K&F Concept NP-FZ100 2280mAH Battery and Dual Slot Charger Set for Sony A7iii, A7iv, A7C, A6700, A6600, ZV-E1, ZV-E10ii, FX3, FX30, A9, Alpha 9, Alpha 9S, A9S, A7R3, A7R4 Camera Batteries

Great charger and so far the batteries have held it's charge. Very comparable to sonys for a cheaper price. Have used it on about 10 weddings so far.

I recently purchased the K&F Concept NP-FZ100 Battery and Dual Slot Charger Set for my Sony A9, and I couldn’t be more satisfied with my decision. As a photographer who often shoots for extended periods, having reliable and long-lasting batteries is crucial. This set delivers on all fronts including traveling.Battery Performance:The 2280mAH capacity ensures that I have ample power to last through long shoots without constantly worrying about running out of juice. I’ve found these batteries to be just as reliable as the original Sony ones, if not better. They hold a charge well and provide consistent power output all while charging fastDual Slot Charger:The dual slot charger is a game-changer. Being able to charge two batteries simultaneously saves a lot of time and hassle, especially when preparing for a big shoot. The charger is compact, easy to use, and the LED indicators clearly show the charging status of each battery.Value for Money:Considering the quality and performance, this set offers excellent value for money. It’s a cost-effective alternative to the original Sony batteries and charger, without compromising on quality.

This battery charger is amazing and they are absolutely what I needed. Charger charges battery fast and efficiently and battery lasts long. Because the charger is small and usb-c friendly, it's very easy to carry it around without carrying an extra cable.

Really fast speed and hasn't had any bad effect on the chargers!

I bought this charging station and batteries for my Sony a6700. I haven’t used it all that much since I don’t end up shooting for hours at a time. The charging dock seems to charge the batteries decently fast but it feels like cheap plastic. It’s not bad value for how much I paid.

I just went out to use the camera for on the trail. I had the other batteries ready just in case. I am still on that same battery. Though it went down pretty fast originally, it has held for at least three hours. If you looking for some good batteries for a good cost, would definitely recommend. They aren’t as long as the Sony batteries but you get your moneys worth. Charge speed is good and the Functionality is okay to me.

One of the battery in the pack was dead within 45 days. The other battery depleted very quick. However When I reported this to K&F customer service promptly reached out to me offering to replace the unit at their cost without asking any questions. This shows K&F is trying their best to address customer concerns. My request is to ensure QC on their products to keep their brand reputation.

One of the problems of being a photographer is the cost associated with most gear. I already sink tons of money into lenses and bodies, so I really would like to get a break on the other stuff where I can. I opted to get these batteries instead of the Sony version because the price was MUCH lower. They came charged to about 60-70%, and I popped them in the charger to get them to 100%. As normal, my A7R5 pops up a warning that 'this isn't a recognized battery', but they work great anyway. The A7R5 is a battery hog as it is, so I needed to have at least 4 extra batteries for Weddings and long sessions. These work great, and for the price, I can get more sets and have 8-10 spare batteries with me on any shoot. Doesn't seem to make sense to me to buy the official name brand batteries. One thing I did note, when you plug an official Sony battery into this charger, the charger indicator doesn't function. But if you leave it in there for a while, I do overnight, it's always 100% the next day. So, value for money, these are great.