Product parametersBattery brand: kedanoneBattery type: 18650Cell voltage: 3.7VCombination: 13 series 3 andNominal voltage: 48V Input voltage: 48V Output voltage: 48VCombined capacity: 60000mAh (20Ah)Battery size: 238 x 68 x 65mm (there may be a 10mm error) 3 x 13Outer packaging: blue PVCBuilt-in protection circuit: overcharge, overcharge-discharge, over-current, short-circuit protection For other needs, please contact the store owner. Thank you to new and old customers.Battery charging requirements: Please purchase an additional charger in our store 1: A dedicated lithium battery charger is required;2: Charging voltage: 48V3: Charging current: greater than or equal to 5ABattery discharge requirements:1: Output 18 lines, 200mm long, one red and one black2: The input lead wire leads out 2.1 and is 200mm long3: Rated discharge current: greater than or equal to 10A4: Maximum instantaneous current: 40A5: Maximum operating current: 13A