A NiMH (Nickel-Metal Hydride cell) battery is a rechargeable battery similar as the NiCd (Nickel-Cadmium cell) battery. The NiHM battery can have two to three times the capacity of an equivalent size of NiCd battery, and NiHM battery is lighter than NiCd battery.

Note 1: Most current Nokia devices are delivered with a Lithium-Ion (Li-Ion) or Lithium-Polymer (Li-Po) batteryNote 2: Some Nokia devices, such as Bluetooth headsets, are delivered with NiMH batteriesNote 3: NiCd batteries were used by older Nokia models that are no longer in production