NiMHBattery1.ThisNi-MHrechargeablebatterywith300mAhisthehighestcapacitybatteryinthefield2.Nominalvoltage:9V3.Withthestandardsizefor9Vbatteryas17.5x26.5x48.5mm4.Widelyusedforportablemicrophone,smokealarm,andallkindsofmeters5.Longlifewithmorethan500cycles6.OEMordersiswelcome.