Kastar 3-Pack Battery and LTD2 USB Charger Replacement for JVC GR-D370

In this review the focus is on the Kastar 3-Pack Battery and LTD2 USB Charger replacement kit, a practical bundle aimed at owners of older JVC GR-D camcorders who need reliable spare power. The bottom line: this kit is for users who value extended run time and flexible charging options - it supplies three 7.4V 2400mAh Lithium-Ion batteries and a dual-bay USB charger that can handle two cells at once, making it easier to keep a camcorder working through a long shoot or while traveling.

Key Features

• High capacity batteries: Each 2400mAh battery provides longer runtime than many original packs, so users get more continuous recording between swaps.
• Dual charging: The LTD2 charger can charge two batteries at the same time, reducing downtime when multiple spares are used during a shoot.
• Adjustable charge plate: A changeable plate lets the charger accept different battery plate types, increasing compatibility with the listed JVC battery models.
• USB power inputs: Multiple charging options include Micro-USB and Type-C inputs and the charger accepts a 5V 2-3A source, so it works with common power banks and adapters.
• Intelligent LED indicators: The charger shows charging status and relative battery capacity via LED, making it straightforward to see when packs are ready.

Who It's For

The kit is best for owners of JVC GR-D series camcorders who need a cost-effective way to keep multiple batteries charged and on hand, particularly event videographers, hobbyists, or anyone restoring older camcorder gear. The inclusion of both Micro-USB and Type-C support means it suits travelers who rely on portable chargers and limited wall access.

It is less appropriate for cinematographers who require OEM-certified batteries with camera maker warranty coverage or for users of modern cameras that use different battery chemistries and voltages; those users should seek manufacturer-specific packs or higher-capacity professional solutions.

Pros & Cons

Pros

• Three replacement 7.4V 2400mAh Lithium-Ion batteries provide extended runtime compared with many older stock packs.
• Charger supports two batteries at once and can switch plates to accept various compatible battery types.
• USB inputs and included Micro USB cable make it convenient to power the charger from modern adapters and power banks.

Cons

• The kit is a third-party replacement and not an original JVC-branded battery, which may concern buyers seeking OEM parts.
• Charger output is limited to 800mA per bay, so charging multiple depleted batteries can take several hours.

Specifications

Battery Type	Lithium-Ion
Battery Voltage	7.4V
Battery Capacity	2400mAh
Charger Input	5V 2-3A (USB)
Charger Output	8.4V 800mA (x1) or 800mA (x2)
Charge Bays	2 simultaneous batteries
Included Cable	Micro-USB cable (Type-C input also supported)

Our Verdict

The Kastar 3-Pack Battery and LTD2 USB Charger is a practical, budget-friendly option for JVC GR-D series owners who need dependable spare power and flexible charging on the go. It offers good value for hobbyists and event shooters who need multiple batteries and USB charging; those who require OEM warranty coverage or the fastest possible charge speeds should consider manufacturer replacements.

Frequently Asked Questions

Will these batteries work in my GR-D370 camcorder?
Yes, the pack lists compatibility with the GR-D370 models and the kit is designed to match the JVC BN-VF707/714/733 family used in those cameras.

Can I charge two batteries at the same time?
Yes, the LTD2 charger supports charging two batteries simultaneously with an 800mA output per bay.

What power sources can I use to charge the batteries?
The charger accepts a 5V USB input at 2-3A and supports Micro-USB and Type-C connections, so wall adapters and power banks are suitable.