T7.4V,1800mah Li-ion battery For two way radioTP8100,TP8115/35,TP8120/40 Two way radio battery, high quality and rechargable,strictly ... discharge characteristics.3.High impact ABS and Polycarbonate plastic polymers for ruggedness.4.Comprehensive testing including high altitude performance, vibration, ... .5.Guaranteed to maintain 80% of its rated capacity for 12 months from date of shipment.