180 mAh Nickel Metal Hydride, 1.2 Volts Replaces 18AAAAH and GP18AAAAH Rechargeable Cylindrical 1/2AAAAA Cell A Rechargeable N Size Battery 1 cell ( LR1, 910A or UM5 MN9100 MN21) 1.2V 360mAh NiMH - N-360NM-. NiCD versions of this battery are not as good as the advanced chemistry NiMH. Use this NiMH ...