The Motorola PMNN4080 battery is the only battery pack that guarantees full rated capacity and safe charging on your CP100D and CP185 radios. Aftermarket batteries promise the same milliamp-hour rating at half the price, but they rarely deliver either the rated runtime or the charge-cycle lifespan. A genuine PMNN4080 uses Motorola-sourced Li-Ion cells with matched internal protection circuitry that communicates correctly with the IMPRES charger. The charger reads the battery’s temperature, voltage, and state of health before applying current. An aftermarket pack that lacks this data handshake either charges slowly, overheats, or fails to reach full capacity.
This genuine CP series Li-Ion battery delivers 2150 mAh at 7.4 volts nominal for up to 16 hours of runtime on a standard duty cycle. One pack covers a double shift. No mid-day swap. No second charger slot occupied. It fits both the CP100D DMR digital portable and the CP185 analog portable, so a mixed fleet of entry-level digital and analog radios shares one battery SKU. The Li-Ion chemistry has no memory effect. Partial discharges before topping off do not degrade the capacity curve. The 12-month warranty guarantees 80 percent of original capacity at the end of the coverage period.
Description
We supply original Motorola Solutions products through our authorized distribution channel. Every unit includes factory packaging, original accessories, and full manufacturer warranty eligibility. Motorola®, MOTOTRBO™, and APX™ are registered trademarks of Motorola Solutions, Inc.
A radio is only as reliable as its battery. An aftermarket pack that dies at hour seven of a ten-hour shift turns a professional communication tool into a paperweight. The Motorola PMNN4080 battery exists because the original pack that shipped with the radio eventually reaches its cycle limit. This is the direct OEM replacement engineered for that exact moment.

Why Genuine Cells Outlast Aftermarket Alternatives
An aftermarket battery competes on price. The Motorola PMNN4080 battery competes on chemistry. The genuine Li-Ion cells inside this pack are sourced to Motorola’s cell-level specification. Every cell undergoes impedance matching before assembly. The protection circuit monitors overcharge, over-discharge, short circuit, and thermal runaway at the cell level rather than at the pack level. An IMPRES charger reads this data in real time and adjusts the charge curve accordingly. An aftermarket pack with a generic protection board either lacks this communication entirely or sends dummy data that the charger ignores. The result is a slower charge, a hotter pack, and a capacity curve that degrades twice as fast. The genuine pack costs more up front. It costs less over three years of daily charge cycles.
One Battery, Two Radio Families: CP100D and CP185 Cross-Compatibility
Fleet battery management gets complicated when every radio model uses a different pack. This PMNN4080 2150mAh replacement pack simplifies that equation. It is the standard battery for the CP100D DMR digital portable and the CP185 analog portable. A mixed fleet running CP100D portables for digital talkgroups and CP185 portables for analog channels stocks a single battery part number. The same IMPRES charger charges both. The same spare inventory covers both. A supervisor does not check the radio model before handing out a fresh pack from the charging bay.
16 Hours on a Single Charge: Li-Ion Without the Memory Effect
Runtime claims mean nothing without the duty cycle definition. This Motorola high-capacity radio battery delivers 16 hours at the standard 5-5-90 cycle: five percent transmit, five percent receive, ninety percent standby. A security guard on a 12-hour patrol shift starts with a fully charged pack and finishes with reserve. The Li-Ion chemistry eliminates the memory effect that plagued older NiMH batteries. Partial top-ups during meal breaks do not create a false capacity floor. The pack charges to full from any starting state. After 12 months of daily use, the capacity floor is guaranteed at 80 percent of the original 2150 mAh rating.
Technical Specifications and Warranty
Every Motorola PMNN4080 battery is a genuine OEM product with full warranty coverage.
- Chemistry: Lithium-Ion (Li-Ion)
- Capacity: 2150 mAh (nominal)
- Voltage: 7.4 V (nominal)
- Runtime: Up to 16 hours (5-5-90 duty cycle)
- Compatibility: Motorola CP100D, CP185 series portables
- Charger: IMPRES charger compatible with full data communication
- Warranty: 12 months, 80% minimum capacity guarantee
- Memory Effect: None (Li-Ion chemistry)



