Kastar 3-Pack NP-F750/NP-F770 Batteries with AC Charger - Extended

In this review the Kastar 3-Pack NP-F750 / NP-F770 Battery and AC Wall Charger replacement is assessed for photographers and videographers who need reliable on-camera monitor power. The bottom line: this kit delivers extended runtime with a 5800mAh Lithium-Ion capacity and a compact AC charger, making it a practical choice for long shoots with FEELWORLD monitors. It is best for users who want multiple batteries for back-to-back recording and a simple charger with foldable pins for easy transport.

Key Features

• High capacity battery: Each Lithium-Ion battery provides 5800mAh at 7.4V to noticeably extend runtime on compatible DSLR field monitors.
• Wide charger input: The AC wall charger accepts 100~240V 50~60Hz so it can be used internationally with the proper plug adapter.
• Clear charge status: LED indicators show red while charging and green when the battery is in standby or fully charged, making charge management straightforward.
• Compact charger design: The charger includes a foldable flat pin that reduces bulk and makes it easier to stow in a gear bag.
• Complete kit: The package ships with three batteries and one AC charger so users get multiple spares for extended shooting sessions.

Who It's For

This kit is ideal for DSLR and mirrorless shooters who use FEELWORLD field monitors like the FW568 V2, FW703, FW759 and similar models and who need several full-capacity batteries to avoid downtime between takes. It is especially useful for solo operators, run-and-gun shooters, and small crews who prefer swapping batteries rather than waiting on a single pack to recharge.

Those who should look elsewhere include users requiring in-car charging or a European plug included in the box, since the package does not include a car adapter or European plug. Also, if a camera system needs a different battery chemistry or an OEM-branded power source for warranty reasons, consider manufacturer options.

Pros & Cons

Pros

• High 5800mAh capacity extends monitor runtime significantly for longer shoots.
• Charger supports global AC voltages (100~240V) for flexible travel with an adapter.
• Three batteries included provide ready spares so you can swap without interrupting production.
• LED charging indicators and a foldable flat pin make charging and storage simple.

Cons

• The kit does not include a car charger or European plug, so additional adapters may be required for some users.

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
LED Indicators	Red charging, Green standby/full
Package Contents	3 batteries + 1 AC charger (car adapter/European plug not included)

Our Verdict

The Kastar 3-Pack NP-F750 / NP-F770 kit is a solid value for video shooters who use compatible FEELWORLD field monitors and need dependable extended power. With 5800mAh batteries and a compact AC charger that supports 100~240V, it reduces downtime and keeps shoots moving, though buyers should plan for travel adapters or a car charger if those charging options are required.

Frequently Asked Questions

Will these batteries work with FEELWORLD FW568 V2?
Yes, the kit is listed as compatible with FEELWORLD FW568 V2 and other FEELWORLD field monitors that accept NP-F750/NP-F770 style batteries.

Does the package include a car charger or European plug?
No, the package includes three batteries and one AC wall charger only; a car adapter or European plug is not included.

How do I know when a battery is fully charged?
The included charger uses LED lights: red indicates charging and green indicates standby or full-charge.