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 BatteriesClimatePartner certified

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.

Buying these batteries were a game changer for my shooting days. I go through 3 batteries easily, so the multiple charging dock is extremely helpful and functional for when I'm on the go at shoots.

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.

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

So far so good! Efficient and cost effective!

This charger and batteries are great. They work well with my Sony camera, perfect size, great value, functions as a Sony battery does and great quality!

Works great! Very useful when you are traveling

Works for me. Bought as an additional set to my original battery. Will add updates later after longer use. On that moment all is great.