Vemico NP-F970 Battery Charger Kit 2x8500mAh Replacement NP-F550 Batteries with LCD USB-C Charger for NP F970/F960/F530/F550/F570/F730/F750/F770/F930/F950 (8500mAh)

I tested it with several different cameras. The battery took 9 hours to charge with the stock charger which is recommended for all new batteries before use no matter what brand they are. Upon removing it from the charger I placed the battery in one of my cameras. So the verdict for all the cameras I tested it on fully charged after each use:At 4096 × 2160 full frame, 256∶135 I got 4 hours and 3 minutes of use with the battery.At 3996 × 2160 flat crop, 1.85∶1 I got 5 hours 53 minutes of useAnd finally at 4096 × 1716 CinemaScope crop I got 4 hours and 29 minutes of use out of it.These times are very acceptable and almost, almost on par with the official batteries.The orange coloring is very nice and easy to see, it also made it easy to find when I lost the battery in my large camera bag.I'd say the batteries are very acceptable.

Great lasting battery life and portable charger. Very low profile and does not take up too much space in my equipment bag

The batteries are fine but the charger doesn’t work properly, it doesn’t show the correct charge level and sometimes doesn’t show if it even charging

Las uso para una lámpara de 200 leds la cual utilizo a lo largo de una hora para videos y aun me sobra batería utilizando sólo una, el cargador es super práctico ya que puedes cargarla ambas ya sea en el carro o la casa ya que puedes conectarlo al cargador de tu movil

I like that I know who's these are on set.I like that they stand out.I DO wish they were the full 8800mAH you see from the competition. 4 stars because... If the competition can do it...Charger seems to work great and not get hot. Batteries do their job (funny how NPF batteries have been around since I was a child) and I really enjoy the pop color when compared to my all-black video gear.

Batteries work great and last a very long time. We used these on our film set and they came in handy. Long lasting and reliable.

So I bought 4 sets of this item (8 batteries and 4 chargers) to both beef up my supply of NPF batteries and give me some badly needed chargers. While the batteries are a nice addition (the orange color lets me pick them out quickly) the chargers are 3/4 bad.The leftmost one works fine, but the one next to it constantly stops and starts charging, and reads every battery as 25-50%, even when fully charged. The last two on the left both have bad second slots, making them one battery chargers.As somebody who bought this item mainly for the chargers, this is a pretty terrible outcome.EDIT: Also, after a few months of occasional use, all but one of the batteries have gone bad. They read at half or less when powering a device, and constantly bounce all around in % when charging, finally stopping at "100%" and again reading low in the device.

Nicely packaged and nicely manufactured. I use these batteries for a number of my accessories and to have a couple of extra long life batteries in my inventory at an economical price means I can always be prepared.