Description
Motorola PMNN4578A BT110 Li-Ion Two-Way Radio Battery (2500mAh)
Genuine OEM 2500mAh Li-Ion battery for Motorola DTR600, DTR700, TLK100, TLK110, Curve DLR110, and VLR150 series radios. Current factory revision of the PMNN4578.
The Motorola PMNN4578A (BT110) is a genuine OEM 2500mAh lithium-ion battery designed for Motorola’s slim commercial and WAVE PTX radio lineup. A direct drop-in replacement for the PMNN4578, it delivers consistent all-day power without memory effect and maintains a precise, flush fit against the radio chassis. Because it is a genuine Motorola OEM part, it does not affect the radio’s manufacturer warranty.
Key Features & Benefits
2500mAh Capacity: Extended talk time for heavy-use shifts in retail, hospitality, and logistics environments.
Lithium-Ion Technology: Consistent power output without memory effect — charge at any depletion level without reducing long-term capacity.
Genuine Motorola OEM: Precision-engineered to exact voltage specifications. Prevents circuit damage from non-OEM alternatives and maintains warranty coverage.
Exact Fit Design: Flush, secure fit against the compatible radio chassis with no modification required.
Current Factory Revision: Replaces the PMNN4578 with upgraded internal cell chemistry for improved reliability.
Specifications
| Attribute |
Details |
| Brand |
Motorola Solutions |
| Model / SKU |
PMNN4578A |
| Alias / Battery Model |
BT110 |
| Replaces |
PMNN4578 |
| Chemistry |
Lithium-Ion (Li-Ion) |
| Capacity |
2500mAh |
| Voltage |
3.7V |
| Country of Origin |
Malaysia |
Compatibility
| Model |
Series |
| DTR600 |
Motorola DTR Series |
| DTR700 |
Motorola DTR Series |
| TLK100, TLK100i |
Motorola TLK Series |
| TLK110 |
Motorola TLK Series |
|
Curve (DLR110) — requires HN001884A01 battery door (sold separately)
|
Motorola Curve Series |
| SLN1000 |
Motorola SL Series |
| VLR150 |
Motorola VLR Series |
What’s Included
| Description |
SKU/Model |
Status |
| 2500mAh Li-Ion Battery |
PMNN4578A |
Included |
| Two-Way Radio |
— |
Sold Separately |
| Desktop Charger |
— |
Sold Separately |
Recommended Accessories
More Resources
Frequently Asked Questions
What is the difference between the PMNN4578 and PMNN4578A?
The PMNN4578A is the current factory revision of the original PMNN4578. It has the same physical dimensions and compatibility but includes upgraded internal cell chemistry for improved reliability. It is a direct drop-in replacement.
Does the PMNN4578A work with the Motorola Curve DLR110?
Yes, but the HN001884A01 battery door is required and must be purchased separately. The standard Curve battery door will not seat correctly with the PMNN4578A. If you are upgrading a Curve DLR110 to this battery, ensure you have the HN001884A01 door before installing.
How long will this battery last on a single charge?
Battery life depends on transmit/receive duty cycle, but the PMNN4578A in a DTR700 or TLK100 will typically provide 14–18 hours of operation under a standard duty cycle.
Does this battery require a special charger?
No. The PMNN4578A charges in the standard single-unit or multi-unit charger for compatible Motorola radios. The PMPN4469 Desktop Charger and PMPN4465A Multi-Unit Charger are both compatible options.
Is this a lithium-ion or nickel-metal hydride battery?
This is a lithium-ion (Li-Ion) battery. Li-Ion batteries do not suffer from memory effect, so you can charge at any depletion level without reducing long-term capacity.
Will this battery fit older Motorola DTR radios like the DTR550?
No. The PMNN4578A is designed for the DTR600, DTR700, and TLK series chassis. It will not physically fit older generation radios such as the DTR550 or DTR410.
Does installing this battery void my radio’s warranty?
No. The PMNN4578A is a genuine Motorola OEM component and will not void the manufacturer’s warranty on your radio.
Warranty
1-year manufacturer’s warranty.
