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JVC BNVG121US Camcorder Battery Replacement
JVC BNVG121US Camcorder Battery Replacement
JVC BNVG121US Camcorder Battery Replacement
JVC

JVC BNVG121US Camcorder Battery Replacement

★★★★★4.4 (301 reviews)
3300mAh

A high-capacity 3300mAh replacement battery that keeps your JVC camcorder recording longer between charges.

$21.99*
✓ In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Kastar BN-VG121 replacement battery is designed as a direct substitute for JVC's BN-VG107, BN-VG114, BN-VG121, and BN-VG138 camcorder batteries, providing broad compatibility across JVC's GZ-E, GZ-EX, GZ-GX, GZ-HD, GZ-HM, GZ-MS, GZ-MG, and GZ-G series camcorders. With a rated capacity of 3300mAh at 3.7 volts, it offers a substantial increase over the standard BN-VG121's approximately 2100mAh, giving you more recording time between charges—a practical advantage for events, travel, and extended shooting sessions.

The lithium-ion cell provides stable voltage delivery throughout its discharge cycle, helping maintain consistent camcorder performance until the battery is depleted. It fits directly into the existing battery compartment with no modifications required and charges using your original JVC charger or any compatible third-party charger. While only one battery is included in the package, pairing two of these higher-capacity cells gives videographers a reliable power solution for full-day shoots without dependence on wall power.

Key Features

Battery Replacement for JVC BN-VG107 BN-VG114 BN-VG121 BN-VG138 Battery

Battery Type: Lithium-Ion; Battery Voltage: 3.7V

Battery Capacity: 3300mAh

Package Includes: 1 Battery

Compatible with: JVC BN-VG107U BN-VG107US BN-VG114U BN-VG114US BN-VG121U BN-VG121US BN-VG138U BN-VG138US

Specifications

Brand
Kastar (for JVC)
Model
BNVG121US
Battery Type
Lithium-Ion
Voltage
3.7V
Capacity
3300mAh
Replaces
BN-VG107, BN-VG114, BN-VG121, BN-VG138
Compatible Series
JVC GZ-E, GZ-EX, GZ-GX, GZ-HD, GZ-HM, GZ-MS, GZ-MG, GZ-G
Package Contents
1x Battery

Pros & Cons

👍 Pros

  • 3300mAh capacity exceeds the original BN-VG121 rating for extended recording sessions
  • Compatible across multiple JVC camcorder series and replaces four different JVC battery models
  • Lithium-ion chemistry provides consistent voltage output throughout the discharge cycle
  • Drop-in replacement that works with existing JVC chargers without modification

👎 Cons

  • Only one battery is included in the package, with no charger provided
  • Third-party replacement batteries may have inconsistent quality control compared to genuine JVC cells
  • 3.7V single-cell design means total watt-hour capacity is modest despite the high mAh rating
  • No fuel gauge indicator on the battery itself—remaining charge is only visible through the camcorder display

Frequently Asked Questions

It is compatible with JVC GZ-E, GZ-EX, GZ-GX, GZ-HD, GZ-HM, GZ-MS, GZ-MG, and GZ-G series camcorders that use the BN-VG107, BN-VG114, BN-VG121, or BN-VG138 battery type.
The original BN-VG121 is rated at approximately 2100mAh. This replacement battery's 3300mAh capacity is significantly higher, which translates to extended recording time per charge.
Yes. This replacement battery is designed to be fully compatible with the original JVC charger and can also be used with compatible third-party chargers.
No. The package includes only the battery itself. You will need to use your existing JVC charger or purchase a compatible charger separately.

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