Kastar 2-Pack Battery and Smart USB Charger Compatible with RCA CC-637

In this review the reviewer looks at the Kastar 2-Pack Battery and Smart USB Charger as a practical replacement power option for older RCA and Pentax camcorders. The bottom line is simple: it is best for shooters who need a compact, multiple-charge solution with predictable runtime thanks to the 2650mAh Ni-MH batteries and a smart charger that reports status via an LED. The package bundles two batteries and a charger with both Micro-USB and Type-C input options, which makes it convenient for travel and mixed-device households.

Key Features

• Battery Capacity: Each 6.0V battery offers 2650mAh capacity to extend run time over older stock cells during field recording or long shoots.
• Smart USB Charger: The included charger uses an intelligent LED indicator that shows charging status and battery capacity so the user can see when batteries are ready.
• Multiple Input Options: The charger accepts Micro-USB and Type-C input and includes a Micro USB cable, making it easy to power from common adapters or power banks.
• Portable Pack: The 2-pack format gives a ready spare battery plus a charger in one kit, which is convenient for travel or extended sessions away from mains power.
• Standard Charging Rate: The charger outputs 6.0V at 800mA which provides steady charging compatible with the specified battery chemistry.

Who It's For

This kit is for owners of compatible RCA and Pentax camcorders who want a direct replacement for the original battery models listed, or for hobbyists who need an affordable backup battery system. It is also a good fit for photographers who like the convenience of USB-powered chargers and travel frequently with mixed charging cables.

If a user requires the fastest possible recharge times or lithium-based higher energy cells, they should look elsewhere; this kit uses Ni-MH chemistry and charges at a moderate 800mA output. Also, those who need a charger with bundled Type-C cable only should note the package includes a Micro USB cable alongside Type-C input support, not a dedicated Type-C cable in the box.

Pros & Cons

Pros

• Two batteries plus a single smart charger provide immediate backup power and reduce downtime during shoots.
• The intelligent LED USB charger makes it clear when batteries are charging or full, helping avoid overcharging.
• Dual input support for Micro-USB and Type-C increases compatibility with modern chargers and power banks.

Cons

• Ni-MH chemistry offers reliable performance but lower energy density than some modern lithium options.
• The package includes a Micro USB cable only, so users relying solely on Type-C cables may need to provide their own.

Specifications

Battery Type	Ni-MH
Battery Voltage	6.0V
Battery Capacity	2650mAh
Charger Input	5V 2-3A (15W)
Charger Output	6.0V 800mA
Package Contents	2 Batteries and 1 Smart USB Charger (Micro USB cable included)
Compatibility	Compatible with listed RCA and Pentax battery and camcorder models

Our Verdict

The Kastar 2-Pack Battery and Smart USB Charger is a practical, value-oriented option for users of compatible RCA and Pentax camcorders who need reliable backup power and simple USB charging. Its 2650mAh Ni-MH cells and LED smart charger give predictable runtime and visible charge status, making it a sensible purchase for travel shooters and hobbyists who prefer plug-and-play battery solutions.

Frequently Asked Questions

Are these batteries compatible with my RCA camcorder model?
They are compatible with many RCA models listed in the product description; use the model list to confirm your specific camcorder matches one of the supported model numbers.

Does the charger include a Type-C cable?
The package includes a Micro USB cable and the charger accepts Type-C input, but a Type-C cable is not provided in the box.

Will these replace original manufacturer batteries?
Yes, they are intended as compatible replacements for the specified battery model numbers and deliver steady charging via the included smart charger.