Kastar NP-F770 Battery 3-Pack and LTD2 Charger - High Capacity Power

In this review of the Kastar NP-F770 Battery 3-Pack with the LTD2 USB charger, the bottom line is simple: this kit is for field recordists, videographers and photographers who need reliable, long runtime power for NP-F style camcorders and audio recorders. The three 5800mAh lithium-ion batteries offer substantial runtime at 7.4V, and the LTD2 charger adds intelligent dual charging with both Micro-USB and Type-C options. For anyone using Sound Devices MixPre series mixers or FEELWORLD monitors, this package eliminates frequent battery swaps and keeps a compact, portable charging option on hand.

Key Features

• High capacity batteries: Each 5800mAh 7.4V lithium-ion cell provides extended runtime so you spend more time recording and less time swapping batteries.
• Dual battery charging: The LTD2 charger can charge two batteries at the same time, which speeds turnaround when you have multiple batteries in rotation.
• Flexible plates: The charger accepts interchangeable plates to support different NP-F style battery plates, making it adaptable across gear.
• Multiple input options: Micro-USB and Type-C inputs allow charging from a 5V 2-3A 15W supply, so field power banks or USB wall adapters work easily.
• Smart LED indicators: The intelligent LED display shows charging status and gives a quick view of remaining battery capacity to plan shoots.
• Portable design: The charger and three batteries are easy to carry in a kit bag, offering a compact backup power solution for location work.

Who It's For

The Kastar NP-F770 3-pack is ideal for videographers using NP-F compatible devices such as Sound Devices MixPre-3, MixPre-6, MixPre-10T, or compatible monitors like the FEELWORLD F5 Pro. It suits run-and-gun shooters, ENG crews and audio recordists who need long battery life without adding vehicle chargers or large charging docks.

Those who should look elsewhere include users who require OEM-brand battery chemistries for manufacturer-supported warranties or people who need ultra-fast multi-slot rapid charging beyond the 800mA per slot output; this charger focuses on portability and compatibility rather than rapid bulk charging.

Pros & Cons

Pros

• Large 5800mAh capacity per battery gives extended runtime for cameras and mixers.
• Charger can handle two batteries simultaneously, reducing downtime between shoots.
• Micro-USB and Type-C inputs increase flexibility for field charging options.

Cons

• Charger output is limited to 8.4V 800mA per slot, so charging is not especially fast compared with high-current desktop chargers.

Specifications

Our Verdict

The Kastar NP-F770 3-pack with LTD2 charger is a practical, cost-effective kit for professionals and enthusiasts who need long runtimes and portable charging for NP-F compatible gear. It delivers reliable capacity and USB charging flexibility, making it a good value for location shooters who prioritize runtime and convenience over fastest-possible charge speeds.

Frequently Asked Questions

Are these batteries compatible with Sound Devices mixers?
Yes, the pack is listed as compatible with Sound Devices MixPre-3, MixPre-6 and MixPre-10T models and other NP-F style devices.

Can the charger power both batteries at full speed?
The LTD2 charges two batteries simultaneously but provides up to 800mA per slot, so charging is moderate rather than high-speed.

What inputs does the charger accept?
The charger accepts Micro-USB and Type-C inputs and includes a Micro-USB cable for connecting to a 5V 2-3A power source.