4200mAh 3-Pack Lithium-Ion Batteries with Smart USB Charger - Portable

In this review the Kastar 3-Pack Battery and Smart USB Charger earns a recommendation for camcorder owners who need reliable spares and a compact charging solution. The single biggest reason to buy is the combination of high capacity 4200mAh lithium-ion batteries with an intelligent USB charger that shows charge status, which turns a handful of older Panasonic-compatible models into dependable runtime backups for shoots and travel. The kit is notable for supporting both Micro-USB and Type-C input and for including a Micro USB cable, so it is ready to use with common chargers and power banks.

Key Features

• High capacity: Each 4200mAh lithium-ion cell delivers extended run time compared with many OEM units, reducing interruptions during filming or long shoots.
• Smart USB charger: The charger has an intelligent LED display that indicates charging status and battery capacity, so it is easy to see when batteries are ready.
• Multiple input options: The charger accepts both Micro-USB and Type-C input, offering flexibility when charging from a laptop, wall adapter, or portable power bank.
• Compact and portable: The small charger and three batteries are easy to carry in a camera bag for fieldwork and travel without added bulk.
• Broad compatibility: Designed to replace Panasonic BP-12/BP-15/BP-17/BP-18 and related HHR and PV models, it fits a long list of older camcorders for which replacements are otherwise hard to find.

Who It's For

This pack is aimed at hobbyist and prosumer videographers who own Panasonic camcorders listed in the compatibility notes and want affordable, higher-capacity spares to extend shooting time. It is also useful for anyone who prefers carrying a single compact charger that can be powered from USB outlets in cars, hotels, or portable battery packs.

People using very new camera systems or proprietary battery formats should look elsewhere, since this kit is specifically a replacement for the BP and HHR series and compatible Panasonic PV models. If you need an AC-only fast charger or professional multi-bay charging with independent cell balancing, a dedicated pro charger would be a better fit.

Pros & Cons

Pros

• Higher 4200mAh capacity per battery gives noticeably longer run time than many stock cells.
• Includes a smart USB dual charger with LED status indicators for clear charging feedback.
• Multiple input options and a supplied Micro USB cable make it convenient to charge on the go.
• Three batteries in the package provide real backup for extended shoots without searching for replacements.

Cons

• The charger output is 6.0V at 800mA, so charging speed is modest compared with higher-power dedicated chargers.

Specifications

Battery Type	Lithium-Ion
Battery Voltage	6.0V
Battery Capacity	4200mAh
Charger Input	5V 2-3A (15W)
Charger Output	6.0V 800mA
Package Contents	3-Pack Batteries and 1 Smart USB Charger (Micro USB cable included)

Our Verdict

This Kastar 3-pack is a practical value purchase for owners of compatible Panasonic camcorders who need dependable extra runtime and a portable charging option. The 4200mAh cells paired with an LED smart USB charger make it easy to keep multiple batteries topped up while traveling, and the included cable and dual input support add convenience for field use.

Frequently Asked Questions

Are these batteries compatible with Panasonic BP-17?
Yes, the pack lists compatibility with BP-17 and several HHR and PV series models, making it suitable as a replacement for those cameras.

Does the charger include cables for both Micro-USB and Type-C?
The package includes a Micro USB cable and the charger accepts both Micro-USB and Type-C inputs, so users can supply a Type-C cable if needed.

How fast do these batteries charge?
The charger input supports 5V 2-3A, but the charger output is 6.0V at 800mA, so charging is reliable but not rapid compared with high-power chargers.