Features: brand new and high quality It is small in size and suitable for many applications requiring high integration and low cost. It can meet various performance requirements and ensure the absolute safety and reliability of the battery pack. With overcharge, over discharge, over current, short circuit and other for protection functions, for a variety of shapes of various shapes lithium battery. Low standby power consumption. High-precision voltage detection circuit. Terminal device of the charger using high voltage. Specifications: Material: ABS+Metal Size: 38x8x2mm/ 1.49x0.31x0.07 in Above charge voltage: 4.25-4.35v ± 05 v Beyond dishcarge voltage: 2.5-3.0v ± 05 v Continuous for DC Max: 5A Max for peak current: 7A Operating temperature: -40 --- + 50 Storage temperature: -40- + 80 Small current: less than 5uA Package Includes: 1x Charger for Protection Board note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.