Motorola PMNN4485 Impres Battery

The Motorola PMNN4485 is an IMPRES 2 Lithium-Ion rechargeable battery engineered for APX and SRX series portable radios operating in demanding professional environments. Built in a slim, short non-HAZLOC housing, it delivers a 2250mAh typical capacity while achieving an IP68 submersible ingress protection rating — a combination that supports extended shift endurance without sacrificing portability or resistance to the elements. The IMPRES 2 intelligent charging technology enables the battery and compatible IMPRES chargers to communicate for optimized charge cycles, capacity tracking, and end-of-life reporting, giving fleet managers actionable visibility into battery health across their radio inventory. This model is the designated replacement for the PMNN4403B.

Key features & benefits

• IMPRES 2 Intelligent Technology — Communicates with compatible IMPRES chargers (software version dependent) to automate charge conditioning, monitor capacity, and report end-of-life status — reducing unplanned downtime and extending overall battery service life.
• IP68 Submersible Rating — The IP68 ingress protection rating means the battery is sealed against dust ingress and sustained submersion, keeping radio operations uninterrupted in wet, muddy, or high-humidity field conditions.
• 2250mAh Typical Capacity — A 2250mAh Lithium-Ion cell provides extended operating time per charge in a slim form factor, supporting full-shift coverage for personnel who cannot afford frequent battery swaps.
• Slim, Short Non-HAZLOC Housing — The reduced-profile form factor minimizes bulk and weight on the radio body, improving comfort during prolonged carry while maintaining the structural integrity expected in professional-grade accessories.
• Direct Replacement for PMNN4403B — Designated as the replacement for the PMNN4403B, the PMNN4485 simplifies fleet battery standardization and procurement without requiring hardware modifications to existing APX and SRX radios.