Vertex Standard EVX-539 Battery 2500mAh 18.5Wh Lithium Ion
OSI Batteries is your One Source for the highest quality aftermarket Vertex Standard EVX-539 Batteries. Our Two-Way Radio Batteries have been tested and approved for use in critical applications by the U.S. Military, Police Forces, and Fire Departments nationwide. This aftermarket Vertex Standard EVX-539 battery is guaranteed to meet or exceed the specifications of the original Vertex Standard battery. Compatible with "UNI" style chargers.
| Application: | Portable Two-Way Radio, LMR |
| Nominal Voltage: | 7.4v |
| Nominal Capacity: | 2500mAh |
| Chemistry: | Rechargeable Li-Ion |
| OEM Battery Part Numbers: | FNB-V134LI-UNI |
| Warranty: | 12 months |
| Belt Clip: | Included |
| Notes: | Compatible with "UNI" chargers |
Reviews
We're currently collecting product reviews for this item. In the meantime, here are some reviews from our past customers sharing their overall shopping experience.
4.7
Out of 5.0
Overall Rating
96%
of customers that buyfrom this merchant give
them a 4 or 5-Star rating.
March 10, 2026 by Rose J. (TX, US)
“This battery is not easy to find and I needed the batteries for my scooter to be used.”
March 10, 2026 by Michael Z. (PA, US)
“good”
March 10, 2026 by Rob M. (CA, US)
“very easy and inexpensive”
