K&F ConceptNP-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 BatteriesClimatePartner certified

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 is a great backup battery set for my ZV-E1. It’s much cheaper than buying Sony originals, and the dual charger makes it easy to charge two batteries at once.The charger is compact and easy to travel with, and so far the batteries hold a solid charge during shoots. Very handy to have in my camera bag.

I was sceptical at first, but in a last minute pinch before heading on a trip to Japan I purchased this battery set and was not disappointed. Throughout my trip they worked great, charged as expected and lasted about as long as my Sony battery as far as I could tell. Two weeks in Japan so two weeks of use not one problem or hiccup. Great value for the price.

works great!

I’ve been using the K&F NP-FZ100 2280mAh battery and dual slot charger for a few weeks now, and I’m thoroughly impressed. The batteries hold a charge exceptionally well and perform on par with the original Sony batteries in my camera. I’ve used them for extended shoots and haven’t noticed any overheating or performance issues. The dual slot charger is compact and efficient—perfect for travel. It charges both batteries simultaneously and includes a USB-C port. The build quality feels solid, and the LED indicators are clear and helpful. Overall, this is a fantastic value for the price. If you're looking for a reliable backup or replacement battery system for your Sony camera, I highly recommend this set.

This is a good buy as an additional battery. I used it on my A74 and it works as intended. The built quality was good also.

Update: 8/19/2025- I was contacted via email from the provider of the batteries and charger. They sent me a new set of batteries and charger. I just received them this past weekend. I charged them and they fully charged. Thank you for sending me batteries and a charger that work.Original review:Update, iv had this charger for almost a year and never had to really charge these batteries. Just went to go put them on the charger and they blink red at all times and never charge. Not sure what went wrong.

Functionality:show the charging levels using a red and green lightBattery life:battery honest last for a good whileCharge rate:charges at a decent rate and can also charge original batteries which is greatEase of use:very simple and easy to use