SmallRig USB-C Battery 1030mAh for Sony NP-FW50 (4330) – USB-C fast charging for A6400, A6100 and more
Product description
What it is
The SmallRig USB-C Battery 1030mAh is a rechargeable camera battery designed as a replacement for Sony NP-FW50. It uses a USB-C charging option and claims faster charging times than typical USB-C and conventional chargers. It sits in the same size class as the original NP-FW50, so it should fit in the camera compartment without jamming.
How it’s built

This battery uses a high-quality lithium cell and a frosted ABS/PC outer shell, described as fire-resistant and durable. The aim is to provide a reliable unit with stable voltage and current output. The casing mirrors the form factor of the original NP-FW50, which helps with compatibility in holders and mounts that expect the exact size.
Charging and battery life
charging is a key selling point here. The USB-C port is positioned to allow fast charging, with the manufacturer claiming a roughly 30% shorter fill compared to other USB-C camera batteries and a 40% faster fill than conventional charging. In practical terms, the spec lists 135 minutes to reach a full charge at high current (5V/1A). A charging indicator shows red during charging and green when full, which can help when you’re juggling multiple power sources on location.



Compatibility and ecosystem
The 4330 model is positioned as a replacement for Sony NP-FW50 batteries and is listed as compatible with a wide range of Sony bodies and models (A7 series, A6000 series, ZV-E10, RX10, etc.). It also mentions compatibility with the original Sony charger as well as SmallRig’s own NP-FW50 charging sets. If you’ve got a setup that relies on NP-FW50s, this could be a practical swap or backup.
Practical use and what to expect

On the bench, you’ll notice that the 1030mAh rating is modest by today’s top-end standards, which means it’s best suited for casual video shoots or photography sessions where you’re not constantly running a high-power rig. In practice, a 1030mAh pack should support several minutes of continuous shooting or video, but you’ll want to keep an eye on the gauge if you’re running longer sessions.
Pros and cons
- Pros: USB-C fast charging capability, a visible charging indicator, form-factor compatibility with NP-FW50, a durable outer shell, implied no-memory effect for longer life.
- Cons: 1030mAh is not large by modern rival batteries, so it may require more frequent swaps on long shoots. The claim of 135 minutes to full charge depends on input from a charger and power source, so real-world times may vary. The description does not provide independent test data or temperature performance details.



Who it’s for
This battery is suitable for photographers and videographers who rely on Sony NP-FW50 packs and want quicker USB-C charging and a dependable backup. It’s a reasonable option if you’re already using USB-C charging on other gear and want a single-charger setup, or if you value a familiar form factor and the reassurance of full-sized compatibility with a broad Sony lineup.
When it may not be the best choice

If you need maximum runtime from a single charge for long shoots, a higher-capacity battery may be more appropriate. If your workflow already uses a different battery format or you require independent fast-charging performance independent of your camera’s charging ecosystem, there are other options to consider. Also, keep in mind that the actual charging speed can be influenced by the charger used and the power source, so the 135-minute figure is a guideline rather than a guaranteed outcome.
What to check before you buy
- Confirm the exact camera model to ensure NP-FW50 compatibility (the list covers many popular Sony bodies, but not every variant).
- Check your charging setup for USB-C power availability (5V/1A is called out, so using higher-current sources may alter timing).
- Consider how you’ll manage multiple batteries on location — a fast charger or sufficient power banks can help keep workflow smooth.



How it compares in use
If you’re between this and a traditional NP-FW50, the USB-C fast charging feature could save time on busy days, but you’ll trade some runtime per charge due to the 1030mAh capacity. For users who prioritise quick top-ups and a reliable fit, this approach makes sense, for those who shoot all day without swapping, you may want higher capacity options or a secondary charging strategy.
FAQ (based on available data)
- Is it a direct replacement for NP-FW50? Yes, it’s marketed as a replacement for Sony NP-FW50 and claims compatibility with multiple Sony bodies.
- Does the battery support memory-free charging? The description mentions long life and no memory effect as a general benefit of Li-ion chemistry, but no independent testing data is provided.
- Can I use the original charger with this battery? The product notes compatibility with the original charger as well as SmallRig charging sets.
- What’s the practical charging time? The manufacturer cites 135 minutes at 5V/1A, but real-world timing may vary with charger and power source.
Final verdict
Is it worth it? Worth considering if you already use NP-FW50 batteries and want a USB-C charging option with a familiar form factor. It isn’t the highest-capacity battery, so if your shoots demand extended runtimes, you may want to plan for more frequent swaps or an alternate higher-capacity option. For day-to-day use and as a solid backup, this SmallRig battery offers pragmatic value with straightforward charging and broad compatibility.
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