Operational Time (hours)* - 8 Chemistry - NiCd Intelligent - No Intrinsic Safety Standard - FM Capacity (mAH) - 1200mAH Number of Charge Cycles - 650 Weight (g) - 226 Dimensions HxWxD (mm) - 120 x 52 x 22 Operating Temperature Range (°C) - –30 to +60 * Typical Usage Time of Battery - When fully charged, presuming 90:5:5 standby: send: transmit ratio