Kastar 2-Pack NP-FV100 Battery and LTD2 USB Charger - Dual Charge

In this review the Kastar 2-Pack NP-FV100 Battery and LTD2 USB Charger is evaluated for users who need long runtime and flexible charging for legacy Sony camcorders. The bottom line: this kit pairs two high-capacity 7.2V lithium-ion replacement batteries (5750mAh each) with a dual-bay USB charger that can handle two cells at once and swap plates for different battery fits, making it a practical backup power solution for field shooters and archivists working with compatible Sony models. The review highlights real-world runtime, charging convenience, and where this pack makes sense.

Key Features

• High capacity batteries: The 5750mAh, 7.2V lithium-ion cells extend run time significantly compared with standard OEM batteries, reducing the need to swap in the middle of shoots.
• Dual charging bays: The LTD2 charger can charge two batteries simultaneously at 800mA each, which shortens overall downtime between shoots.
• Interchangeable plate: The charger allows swapping the charging plate to accommodate different compatible battery shapes, increasing utility for mixed batteries.
• Multiple input options: Micro-USB and Type-C inputs plus a supplied Micro USB cable let you power the charger from common USB power banks or wall adapters for on-location charging.
• Smart LED indicators: The intelligent LED display reports charging status and gives a quick visual read of battery capacity while charging.
• Portable power: The charger accepts 5V 2-3A input and is compact enough to carry in a kit bag for travel or fieldwork.

Who It's For

This kit is aimed at photographers and videographers who still use Sony camcorders or legacy models that accept NP-FV series batteries and need reliable spare power that lasts through long shoots or events. The combination of two high-capacity batteries with a dual USB charger is useful for documentary shooters, event videographers, and anyone maintaining older Sony equipment.

Users who rely on the latest mirrorless cameras or who need OEM-branded batteries for warranty reasons should look elsewhere; this pack is intended as a high-capacity third-party replacement and charging solution for compatible Sony devices rather than a manufacturer original accessory.

Pros & Cons

Pros

• Long battery life from 5750mAh cells reduces changeovers during extended recording.
• Can charge two batteries at once, saving time between shoots and minimizing downtime.
• USB power input and included Micro USB cable enable charging from power banks and common adapters in the field.
• LED indicators provide clear status so users know when batteries are ready.

Cons

• Charger output is modest at 800mA per bay, so full recharge times are not the fastest available.
• This is a third-party replacement; users seeking original manufacturer accessories may prefer OEM branded batteries.

Specifications

Battery Type	Lithium-Ion
Voltage	7.2V
Capacity	5750mAh
Charger Input	5V 2-3A (USB)
Charger Output	8.4V 800mA (x1) or 800mA (x2)
Compatibility	Sony NP-FV30 NP-FV50 NP-FV70 NP-FV100 and listed Sony chargers/cameras

Our Verdict

The Kastar 2-Pack NP-FV100 Battery and LTD2 USB Charger is a solid value for anyone needing reliable, extended power for compatible Sony camcorders. With high-capacity 5750mAh batteries, dual charging and USB power convenience, it replaces multiple single-use swaps and keeps you shooting longer; it is best for users who accept third-party accessories and do not require the fastest recharge rates.

Frequently Asked Questions

Are these batteries compatible with my Sony camcorder?
They are compatible with a long list of Sony NP-FV series models and many Sony camcorders that accept NP-FV30/50/70/100 batteries; use Ctrl+F on the product page to find specific models.

Can I charge two batteries at the same time?
Yes, the LTD2 charger can charge two batteries simultaneously at 800mA each using the dual bays.

What power sources can I use to charge the batteries?
The charger accepts 5V USB input via Micro-USB or Type-C, so you can use wall adapters, laptops, or power banks; a Micro USB cable is included.