K&F CONCEPT NP-FW50 Battery and Charger Set Compatible with Sony A6400

Recommended Neat charger for 2x batteries at a time. Good product.

I need replacement batteries for the Sony ZV E10 and I needed an external charger for these batteries. This product is a charger and two battery. I have used the batteries and the charger regularly for months. Everything is working well. The charger charges up from 0 to 100% quite quickly. I can't recall for sure, but if memory serves, it is less than one hour, which is fine for me. Also, the replacement batteries seem no different, in terms of time to drain or time to charge, from the Sony brand battery that came with the camera. I have only had the batteries and charger for a few months, so who knows what it will be like in a few years. It could be that everything continues to work as well as now, or things could start deteriorating. Time will tell, but at least on the basis of a few months of regular use, it is very satisfactory.

The K&F Concept NP-FW50 Battery and Charger Set for my Sony ZV-E10 has been fantastic! The batteries hold a good charge, comparable to the original Sony ones, and the dual charger is super convenient, allowing me to charge both batteries at once. This set has really improved my workflow during long shoots, and the charging times are quick. Overall, it's a great value and reliable alternative to more expensive options. Highly recommend for ZV-E10 users!

Both batteries drain roughly 1% every 1-2 minutes in a Sony A7RII, safe to say they are not fit for even a few hours away from a charger. Some other cameras might drain the batteries slower so this review is specifically for the A7RII. The price for two of these batteries (and the charger) being half the price of an official Sony battery might justify the lack of capacity but to last a day of shooting you'd need 4 batteries and that means the same price as an official Sony battery... EDIT: Updated to 4 Stars: Received refund for payment of this product (minus tax) from the seller and really great, constant, customer service via email back and forth. Would buy from them again with the knowledge that any unlikely issues can be worked out

Although I'm only on my 5th charge cycle these batteries seems to be holding up and giving some good run times. I'm using both batteries in a battery grip so it seems like I'm getting some extra long shooting sessions. As long as they hold up in the the next 6 months or so I'll buy more.

Small and lightweight, this unit charges quickly. The batteries don’t get hot during charging. Charges via USB-A or USB-C, very handy. Recommend.

One slot Stopped working after 6 months. Only one slot now works intermittently and batteries last less than an hour. I don’t recommend this charger

I use this to charge my sony zv-e10 camera ba3 and the ba3 that comes with this is durable as well. It charges the batteries fast and they don’t drain too fast.

Good batteries for the price, type c port for charging is a great benefit. Also had an issue with the charger where pins in one of the slots sunk and it didn't work. Reached out to the customer support and they sent out a replacement.

Prompt delivery. Working as expected.

Purchased this for my sony NEX . The original batteries were not holding charge well. These batteries brought my camera back to life.

battery drains fast.

This was a great battery replacement for my Sony ZVE-10 Mark 1. The packaging was nice and the indicator lights really helped with telling if the batteries were fully charges are not. Something like this is a must for heavy camera users and the battery life on the Sony ZVE-10 can be a little lacking when using it for Vlogging. I would definitely buy it again if it ever fails but, I don't see that in the foresee able future knowing K&F is a great brand.