Kastar 4-Pack BN-V428 Replacement Batteries with AC Wall Charger

In this review the Kastar 4-Pack BN-V428 battery bundle is judged for owners of older JVC camcorders who need reliable extended runtime and a simple charging solution. The package pairs four 7.4V 3300mAh lithium-ion batteries with a compact AC wall charger, making it an attractive option for anyone shooting long events, running extended interviews, or keeping a camera ready for travel. The single biggest reason to buy is straightforward: it delivers a substantial capacity increase and a ready-to-use charger so users can swap batteries without interrupting recording.

Key Features

• High capacity: Each 7.4V 3300mAh battery offers longer run times than many stock cells, reducing downtime between swaps for continuous shoots.
• Multi-pack convenience: Four batteries in the box let a solo operator or small crew maintain power across a whole day of shooting without hunting for outlets.
• Compatible with many JVC models: The pack lists wide compatibility with BN-V408, BN-V416, BN-V428, BN-V438 and related series and numerous GR-D and GR-DV camcorders, so it fits legacy equipment commonly still in use.
• Compact AC charger: The included charger has a foldable flat pin and supports AC 100~240V 50~60Hz, which keeps it easy to store and useful in varied mains environments.
• Simple charge indicator: An LED shows red while charging and green when standby or full, making it easy to confirm battery status at a glance.

Who It's For

This kit is aimed at videographers and hobbyists who own compatible JVC camcorders and need dependable spare batteries for events, travel, or location shoots. The 3300mAh cells are a practical upgrade for older cameras that drain standard batteries quickly, and the four-pack format supports lengthy sessions or multicamera setups.

Those who should look elsewhere include operators who require manufacturer original branded batteries for warranty reasons or cameras that demand proprietary charging docks included with some models. Also, if you need a car adapter or European plug included, note this package does not include those accessories.

Pros & Cons

Pros

• High capacity batteries provide noticeably longer runtime versus many original cells.
• Four-battery bundle reduces interruptions and covers full-day shoots for single operators.
• Charger handles 100~240V input and has a foldable flat pin for compact storage and travel.

Cons

• Package does not include a car adapter or European plug, which may be inconvenient for some travel scenarios.

Specifications

Battery Type	Lithium-Ion
Voltage	7.4V
Capacity	3300mAh
Charger Input	AC 100~240V 50~60Hz
Charger Output	DC 8.4V 600mA
Indicator	LED: Red charging, Green full/standby
Package Contents	4 batteries + 1 AC wall charger

Our Verdict

The Kastar 4-Pack BN-V428 battery kit is a practical, cost-effective choice for owners of compatible JVC camcorders who need extra runtime and a compact charger. With four 3300mAh cells and a travel-friendly AC charger, it delivers real value for event shooters and solo videographers, though travelers seeking a car adapter or region-specific plug will need to source that separately.

Frequently Asked Questions

Are these batteries compatible with BN-V428 camcorders?
Yes. The pack is listed as compatible with BN-V428 and related BN-V4xx and BN-V8xx series used in many JVC GR-D and GR-DV models.

Does the charger work on international voltages?
Yes. The charger accepts AC 100~240V 50~60Hz input, but the package does not include a car adapter or European plug adapter.

How do I know when a battery is fully charged?
The included charger uses an LED indicator: red while charging and green when the battery is in standby or full charge.