Kastar 4-Pack Battery and Quadruple Charger - Fast Charging Kit

In this review of the Kastar 4-Pack Battery and Quadruple Charger the bottom line is simple: it is for photographers and videographers who need multiple ready batteries and a flexible, compact charging solution. The pack bundles four 7.2V 1650mAh Lithium-Ion batteries with a quad charger that can top up to four cells at once and swaps plates for compatibility. The single biggest reason to buy is the convenience of charging multiple NP-FW50 and compatible W series batteries from a Micro-USB or Type-C input while being able to monitor charge status on the charger display.

Key Features

• Four batteries included: Four 1650mAh Lithium-Ion batteries provide extended runtime for longer shoots without hunting for replacements.
• Quadruple charging: The charger can charge up to four batteries simultaneously, cutting downtime on location or between events.
• Changeable plate: Interchangeable charging plates allow the unit to work with different compatible battery plates for greater camera support.
• Multiple input options: Micro-USB and Type-C inputs are supported and a Type-C cable is included for modern power sources and travel convenience.
• Smart display: The intelligent compact charger displays charging status and battery capacity so users can see progress at a glance.
• Safe power delivery: The charger accepts 5V 2-3A 15W input and supplies regulated outputs for individual battery protection while charging.

Who It's For

The kit suits hobbyists, event photographers, and mirrorless camera users who rely on Sony NP-FW50 or compatible W series batteries and need a reliable set of spares and a versatile charger. It is especially useful for creators who travel and want USB-C charging so they can use power banks or laptop ports.

It is less appropriate for users who require the very highest capacity aftermarket cells or proprietary fast-charging systems tied to a single camera model. Professionals who prefer factory-brand batteries with camera-integrated charging telemetry may look elsewhere.

Pros & Cons

Pros

• Includes four 1650mAh Lithium-Ion batteries to significantly extend shooting time without swapping to single-use cells.
• Charges up to four batteries at once with sensible per-slot current distribution to manage charge times while protecting cells.
• Type-C and Micro-USB inputs increase compatibility with modern chargers and power banks for field use.
• Compact intelligent display shows charging status and approximate capacity for easy monitoring.

Cons

• Output current per slot reduces when charging three or four batteries simultaneously, so full recharge times are longer under max load.
• Not a direct in-camera charging solution; batteries must be removed from camera bodies for charging.

Specifications

Battery Type	Lithium-Ion
Battery Voltage	7.2V
Battery Capacity	1650mAh
Charger Input	5V 2-3A (15W)
Charger Output	8.4V 800mA (x1-2) / 500mA (x3-4)
Inputs	Micro-USB and Type-C (Type-C cable included)

Our Verdict

The Kastar 4-Pack Battery and Quadruple Charger is a practical value buy for mirrorless camera users who need multiple spare NP-FW50 or W series batteries and flexible USB charging. It delivers sensible capacity, simultaneous charging, and a clear status display, making it a convenient kit for travel and prolonged shoots where replacing batteries quickly matters.

Frequently Asked Questions

Can the charger power a laptop or only charge batteries?
The unit is designed to charge batteries only; it accepts USB power input but does not act as a USB power output hub for other devices.

Are replacement plates included to support other battery types?
The charger supports changeable plates so it can accommodate different compatible battery plates; verify compatibility before use.

Is a Type-C cable included with the kit?
Yes, a Type-C cable is included and the charger also supports Micro-USB input for added convenience.