BKCLPB42-4000-D 7.4V 4000mAh Li-ion Replacement Battery - Long Run

In this review the BKCLPB42-4000-D is evaluated as a direct replacement battery for Kenwood two-way radios. The bottom line: this pack is best for users who need a high-capacity, reliable spare to extend radio runtime without changing equipment. The review finds the battery lives up to expectations for form and capacity, offering a dense, thick-shell housing and A GRADE cells that aim to match the original Kenwood PB-42L in fit and output. For field technicians, hobbyists and anyone who relies on a TH-F6A or TH-F7E, it provides a straightforward way to regain long operational time.

Key Features

• Compatibility: Fits Kenwood TH-F6A and TH-F7E radios exactly, making replacement simple and drop-in ready.
• Capacity: Rated at 4000 mAh, the pack provides extended runtime compared with many standard replacement cells so radios run longer between charges.
• Voltage: The 7.4 V Li-ion chemistry delivers stable power for consistent radio performance across typical use cycles.
• Construction: Densely constructed with a thick shell casing, the battery resists everyday knocks and handling in field use.
• Cell quality: Built from A GRADE battery cells and tested during manufacturing to meet form, fit and workmanship expectations of the OEM equivalent.
• Capacity retention: Maintains high capacity for 12 months from date of shipment, which helps ensure useful service life after purchase.

Who It's For

The BKCLPB42-4000-D is ideal for professionals and enthusiasts who need a dependable spare battery for Kenwood TH-F6A or TH-F7E radios. It suits technicians, event staff and outdoor users who value longer on-duty periods and a robust housing that stands up to routine handling.

This battery is less relevant for users who require proprietary OEM warranty service or exact manufacturer packaging; anyone who must strictly use only factory-branded power packs for warranty reasons should consider the original Kenwood PB-42L instead.

Pros & Cons

Pros

• Higher 4000 mAh capacity gives noticeably longer runtime compared to lower-capacity replacements.
• Thick shell casing and dense construction feel durable in everyday use.
• A GRADE cells and production testing help ensure consistent performance and safe operation.
• Maintains declared capacity for 12 months from shipment, which reduces short-term degradation concerns.

Cons

• Not a factory Kenwood-branded pack, so users seeking original packaging or manufacturer warranty may prefer the OEM option.
• Source documentation is focused on compatibility and build rather than detailed cycle-life figures.

Specifications

Product	BKCLPB42-4000-D replacement battery
Compatible Models	Kenwood TH-F6A, TH-F7E
OEM Equivalent	Kenwood PB-42L
Chemistry	7.4 V Li-ion
Capacity	4000 mAh
Construction	Densely constructed with thick shell casing
Capacity Retention	Maintain high capacity for 12 months from shipment

Our Verdict

The BKCLPB42-4000-D is a practical, value-conscious replacement for Kenwood TH-F6A and TH-F7E users who need longer runtime and a sturdy housing. It matches the OEM PB-42L form and delivers a high 4000 mAh capacity using A GRADE cells, making it a sensible buy for field operators and radio owners who want dependable performance without paying for factory branding.

Frequently Asked Questions

Will this battery fit my Kenwood TH-F6A?
Yes, it is listed to fit the Kenwood TH-F6A and is intended as a direct replacement for PB-42L.

How long will the battery hold its capacity?
The manufacturer states it will maintain high capacity for 12 months from the date of shipment.

Is this an OEM Kenwood battery?
No, it is a compatible replacement built with A GRADE cells and tested to match the OEM form and fit rather than being a factory-branded pack.