Kastar 3-Pack Battery Replacement for RCA PRO-845 PRO847 PRO-847

In this review the Kastar 3-Pack battery replacement is evaluated for camcorder owners who need reliable runtime and a cost-effective spare. The bottom line: this pack is best for users of compatible RCA and Pentax camcorders who want a straightforward, high capacity Ni-MH option that extends record time without proprietary hassles. The reviewer found the most important reason to buy is the high capacity 2650mAh cells that deliver noticeably longer runtime than typical replacements, making it a practical choice for longer shoots and travel.

Key Features

• High Capacity: The 2650mAh Ni-MH cells provide extended recording time compared with lower capacity replacements, so users spend less time swapping batteries during sessions.
• Wide Compatibility: The pack lists compatibility with many RCA and Pentax battery and camcorder models, so it fits a broad range of older consumer camcorders without modification.
• Cycle Life: Kastar reports an additive to the cathode that helps limit degradation and can extend useful life up to 1000 cycles, reducing long-term replacement costs.
• Low Self-Discharge: An embedded seal structure reduces self-discharge so these batteries hold charge longer during storage between uses.
• Value Pack: The three-pack format supplies spares for extended shoots or backup replacements, useful for field work or multi-day events.

Who It's For

This replacement pack is aimed at hobbyists, independent videographers, and owners of compatible RCA or Pentax camcorders who need dependable, longer runtime without buying brand-specific cells. The 3-pack format is helpful for anyone who records for extended periods or wants an immediate spare while traveling.

It is less suited for users who require official OEM batteries for warranty reasons or for very recent camcorder models not listed among the compatible devices. If a camera requires a proprietary smart battery with data contacts, the generic Ni-MH pack may not be appropriate.

Pros & Cons

Pros

• Higher 2650mAh capacity delivers longer runtime compared to many aftermarket cells.
• Compatibility with many RCA and Pentax models simplifies replacement for older camcorders.
• Low self-discharge helps batteries hold charge during storage between uses.
• Three batteries in one package offer good value and immediate spares for multi-day shoots.

Cons

• As Ni-MH cells, they require a compatible charger and do not provide smart battery communications some OEM packs include.
• Not suitable if the device requires an OEM battery for warranty or device-specific features.

Specifications

Battery Type	Ni-MH
Voltage	6.0V
Capacity	2650mAh
Pack Contents	3-Pack batteries
Cycle Life	Up to 1000 cycles (manufacturer statement)
Compatibility	Selected RCA and Pentax camcorder and battery models

Our Verdict

The Kastar 3-Pack is a sensible, budget-conscious replacement for older RCA and Pentax camcorders where longer runtime and spares are the priority. With 2650mAh capacity, low self-discharge, and a three-pack bundle, it represents solid value for independent shooters who can accept a standard Ni-MH solution rather than OEM smart batteries.

Frequently Asked Questions

Will these batteries fit my RCA camcorder?
They are compatible with a long list of RCA models referenced by the manufacturer; check the camcorder model against the compatibility list on the product page.

Do these batteries require a special charger?
They use standard Ni-MH charging; use a charger rated for 6.0V Ni-MH packs and follow safe charging practices.

How long will they hold charge in storage?
The low self-discharge design helps them retain charge longer than typical Ni-MH cells, so they are a good option for occasional use and backup storage.