7.4V 2000mAh KNB-57L Replacement Battery for Kenwood Radios - 2 Pack

In this review the author examines the 2 pack of KNB-57L replacement batteries and concludes they are a straightforward, cost-effective option for users who need reliable standby power for Kenwood two-way radios. Suitable for fleets, installers, and field technicians who rely on TK and NX series radios, the biggest reason to buy is the direct compatibility and factory-new Li-ion chemistry that restores runtime without replacing the radio. The review is based on the product spec sheet and typical field expectations for a 7.4V, 2000mAh replacement cell.

Key Features

• Compatibility: Works with a broad range of Kenwood TK and NX radios so users can replace worn packs without changing chargers or accessories.
• Capacity: 2000mAh capacity provides noticeably longer run time than older, diminished batteries and is suitable for a full shift in many use cases.
• Chemistry: Li-ion construction offers a good balance of energy density and weight so packs remain compact at about 116g each.
• Factory New: Sold as factory packed and 100% new which reduces the risk of degraded cells often found in used or gray-market packs.
• Two-Pack Convenience: Includes two matching batteries so teams can rotate spares or replace both worn cells at once for consistent performance.

Who It's For

This product is aimed at professionals and small organizations that use Kenwood TK- and NX-series two-way radios and need an affordable, direct-fit replacement battery. It is especially relevant for maintenance staff, event crews, security teams, and construction crews who value quick swap capability and predictable runtime.

Users who should look elsewhere include those who require extended-life aftermarket packs with higher-than-stock capacity, proprietary rapid-charge systems, or batteries explicitly certified by the radio manufacturer for warranty service. Also avoid if you need a battery that ships fully charged and ready for immediate heavy use.

Pros & Cons

Pros

• Direct fit for many Kenwood models, simplifying replacement and compatibility with existing chargers.
• 2000mAh Li-ion capacity restores usable runtime for full-shift operation in typical deployments.
• Factory new condition reduces the chance of premature failure compared with used replacements.
• Two-pack format provides spare power without needing separate orders.

Cons

• Ships partially discharged, so a charge cycle is required before first use to reach full capacity.
• Not an OEM-labeled pack, which may matter to buyers who require manufacturer-authorized parts.

Specifications

Our Verdict

For teams and technicians who need a dependable, inexpensive way to return Kenwood TK and NX radios to solid runtime, this 2 pack of 7.4V 2000mAh replacement batteries is a practical choice. It delivers the expected voltage and capacity, arrives factory new, and includes two packs for immediate rotation - good value for routine replacements though not a substitute for OEM warranty parts.

Frequently Asked Questions

Do the batteries arrive fully charged?
They are not shipped fully charged; charge them in your compatible charger until the charger indicates a green or complete state before first use.

Will these fit my Kenwood KNB-57L charger base?
Yes, they are listed as compatible with KNB-57L and fit common charger bases such as the KSC-25 style used with the same form factor.

Are these original manufacturer batteries?
The pack is factory packed and new but is sold as a compatible replacement rather than an OEM-branded battery, which may matter for warranty considerations.