Features Support overcharge protection, overdischarge protection, overcurrent protection and short circuit protection. The circuit board is made with high quality electronic components, stable and reliable. This protection board is suitable for 6 series 3.7V 18650 Li-ion cell. Brand new and high quality. Quality assurance, long service life. Features:1. Brand new and high quality.2. This protection board is suitable for 6 series 3.7V 18650 li-ion cell.3. Support overcharge protection, overdischarge protection, overcurrent protection and short circuit protection.4. The circuit board is made with high quality electronic components, stable and reliable.5. Quality assurance, long service life. Specification:Max discharge current: 12AInstantaneous discharge current: 25ACharge voltage: 25.5VCharging current: 12A(Max)Overcharge detection voltage: 4.28±0.05VOverdischarge detection voltage: 2.55±0.08VOvercurrent detection voltage: 150mVOvercurrent protection current: 30±3AWorking current: ≤30uASleep current (when overdischarge): ≤10uAWorking temperature: -30~80℃Size: Approx. 50 x 32mm/1.97 x 1.26in Package weight: Approx. 7g Package List:1 x Protection Board for 18650 Lithium Battery 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