MAIRFOX NP-FZ100 2-Pack Battery and Charger - Extended Power for Sony

Our review of the MAIRFOX 2-Pack NP-FZ100 battery and smart dual charger finds it best for photographers and videographers who need spare power that behaves like the original Sony cell without the brand price. The package is aimed at users of Sony Alpha and Z series bodies who value longer runtime and flexible charging options; the single biggest reason to buy is straightforward: two 2500mAh batteries plus a USB-powered LCD charger give reliable extended shooting time and clear charge status at a fraction of OEM cost.

Key Features

• Perfect Compatibility: Works with a long list of Sony Alpha and Z series cameras so users can swap batteries without firmware or fit issues.
• Enhanced Battery Performance: Each 7.4V 2500mAh lithium-ion cell delivers extended runtime compared with many third-party alternatives for longer shoots.
• Smart Dual LCD Charger: The charger holds and charges two NP-FZ100 batteries simultaneously while the LCD shows real-time charge levels for each slot.
• Versatile Charging Options: USB input lets you charge from a wall adapter, car charger or power bank when you are on location or traveling.
• Safety Certifications: CE, FCC and RoHS certification plus built-in protections reduce the risk of overcharge, short-circuit and overheating.
• Fire-Resistant Cells: Built with UL1642 Li-ion cells to provide more reliable, long-lasting power behavior similar to original batteries.

Who It's For

The kit is ideal for Sony shooters using a7 series bodies, A6600/6700 mirrorless cameras and pro models like the A1 or FX series who need a dependable spare set for extended sessions, timelapse, or run-and-gun video. It suits photographers who want clear on-charger status and the ability to charge from portable USB power.

Those who should look elsewhere include users who require official manufacturer warranty support or guaranteed OEM cell chemistry claims; also buyers extremely sensitive to absolute maximum capacity may prefer purchasing from the camera maker if they need official labeling or manufacturer service options.

Pros & Cons

Pros

• Good value for money: two batteries plus charger cost less than one OEM battery while providing similar runtime for most users.
• Convenient dual charging with separate LCD indicators keeps both batteries ready and tracked during shoots.
• USB power input adds real flexibility for charging away from mains power.
• Multiple safety certifications and UL1642 cells reduce worry about overheating or short circuits.

Cons

• Some customers report mixed notes on measured capacity versus other brands, so absolute mAh values may vary in practice.
• Not an official manufacturer battery, so some buyers may prefer OEM for brand warranty or service reasons.

Specifications

Battery Voltage	7.4V
Capacity	2500mAh
Included Items	Two NP-FZ100 batteries and dual LCD charger
Charger Input	5V/2A USB
Charger Output	8.4V/0.8A (total per battery slot)
Certifications	CE, FCC, RoHS; UL1642 Li-ion cells

Our Verdict

The MAIRFOX 2-pack with smart dual LCD charger is a practical, cost-effective solution for Sony Alpha and Z series users who need dependable extras without paying OEM prices. It offers flexible USB charging, clear battery-level feedback and safety certifications, making it a solid choice for hobbyists and professionals who want straightforward extended runtime and easy on-the-go charging.

Frequently Asked Questions

Will these batteries fit my Sony a7 III?
Yes, the batteries are fully compatible with the a7 III and other listed Sony Alpha and Z series models and will fit the camera battery compartment like the original.

Can I charge both batteries at the same time?
Yes, the included smart LCD charger charges two NP-FZ100 batteries simultaneously and shows the charging level for each slot.

Can I charge using a power bank?
Yes, the charger uses a 5V USB input so you can charge from a power bank, car charger or standard USB wall adapter.