Kastar 4-Pack NP-FV100 Battery and LTD2 USB Charger - Dual Charge Kit

In this review the Kastar 4-Pack NP-FV100 battery and LTD2 USB charger kit is evaluated for users who need long run times and flexible charging options for older Sony camcorders. The bottom line: this kit pairs four high-capacity 5750mAh lithium-ion replacements with a compact dual USB charger so shooters can keep two batteries charging at once while carrying spares. It is best for videographers working on location or anyone maintaining a camera fleet that uses NP-FV series batteries and wants a portable, USB-powered charging option.

Key Features

• High capacity batteries: Each 5750mAh lithium-ion cell provides extended runtime so cameras run longer between swaps.
• Dual battery charging: The LTD2 charger can charge two batteries simultaneously, cutting downtime when multiple cells need replenishing.
• Interchangeable plate: The charger plate can be changed to accommodate different compatible battery plates for flexibility across models.
• USB power input: The charger accepts Micro-USB and Type-C inputs and includes a Micro USB cable, making it simple to power from power banks or USB wall adapters.
• Intelligent LED display: Built-in LED indicators show charging status and estimated battery capacity so users can monitor progress at a glance.
• Portable power profile: With a 5V 2-3A input and modest 15W draw, the unit is easy to carry for field shoots and travel.

Who It's For

This kit is aimed at owners of Sony camcorders that accept NP-FV series batteries who need an economical way to keep several cells ready without relying on legacy AC chargers. It suits event videographers, independent filmmakers, and backup gear managers who value capacity and the convenience of USB charging.

Those who should look elsewhere include users who require original-brand fast-charging through specific AC chargers unique to a camera model, or anyone needing slimmer low-capacity batteries for ultra-light setups; this package prioritizes runtime and versatility over minimal weight.

Pros & Cons

Pros

• High 5750mAh capacity gives noticeably longer runtime than many replacement cells.
• Dual charging saves time when multiple batteries must be replenished between shoots.
• USB input options and included Micro USB cable make powering the charger convenient on the road.

Cons

• The kit is built for compatibility and portability rather than the fastest possible charging speeds compared with some AC-only chargers.

Specifications

Battery Type	Lithium-Ion
Battery Voltage	7.2V
Battery Capacity	5750mAh
Charger Input	5V 2-3A (15W)
Charger Output	8.4V 800mA (x1) or 800mA (x2)
Charging Ports	Micro-USB and Type-C input (Micro USB cable included)
Compatibility	Sony NP-FV30/50/70/100 series and listed Sony charger models

Our Verdict

The Kastar 4-Pack with LTD2 dual USB charger is a practical choice for anyone keeping older Sony camcorders active without relying on original AC chargers. It delivers strong runtime from 5750mAh cells, the convenience of dual charging, and flexible USB power options, making it good value for field shooters who need reliable spares and simple charging on the go.

Frequently Asked Questions

Will these batteries fit my Sony NP-FV camera?
They are designed to be compatible with NP-FV30/50/70/100 series models and the compatible Sony chargers and camera models listed by the manufacturer.

Can the charger charge two batteries at the same time?
Yes, the LTD2 charger supports charging two batteries simultaneously with independent LED status indicators.

What power sources can charge the unit?
The charger accepts Micro-USB or Type-C input and can be powered from USB wall adapters, power banks, or USB ports meeting the 5V 2-3A input requirement.