Item Details: * 100% brand new and high quality * Made of high quality material, durableand practical to use * The main IC uses the original "precision" imported components. * With over charge, over discharge, short circuit, over current protection, suitable for a variety of different shapes of 3.N capacity lithium battery. * Using Japanese precision protection IC, VISHAY, AOS, IR and other high quality MOSFETs, FR-4 low temperature coefficient board, carefully designed to fully test the compact size. * Suitable for many requirements of high integration, low cost occasions. * Can meet a lot of performance requirements, to ensure the absolute safety of the battery pack. * Low current consumption. * Performance is stable. * Fine workmanship and durability. * Connection instructions: B + connect battery + B-connected battery - P + for battery output + P- for battery output input - * Size: 18 * 3.6mm(Approx.) * Overcharge release voltage: 4.230.05V * Overcharge voltage range: 4.250.05V * Overdischarge voltage range: 2.540.1V * Overcurrent detection current: 1-3 A * Main functions: overcharge protection, over discharge protection, short circuit protection, over current protection. * Optional Quantities: 10pcs, 20pcs, 50pcs, 100pcs Package Contents( Optional) : Package Contents 1: 10*Protection Plate With Soldering Strip Package Contents 2: 20*Protecti on Plate With Soldering Strip Package Contents 3: 50*Protecti on Plate With Soldering Strip Package Contents 4: 100*Protecti on Plate With Soldering Strip Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2.Please allow slight manual measurement deviation for the data.