Motorola PMNN4578 Battery
Li-Ion • 2500 mAh • Genuine Motorola OEM • DTR & TLK110 Replacement
The Motorola PMNN4578 is a genuine 2500 mAh lithium-ion replacement battery that keeps your two-way radios powered through a full shift. It is a direct OEM-spec replacement built to restore the original runtime and reliability of your fleet — a smart way to extend the life of radios you already own. Browse the rest of our business two-way radios and accessories while you are here.
Who It's For
Teams running Motorola DTR and TLK110 radios who need a spare or replacement battery to keep every unit shift-ready. Not sure this is the right part for your radio? Call 1-800-984-1534 or contact our Canadian radio experts and we'll confirm the correct battery before you order.
Why the PMNN4578 Battery
2500 mAh Capacity
A high 2500 mAh rating delivers dependable all-day talk time so radios stay live from open to close.
Lithium-Ion Technology
Modern Li-Ion chemistry means no memory effect, slow self-discharge, and consistent performance charge after charge.
Genuine Motorola Part
Authentic OEM Part No. PMNN4578 ensures a proper fit, correct contacts, and the full original capacity — not a generic clone.
Keep Your Fleet Running
Stock spares so an aging or drained battery never sidelines a radio mid-shift — swap, charge, and stay in service.
Compatible Radios
The Motorola PMNN4578 is a replacement battery for Motorola DTR series and TLK110 radios. Because battery fitment is model-specific, we always recommend confirming your exact radio model before ordering — the wrong battery may not seat or charge correctly.
Not certain whether the PMNN4578 fits your unit? Call 1-800-984-1534 or reach our team for a quick compatibility check, and explore more radios in our commercial two-way radios and business two-way radios collections.
Confirm Compatibility & Order →
Frequently Asked Questions About the Motorola PMNN4578 Battery
• What is the capacity of the Motorola PMNN4578 battery?
The Motorola PMNN4578 is a lithium-ion (Li-Ion) battery rated at 2500 mAh, delivering dependable all-day talk time for your two-way radios.
• Which radios use the Motorola PMNN4578 battery?
The PMNN4578 is a replacement battery for Motorola DTR series and TLK110 two-way radios. Fitment is model-specific, so confirm your exact radio model before ordering — call 1-800-984-1534 or contact our team if you are unsure.
• Is the PMNN4578 a genuine Motorola battery?
Yes. This is a genuine Motorola OEM part, Motorola Part No. PMNN4578, built to the original specification for proper fit and full rated capacity.
• How do I confirm the PMNN4578 is right for my radio?
If you are not sure whether the PMNN4578 fits your unit, call our Canadian radio experts at 1-800-984-1534 or use our contact page for a quick compatibility check before you order.
