Motorola PMNN4080 High Capacity Battery for CP100D

The PMNN4080 is the high capacity battery for Motorola's CP100D. The CP100D user guide lists it in the authorized accessories as a high capacity lithium-ion pack at 2,150 mAh.

Capacity is the only lever on run time once the radio is chosen, so this is the pack for double shifts and for any radio that keeps arriving at the end of the day flat. The alternative Motorola lists for the same radio is the PMNN4476 at 1,750 mAh, which is rated IP54 and is the choice where sealing matters more than hours.

That is a real trade rather than a better and worse option, and the site conditions decide it. Motorola's standing guidance on pairing applies: its batteries are designed for Motorola Solutions chargers and the reverse.