Kastar 3-Pack NP-F750 NP-F770 Batteries and LTD2 USB Charger

In this review the Kastar 3-Pack NP-F750 / NP-F770 batteries bundled with the LTD2 USB dual charger are judged for videographers who use Blackmagic Design Video Assist monitors and need dependable runtime and charging flexibility. The bottom line: this combo delivers long-lasting 7.4V, 5800mAh lithium-ion capacity and a compact dual charger that can top two batteries concurrently, making it a practical spare-power solution on shoots where swapping batteries quickly matters.

Key Features

• High capacity cells: Each 5800mAh lithium-ion battery provides extended run time for the Video Assist monitors, reducing how often you need to swap batteries during a shoot.
• Dual charging: The LTD2 charger can charge two batteries at the same time, which speeds turnaround when you return to base between takes.
• Interchangeable plate: The charger allows the plate to be changed to accommodate different battery plates, adding compatibility and convenience.
• Compact USB input: With Micro-USB and Type-C inputs and a supplied Micro-USB cable, the charger can run from common 5V USB power banks or adapters for field charging.
• Clear status indication: Intelligent LED indicators show charging status and battery capacity so you can see which cells are ready without guesswork.

Who It's For

This kit is aimed at camera operators and content creators who use Blackmagic Design Video Assist 5" or 7" models and need multiple spare batteries with a portable charging option. The large 5800mAh cells are useful for long recording sessions, run-and-gun shoots, and situations where mains power is not always available.

Those who want ultra-fast professional charging or integrated mounting solutions may look elsewhere; the charger is designed for convenience and portability with USB input rather than high-wattage studio charging stations.

Pros & Cons

Pros

• Long 5800mAh capacity extends monitor runtime and reduces battery swaps.
• Dual charging capability lets two batteries refill at once for quicker turnaround.
• Flexible input options (Micro-USB and Type-C) work with common USB power sources and power banks.

Cons

• The USB 5V input limits charging speed compared with higher-voltage dedicated chargers, so full recharge can take longer.

Specifications

Our Verdict

The Kastar 3-pack plus LTD2 USB dual charger is a practical, cost-effective kit for Video Assist users who need dependable, high-capacity spares and the flexibility to charge from USB power. It is especially valuable for run-and-gun shooters and small crews; professionals needing the fastest possible recharge times may prefer higher-wattage dedicated chargers, but for portability and steady performance this bundle represents solid value.

Frequently Asked Questions

Are these batteries compatible with Blackmagic Video Assist monitors?
Yes, the pack is specified for Blackmagic Design Video Assist 5" and 7" models including 12G-SDI/HDMI and 3G-SDI/HDMI units.

Can the charger charge two batteries at once?
Yes, the LTD2 charger supports charging two batteries simultaneously and shows status with intelligent LED indicators.

What power sources can be used to charge the batteries?
The charger accepts Micro-USB and Type-C inputs and can be powered from 5V USB supplies such as power banks or USB adapters; a Micro-USB cable is included.