FNB-V133Li Battery Replacement for Vertex Radios - 1500mAh Li-ion

In this review the FNB-V133Li battery replacement is assessed for owners of compatible Vertex two-way radios who need a reliable spare or replacement. The bottom line: this battery delivers a compact, high-capacity 1500mAh Li-ion option at 7.4V that fits a long list of Vertex VX and EVX models, so it is best for users who want direct compatibility and a straightforward swap without changing chargers or equipment.

Key Features

• Capacity: 1500mAh provides extended run time compared with small disposable cells, helping radios stay on duty longer between charges.
• Chemistry: The Li-ion construction offers a consistent voltage output and lighter weight than older lead or NiMH replacements.
• Voltage: 7.4V matches the specified voltage for the listed Vertex models so it works without voltage conversion or modification.
• Form factor: Dimensions 110.90 x 57.80 x 32.20 mm give a compact fit designed to replace factory packs in compatible housings.
• Certifications: ISO9001, RoHS and CE certification indicate basic quality control and compliance with common safety and environmental standards.
• Compatibility: Listed compatibility with many VX and EVX model numbers and part numbers avoids guesswork when matching to older radios.

Who It's For

This battery is aimed at professional users and hobbyists who operate Vertex VX-260, VX-261, EVX-530, EVX-531, EVX-534, EVX-539, VX-456, VX-451, VX-454, VX-459, EVX-231 and EVX-261 radios and need an exact-fit replacement with the same nominal voltage and higher capacity than some original packs. It is also useful for stores or fleets that keep spares on hand to minimize downtime.

Users who should look elsewhere include those who require manufacturer warranty-backed OEM packs or integrated smart battery features such as built-in fuel gauges; this replacement is practical but presented as a direct compatible third-party pack rather than an OEM accessory.

Pros & Cons

Pros

• Good 1500mAh capacity for extended operating time without a significant weight penalty.
• Standard 7.4V Li-ion chemistry provides stable power for compatible Vertex radios.
• Certificated to ISO9001, RoHS and CE, offering baseline quality and safety assurance.
• Clear compatibility list and multiple part number matches reduce installation surprises.

Cons

• As a third-party replacement, it may not come with OEM warranty benefits or branded packaging.
• There is no mention of integrated smart indicators or protective circuitry beyond standard certification details.

Specifications

Capacity	1500mAh
Type	Li-ion
Voltage	7.4V
Dimensions	110.90 x 57.80 x 32.20 mm
Certifications	ISO9001, RoHS, CE
Compatible Part Numbers	FNB-V133Li, FNB-V134Li, FNB-V138Li, AAJ67X001, AAJ68X001
Compatible Models	Vertex VX-260/261/451/454/456/459 and EVX-230/231/530/531/534/539 series

Our Verdict

The FNB-V133Li replacement battery is a practical, value-focused option for anyone needing a dependable 7.4V Li-ion pack for compatible Vertex radios. It pairs a useful 1500mAh capacity with industry certifications and a compact size, making it a sensible spare or replacement for field users and small fleets who prioritize run time and compatibility over OEM branding.

Frequently Asked Questions

Will this battery fit my Vertex VX-260?
Yes, the pack lists VX-260 and several VX and EVX models as compatible; confirm the radio model and battery part number before purchase.

What voltage and chemistry does this pack use?
The battery is a 7.4V Li-ion pack with a 1500mAh capacity.

Does it have safety certifications?
Yes, the product is certificated with ISO9001, RoHS and CE to indicate basic compliance and manufacturing controls.