K&F Concept 3500mAh Battery for Sony NP-F550 F970 F570 F750
K&F Concept 3500mAh Battery for Sony NP-F550 F970 F570 F750 F770 F950 F960, with USB-C Fast Charging, Replacement Battery Compatible with Sony Camcorders, Monitors, LED Video Lights
This NP-F550 style battery is great. It can charge on a NP-F charger as well as on the side through a USB-C cable. This makes topping the battery off on-the-go much more convenient.
This type of batteries tend to max out at roughly 10W charging and this seems to be what this one manages to do at a stable speed, sometimes going a few watts higher. I do like how the charge indicator light is actually on top of the battery instead of right beside the USB C port, since it makes it less likely to be blocked by your USB-C cable. And compared to similar USB-C chargeable NP-F550 style batteries with a power indicator button, I find these don’t really self-discharge, which is just yet another positive for it.
Overall a solid performer that is also an easy recommend.
I was already using some NP-F style batteries with built in charging by USB-C and I love the simplicity of it so I snatched up this K&F Concept battery because an NP-F550 battery is a trade off I take for my 5 inch HDMI camera monitor. None of my other gear will last long or they even shut down in less than a minute on the wattage of a 550 level battery, but the bigger batteries defeat the purpose of the 5 inch monitor which is to have a camera rig with as little weight as possible hanging out on brackets where the weight is leveraged with all the bad characteristics that scenario creates.
The self contained charging from USB-C and still being able to leave it in a dedicated NP-F charger bay provides option to have the battery topping up from even a car’s outlet while driving to a shoot location.
There is no penalty in size or complexity so I expect this trend to expand across other families of batteries from here on.
A third party battery for various Sony models. It arrives simply packaged with an adequate USB C charging cable, and apart from being in an unusual brown shade it seems of equivalent quality to the OEM version, apart of course being considerably less expensive. Recommended.
I have several field monitors that take NP-F550 batteries and on a long days shooting they will need to be replaced at least once.
I’m pleased to say that this one from K&F has surprised me with it’s longevity, easily outperforming other none OEM batteries I own whilst being directly rechargeable from a power bank without the need to carry an additional charger.
And it’s brown, c’mon, who doesn’t get bored looking at a sea of black batteries, it sure makes spotting these easier.
I shall be ordering more.