Accessory Type: Battery Accessoriesfeature: Fine workmanship and durable.Brand newLampshift maximum discharge current: 15AInstantaneous discharge current: 25ACharging voltage: 25.5VCharging current: 15A (MAX)Overcharge detection voltage: 4.28; 0.05VOvercharge protection delay: 0.1SOvercharge release voltage: 4.08; 0.05VOver discharge detection voltage: 2.55; 0.08VOverdischarge detection delay: 0.1SThe overdischarge release voltage: 2.9; 0.1VOvercurrent detection voltage: 150mVOvercurrent detection delay: 9MSOvercurrent protection current: 30; 3AOvercurrent protection release condition: Disconnect the loadShort circuit detection delay: 250uSMain circuit conduction resistance: le;20mOmega;Working current: le;30uASleep current (battery over discharge) le;10uATemperature range: -30 / + 80 deg;Fine workmanship and durable.For the rechargeable (generally refers to the lithium battery) from the protection of the integrated circuit board. Lithium battery (rechargeable type) so need protection.As the lithium battery itself determines the material itself can not be overcharge, over discharge, overcurrent, short circuit and ultra-high temperature charge and discharge, so lithium battery lithium components will always follow a protective resistor with a sampling resistor and a current fuse.colour:greenMaterial:PC + MetalSize: approx.50*30*2mmPackage Contents:4 * 6S 15A Lithium protection boardOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.