Kastar 4-Pack NP-F750 NP-F770 Batteries with AC Wall Charger - Long

Our review of the Kastar 4-Pack NP-F750 / NP-F770 battery set with AC wall charger focuses on small production setups and solo shooters who need reliable, swappable power for field monitors and on-camera recorders. The bottom line: this kit delivers long runtime and convenient charging for extended shoots, with a 5800mAh lithium-ion capacity that replaces NP-F750/NP-F770 cells and a compact AC charger that fits standard outlets. It is a practical, no-frills power solution for anyone who uses compatible monitors and needs multiple spare batteries on hand.

Key Features

• High capacity batteries: Each 5800mAh lithium-ion cell provides extended on-camera and monitor runtime so you can shoot longer without swapping batteries.
• Wide compatibility: Works with a long list of on-camera and field monitors, making it a flexible spare power option across multiple monitor models.
• Compact AC charger: The included wall charger has a foldable flat pin for neat storage and easy transport between locations.
• Universal input: The charger accepts AC 100~240V 50~60Hz so it can be used worldwide with the proper plug adapter.
• Charge status LEDs: Red indicates charging and green shows standby or full-charge, which makes it easy to see battery progress at a glance.
• Value pack: The bundle includes four replacement batteries plus one AC charger, reducing the need to buy cells individually when stocking up for shoots.

Who It's For

This kit is aimed at videographers and photographers who use compatible monitors such as SmallHD, Blackmagic Video Assist, Neewer, and Portkeys models and who need multiple fully charged spares for long days on set. It suits one-person crews, independent filmmakers, and rental houses that want affordable replacement batteries without proprietary pricing.

It is less suitable for users who require a car adapter or European plug immediately, since the package does not include those extras, or for productions that demand official brand batteries for vendor warranties. Buyers who need a multi-bay rapid charger should also consider higher-end charging stations instead.

Pros & Cons

Pros

• High 5800mAh capacity gives noticeably longer runtime between swaps for monitors and recorders.
• Includes an AC wall charger with foldable pin for tidy storage and travel convenience.
• Charger supports universal AC input so it can be used internationally with the correct plug adapter.
• Charge LEDs provide clear red/green indicators for charging status.

Cons

• Package omits a car adapter and European plug, which may require an extra purchase for on-location work.
• No multi-bay rapid charger is included, so charging four batteries at once will be slower unless you buy additional chargers.

Specifications

Battery Type	Lithium-Ion
Battery Voltage	7.4V
Battery Capacity	5800mAh
Charger Input	AC 100~240V 50~60Hz
Charger Output	DC 8.4V 600mA
Charge Indicator	Red charging / Green standby or full
Package Contents	4 batteries + 1 AC wall charger

Our Verdict

The Kastar 4-pack with AC wall charger is a solid value for shooters who need multiple high-capacity NP-F750/NP-F770 replacements and a compact charger for on-set convenience. It delivers reliable runtimes and universal charger input, making it a smart budget choice for solo operators and small crews, provided you can supply any region-specific plug adapters or a separate rapid charger if you want faster parallel charging.

Frequently Asked Questions

Are these batteries compatible with SmallHD and Blackmagic monitors?
Yes, the pack is listed as compatible with numerous SmallHD and Blackmagic Video Assist monitors that accept NP-F750/NP-F770 style batteries.

Does the charger work internationally?
The charger accepts AC 100~240V 50~60Hz, so it will work worldwide but you may need a local plug adapter for non-compatible outlets.

Can all four batteries be charged at once with the included charger?
No, the package includes a single AC charger that charges one battery at a time; for simultaneous charging you would need additional chargers or a multi-bay unit.