Kastar 2-Pack SSL-JVC50 Battery and CH04 Dual Fast Charger - Long Life

Our review of the Kastar 2-Pack SSL-JVC50 battery and CH04 LCD dual fast charger finds it aimed at run-and-gun camcorder users who need reliable spare power and a flexible charger. The kit pairs two 7.4V 5200mAh lithium-ion replacement batteries with a dual-slot LCD charger that accepts 6.8V to 16.8V batteries, so the biggest reason to buy is uninterrupted shooting time combined with a smart charging solution that protects battery life. For those using compatible JVC GY series cameras, this package delivers predictable runtime and straightforward charging without mystery indicators.

Key Features

• High capacity batteries: Each 5200mAh 7.4V lithium-ion cell extends run time for long shoots and reduces swap frequency during events.
• Dual fast charging: The CH04 LCD charger fills two batteries simultaneously to minimize downtime between takes.
• Wide input range: 110-240V worldwide input voltage makes the charger usable on location with differing mains voltages.
• Intelligent MCU control: Automatic voltage identification and smart charging modes prevent overcharge and help preserve battery lifespan.
• CC/CV charge profile: Constant-current/constant-voltage charging with pre-charge and 0V activation safely revives deeply discharged Li-ion packs.

Who It's For

This kit is best for independent videographers, ENG shooters, and rental houses using JVC GY series camcorders that list compatibility with SSL-JVC50-style batteries. The dual-charger plus two batteries suits full-day shoots, multi-camera setups, and anyone who prefers carrying charged spares rather than relying on a single pack.

It is not ideal for users who need manufacturer-branded OEM batteries for warranty reasons or for cameras outside the listed compatibility range. If a camera requires a different voltage or a proprietary form factor, shoppers should choose a model-specific OEM power solution.

Pros & Cons

Pros

• Two high-capacity 5200mAh batteries deliver longer on-camera runtime compared with smaller packs.
• Dual fast charger with LCD shows charging status and battery capacity for easy monitoring.
• Wide 110-240V input and 6.8V-16.8V battery support make the charger flexible for many shoots.

Cons

• Aftermarket replacement batteries may not carry the original camera maker warranty that some buyers expect.

Specifications

Our Verdict

The Kastar 2-Pack SSL-JVC50 battery and CH04 dual fast charger is a practical, value-oriented option for JVC GY-series camera users who need dependable spare power and a smart charger. It balances capacity, intelligent charging, and global input compatibility, making it a sensible purchase for shooters who want more uptime and safe battery care without paying OEM premiums.

Frequently Asked Questions

Will these batteries fit my JVC GY-HM250?
Yes, the kit lists compatibility with JVC GY-HM250 and several other GY-series models that accept SSL-JVC50-style batteries.

Can the charger handle two batteries at once?
Yes, the CH04 LCD dual charger can charge two batteries simultaneously and displays each battery's charging status and capacity.

Is the charger safe for Li-ion cells?
Yes, it uses CC/CV charging with pre-charge and 0V activation plus MCU control to prevent overcharge and extend battery life.