The Motorola PMNN4888A is the standard IMPRES Li-Ion battery that ships with every MOTOTRBO R5 series radio. This is the genuine Motorola Original battery, not an aftermarket cell. It delivers 2200 mAh of capacity in a slim, lightweight package with a full IP67 rating, so the battery matches the dust and water protection of the R5 radio itself.
How long does the PMNN4888A last on the MOTOTRBO R5?
Motorola publishes the following runtime figures for the PMNN4888A on R5 radios, based on the standard 5/5/90 duty cycle:
| Radio | Digital Mode | Analog Mode |
|---|---|---|
| R5 VHF (keypad or non-keypad) | Up to 21.5 hours | Up to 16 hours |
| R5 UHF (keypad or non-keypad) | Up to 20 hours | Up to 15.5 hours |
In practice that means a full shift and a second partial shift in digital mode before the battery needs a charger. If your crews run longer rotations or heavy transmit duty cycles, step up to the 3200 mAh PMNN4889A high-capacity battery instead.
What does IMPRES do on this battery?
IMPRES is Motorola's smart energy platform. The PMNN4888A stores its own charge and usage data and communicates with IMPRES chargers over a dedicated protocol. When you charge it in an IMPRES single-unit or IMPRES 2 multi-unit charger, the system handles adaptive reconditioning automatically, tracks remaining battery life, and calibrates the fuel gauge without the manual monthly reconditioning older batteries required. The result is more usable capacity over the life of the battery and a clear end-of-life indication so you replace batteries on schedule instead of guessing.
The battery still charges fine in a standard charger. You just will not get the diagnostics and automatic reconditioning without an IMPRES charger such as the PMPN4577A single-unit charger.
PMNN4888A specifications
| Part number | PMNN4888A (supersedes PMNN4888) |
| Chemistry | Li-Ion, slim high-density |
| Capacity | 2200 mAh |
| Ingress protection | IP67 (dust-tight, submersible to 1 m for 30 minutes) |
| Technology | IMPRES smart battery |
| Operating temperature | -20 C to +60 C (-4 F to +140 F) |
| Intrinsic safety | Not IS rated (for HazLoc environments, use a TIA-4950 rated battery) |
| Compatibility | MOTOTRBO R5 series only |
| Warranty | 18-month Motorola warranty |
Which radios does the PMNN4888A fit?
The PMNN4888A fits the Motorola MOTOTRBO R5 series only, including both keypad (LKP) and non-keypad (NKP) models in VHF and UHF. It is not compatible with the R2, R7, XPR series, or CP/CLS radios. If you are unsure which battery your radio takes, the model number is printed on the label under the battery. Send it to us and we will confirm fitment before you order.
Why buy genuine Motorola instead of aftermarket?
Aftermarket R5 batteries do not carry the IMPRES chip, so they cannot self-calibrate, report cycle data, or recondition in IMPRES chargers. They also void the IP67 seal guarantee, and cell quality varies widely. We have serviced two-way radio fleets for over 14 years, and battery failures are the single most common cause of dead radios in the field. On a radio your team depends on, the genuine battery is the cheap insurance.
Ordering from radioparts.com
This is a new, genuine Motorola Solutions PMNN4888A. Need batteries in quantity for a fleet, or a mixed order with chargers and audio accessories? Contact us for volume pricing.
