened aluminum fin for rapid heat dissipation. 5. This product has undergone load and aging testing for quality assurance. Features: 1. Adopts intelligent lithium battery management IC for fast and safe charging. 2. With balancing charging to balance the property of each battery in battery pack and extend battery life. 3. Provide a variety of protection functions including overcharge, over-discharge, overcurrent and short circuit protection. 4. Equipped with thickened aluminum fin to achieve rapid heat dissipation. 5. This product has undergone load and aging test for quality assurance. Specification: Battery type: 3.7V ternary cell, lithium manganate cell, lithium cobalt cell Applicable voltage: 12V Charging current: 28A (Max) Discharge current: 40A Maximum continuous working current: 28A Over-discharge protection voltage: 2.6V Overcharge protection voltage: 4.25V Balancing voltage: 4.2V Balancing current: 45mA Weight: Approx. 12g 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.