Kastar 4-Pack 2650mAh Lithium-Ion Batteries with LTD2 USB Charger

In this review the Kastar pack is evaluated for users who need reliable spare power for older Sony camcorders and compatible models. The bottom line: this 4-pack replaces NP-FV50/70/100 batteries and includes an LTD2 USB dual charger that can charge two batteries simultaneously, making it a practical kit for event shooters, travel videographers, and anyone who needs a compact multi-battery solution. The review focuses on battery capacity, charging convenience, and compatibility with the camera list provided by the manufacturer.

Key Features

• Battery Capacity: Each 2650mAh lithium-ion cell extends runtime compared with many stock cells, reducing downtime between shoots.
• Dual Charging: The LTD2 USB charger charges two batteries at once, which speeds turnaround for day-long shoots or multi-battery workflows.
• Multiple Inputs: Micro-USB and Type-C input options plus a Micro USB cable let users power the charger from power banks, phone adapters, or USB power supplies.
• Intelligent LED Display: The LED indicators show charge status and relative battery capacity so the user can prioritize which cells to use first.
• Swapable Plate: The charger plate can be changed to accept different battery plates, adding flexibility for different battery models.

Who It's For

This kit is aimed at shooters who own older Sony camcorders or compatible models that use NP-FV50, NP-FV70 or NP-FV100 style batteries and want a convenient, portable way to keep multiple spares charged. It is useful for documentary shooters, wedding videographers, or travel users who need several full batteries and a USB-charge option when wall power is limited.

It is not targeted at users who require manufacturer-original batteries for warranty or long-term service guarantees, nor at those who need ultra-high drain or OEM-specific smart-battery features found on some newer proprietary packs.

Pros & Cons

Pros

• Good capacity at 2650mAh gives noticeably longer runtime than many replacement packs.
• Dual-port charger lets two batteries charge simultaneously for faster turnaround.
• USB power input plus included Micro USB cable makes charging from modern power sources easy.
• Compatible with a wide list of Sony camcorders and the BC-TRV style chargers, increasing its versatility.

Cons

• The kit is a third-party solution, so users seeking OEM-branded batteries may prefer original manufacturer packs.
• Charger output is limited to 800mA per bay, so charging is not the fastest available for larger capacity cells.

Specifications

Our Verdict

The Kastar 4-pack with LTD2 USB charger is a practical, value-focused kit for owners of compatible Sony camcorders who need multiple spares and flexible USB charging. The 2650mAh cells and dual-charge convenience make it a sensible buy for event and travel shooters who prioritize runtime and portability over OEM branding.

Frequently Asked Questions

Will these batteries work in my NP-FV100 camera?
Yes, the pack is listed compatible with NP-FV100 style batteries and the charger accepts those plates when configured accordingly.

Can the charger be powered from a power bank?
Yes, the charger accepts 5V USB input and can be powered from a power bank or USB adapter using the included Micro USB cable or a Type-C cable.

How many batteries can charge at once?
The LTD2 USB charger can charge two batteries simultaneously with LED indicators showing charge status.