Kastar BN-VG138 Battery 2-Pack Replacement - High Capacity Backup

In this review the Kastar BN-VG138 Battery 2-Pack is judged as a practical, budget-conscious replacement for JVC Everio owners who need longer run times. The reviewer found the main selling point to be the high capacity 4900mAh cells that extend recording time compared with many older replacement packs, and the two-battery pack format which is handy for day-long shoots. The review covers compatibility with many JVC BN-VG series models, the safety protections built into the pack, and who should consider this as a primary or backup power option.

Key Features

• High Capacity: The 4900mAh lithium-ion capacity provides noticeably longer run time for video recording and reduces the need to swap batteries frequently.
• Wide Compatibility: Designed to replace a range of JVC BN-VG series batteries and LY37166-002B/C, so it works with many Everio models without modification.
• Built-in Protection: Over-charge, over-discharge, over-voltage, over-current, and over-heating circuits are included to protect the camera and battery.
• Cost Effective: A two-pack format gives an immediate spare battery and helps avoid repeated purchases of low-quality single cells.
• Lithium-ion Chemistry: The 3.7V lithium-ion cells offer a common chemistry that balances energy density and weight for camera use.

Who It's For

The Kastar two-pack is aimed at owners of older JVC Everio camcorders who need reliable, longer-lasting replacement batteries for shoots, travel, or archival recording sessions. It is particularly useful for run-and-gun recording where swapping batteries mid-shoot is disruptive.

Photographers or videographers who require manufacturer service, original brand batteries with extended warranty support, or who need batteries with unusual voltages should consider OEM options instead. Also, those needing single-cell ultra-light setups might prefer a single lower-capacity pack.

Pros & Cons

Pros

• Two-pack provides a ready spare so users can double run time without recharging.
• High 4900mAh capacity gives longer overall shooting time compared with many replacement cells.
• Safety protections and compliance with UL1642 and CE give reasonable assurance for everyday camera use.

Cons

• Not an OEM JVC battery, so those who prefer factory-branded cells may look elsewhere.
• Bulky two-pack may be more than needed for light users who only require short shoots.

Specifications

Our Verdict

The Kastar BN-VG138 Battery 2-Pack is a solid value for Everio owners who want extended recording time and a dependable spare battery. With 4900mAh cells and built-in protection circuits, it is a good choice as a primary replacement or travel backup for older JVC camcorders, offering practical savings without sacrificing safety.

Frequently Asked Questions

Will these batteries fit my Everio camcorder?
Yes, the pack is compatible with many JVC Everio models listed in the compatibility notes, including GZ-E series that accept BN-VG107/108/114/121/138 style batteries.

Are these batteries safe to use in my camera?
They use lithium-ion cells that meet UL1642 and CE standards and include over-charge, over-discharge, over-voltage, over-current, and over-heating protection circuits for safe everyday use.

How many batteries are included?
The package includes two replacement batteries so you have a ready spare for extended shooting sessions.