Kastar 2-Pack Battery and LTD2 USB Charger Replacement for JVC GR-D370

In this review the reviewer examines the Kastar 2-Pack Battery and LTD2 USB Charger replacement kit for older JVC GR-D series camcorders, aimed at photographers and videographers who need dependable spare power on shoots or travel. The bottom line is that this kit pairs two 2400mAh lithium-ion batteries with a versatile dual USB charger that can power and monitor two batteries at once, making it a practical, space-saving solution for users who want extra runtime without hunting down obsolete factory parts.

Key Features

• High capacity batteries: Each 2400mAh 7.4V battery provides extended runtime so users can record longer between swaps.
• Dual charging: The charger accepts two batteries simultaneously, which keeps spare cells ready without needing separate chargers.
• Interchangeable plate: The charger plate can be changed to fit different compatible battery models, adding flexibility for mixed kits.
• Multiple input options: With Micro-USB and Type-C input plus a supplied Micro USB cable, the charger works with common power banks and phone chargers on location.
• Intelligent LED display: Built-in LEDs show charging status and relative battery capacity so you can see which cell is ready at a glance.
• Compact power draw: The charger runs from a modest 5V 2-3A input and provides 8.4V outputs, suitable for USB power sources.

Who It's For

This kit is best for owners of the JVC GR-D360/366/368/370/371/372 and related GR-D series camcorders who need reliable replacement batteries and a flexible charger for field use. It suits hobbyists, event shooters, and anyone who travels and prefers carrying a single charger that handles two batteries.

It is less appropriate for users requiring OEM-branded accessories for professional rental houses or those needing higher-capacity industrial chargers with rapid-charge profiles; such users should look for dedicated pro chargers. Also, if a camera requires a proprietary external power adapter rather than battery swaps, this kit will not address that need.

Pros & Cons

Pros

• Two full-size replacement batteries give long runtime and reduce interruptions during shoots.
• Dual charger design saves space and consolidates charging with one USB power source.
• LED indicators and interchangeable plate add usability across compatible models.

Cons

• Charging speed is modest when using single USB power sources, so tops-up can take time.

Specifications

Battery Type	Lithium-Ion
Battery Voltage	7.4V
Battery Capacity	2400mAh
Charger Input	5V 2-3A (15W)
Charger Output	8.4V 800mA x1 or 800mA x2
Inputs Supported	Micro-USB and Type-C (comes with Micro USB cable)

Our Verdict

The Kastar 2-Pack Battery and LTD2 USB Charger is a practical, value-oriented replacement option for GR-D series camcorder owners who need reliable spare power and a compact dual charger. It combines generous 2400mAh cells with a flexible USB-powered charger and clear LED indicators, making it a smart buy for casual and semi-pro users who prioritize convenience over fastest possible charging.

Frequently Asked Questions

Will these batteries fit my GR-D370 camcorder?
Yes; the kit is compatible with the listed JVC GR-D370 series models and the specified BN-VF707/714/733 battery models.

Does the charger include both Micro-USB and Type-C cables?
The kit comes with a Micro USB cable and the charger supports both Micro-USB and Type-C input for power.

Can the charger charge two batteries at full speed?
The charger can charge two batteries simultaneously but the output is split, so charge times will be longer than charging a single battery at the full output.