Features: The protection board uses mature 4 string dedicated lithium battery cover chip, high integration, high sensitivity, by detecting the battery voltage, charge and discharge current and ambient temperature and other information about battery overcharge, over-discharge, over-discharge current, short circuit, over-charging current, thermal protection and other real-time protection, but also through the external circuit to achieve parameter adjustment. Specifications: Color: green Material: plastic Charging voltage: 16.8V Single charging voltage: 4.2V Continuous discharge current: 0-18A Single section overcharge detection voltage: .20.05V Overcharge protection delay: 1S Charging charging voltage: 4.130.05V Overcharge protection in to raise delay: 20mS Over-discharge test voltage: 2.8V Overdrive release protection delay: 1S Overdrive recovery voltage: 3.0V Overload protection is released: 20m S Over-current detection voltage: 0.1V Over-current detection current: 32 3A Over-current detection delay: 300mS 100mS Short-circuit detection delay cia: 0mS detection voltage short circuit: 0.8V Over temperature protection temperature: 70 5 deg; Over temperature recovery temperature: 60 5 deg; Working state: 30 5uA (25 deg;) Sleep state: 6 2uA (25 deg;) Discharge circuit resistance: le; 305m Omega; Size: 34mm X 34mm Package Contents: 1 x Lithium Battery Charging Protection Board 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.