LiFePO4 batteries are highly safe, have no risk of explosion and fire, and are environmentally friendly, non-toxic and non-polluting. No memory effect - the battery can be charged in any state of discharge, giving you peace of mind. Nominal Voltage:3.2V Nominal capacity:22Ah Working voltage:2.0V~3.65V Continuous discharge current: 12C (30S) Dimension: 148*131*17mm Weight: 0.618kg