ITEM NAME:2S 8A 7.4V Balance 18650 Li-Ion Lithium Battery Bms Charger Protection Boar OZ Description: Model: HX-2S-D01 Overcharge voltage range: 4.25-4.35v ±0.05v Size: Show in the picture Over-discharge voltage range: 2.5-3.0v ±0.05v Upper limit working current: 8A Working temperature: -40---+50 °C Upper limit instantaneous current: 10A Storage.Upper limit working current: 8A. Internal resistance: less than 300mΩ. Effective life: more than 50,000 hours. Size: Show in the picture.