Specification D size mh-ni high power battery module (7.2v battery module) Itemspecification Dimensionsouter diameter (mm)34.0+/-0.5 Over length (mm)382+/-2 (including terminal) Approximate weight(g)1060 Nominal capacity(mah)6500 (iec standard) Nominal voltage(v)7.2 Internal resistance (mo)=9.6 Peak power(w)=150(dod50%) Specific power(w/kg)=850(dod50%) Peak discharge (25c discharge, 50%soc, 4.8v cut-off voltage)=10s Maximum continuous discharge (15c discharge, 50% soc, 4.8v cut-off voltage)=60s High temperature performance (50? charge/discharge capacity rate)=90% Low temperature performance(-20? charge/discharge capacity rate)=85% Charge retention (28 days charge retention rate)=80% Working temperature range-40? to +55? Storage temperature range-40? to +65? Cycle life (c/3 charge, 1c discharge)=1000 cycles