60V 20Ah Triangle Battery Specifications: Cell Model INR21700M50LT Cell Voltage & Ah 3.7V 5000mAh Number of cells 68 Series & Parallels 17S4P Rated Capacity 20Ah Nominal Voltage 62V Internal Impedance 150mΩ Max Charge Voltage 71.4V Max Charge Current 6A Min Discharge Voltage 46V Rated Discharge Current 60A Max Discharge Current 60A Overcurrent Protection 65A Charging Mode CC/CV Cycle Life 1000 cycles Charge Temperature 0-45℃ Discharge Temperature -20-55℃ Certificates CE, UN38.3 Recommended Motor Watt 2000W-4000W Product Weight 18 lbs Package Weight 19 lbs Product Dimension 14 x 11 x 7.6 Package Dimension 17 x 10 x 8 All the batteries sold on ebikeling.com come with a charger. TIPS: The LED light on the charger remains RED while charging and turns green when the battery is fully charged or disconnected. A fully depleted lithium-ion ebike battery may take around 6 hours to recharge. It will take less if the battery has a partial charge when you start charging it. Do not leave the battery on the charger for long periods like several days or more. Do not store an empty battery in case you need to store it for some reason. Store it 50-70 percent charged. Charge your ebike battery regularly. You do not have to let the battery discharge completely.