Kastar Smart Fast Charger & 2x Battery Replacement for Sony NP-F

In this review of the Kastar Smart Fast Charger and two battery replacements, the bottom line is straightforward: this kit is for camera and video users who need dependable runtime and fast, intelligent charging without fuss. The reviewer found the pair of high-capacity replacement batteries and the dual fast charger best suited to run longer shoots and back-to-back sessions, while the chargers LCD and MCU control deliver visible, automated charging that reduces the risk of overcharge and helps protect battery life.

Key Features

• Ultra-high capacity batteries: The replacement batteries use high quality Japanese cells to deliver longer runtime and avoid the memory effect common to older chemistries.
• Dual fast charging: The charger can charge two batteries simultaneously across a wide voltage range, reducing downtime between shoots.
• Intelligent MCU control: The charger automatically identifies battery voltage and manages the charge cycle to prevent overcharge and handle mixed battery conditions.
• LCD status display: The screen shows charging status and battery capacity so the user can track progress at a glance.
• CC/CV and 0V activation: The charger uses constant-current/constant-voltage charging with pre-charge and 0V activation to safely revive deeply discharged li-ion cells.

Who It's For

This kit is aimed at videographers, event shooters, and hobbyists who use Sony NP-F series batteries or compatible LED lights and need extended run time with quick turnarounds. The included charger and two batteries make a compact power solution for day-long shoots, field recording, or running LED video lights without frequent interruptions.

Photographers who only need one spare battery for occasional use or users of non-compatible battery mounts should look elsewhere; this set is tuned for NP-F style systems and devices listed in the compatibility details.

Pros & Cons

Pros

• High-capacity replacement batteries provide noticeably longer runtime for cameras and LED lights.
• Dual fast charger with LCD lets you charge two batteries simultaneously and monitor status.
• Intelligent control and CC/CV charging improve safety and help extend battery life.

Cons

• The charger requires the correct plate for different battery styles, so users must swap plates for certain batteries which adds a small step to charging.

Specifications

Our Verdict

The Kastar kit is a practical, good-value power solution for NP-F users who need extended runtime and a dependable way to charge multiple batteries quickly. Its intelligent charging, LCD feedback, and high-capacity cells make it a sensible choice for run-and-gun videography or prolonged lighting setups where battery reliability matters.

Frequently Asked Questions

Are these batteries compatible with older NP-F models?
Yes, the batteries list broad NP-F series compatibility including NP-F770 and NP-F750 and are intended to fit many NP-F style devices.

Can the charger revive fully drained batteries?
Yes, the charger supports li-ion 0V activation and pre-charge to safely attempt recovery of deeply discharged cells.

How many batteries can be charged at once?
The unit charges two batteries simultaneously and displays each batterys status on the LCD.