K&F Concept NP-FZ100 Battery and Charger for Sony A7iv Battery Compatible With Sony A7III, A7C, FX3, FX30, A6600, A6700, A7RIV, A7Siii, ZV-E1, ZV-E10ii, Alpha 9 II, A9S, A1 Cameras, 2280mAhClimatePartner certified

Very good quality, well packaged and far cheaper than Canon and do the same job.

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!

The batteries are great and doesn't give me 3rd party errors on my Sony FX3.Charging unit is also solid and charges my batteries fine.However, the cable it comes with reads as faulty on my phone and states that it has slow charging speeds. Therefore, I have not been using the cable for the charging unit.

Batteries worked fine for the price but after some time the charging contacts developed a fault. The seller kindly offered a replacement, so very good response and service.

This battery and charger set works fully with the EOS R7 and is fully compatible where others 3rd party brands aren't.However it's worth taking note that your genuine R7 battery wont charge in the K&F charger, I'm gueesing the charger lacks some circuitry that Canon chargers have? Maybe it's something K&F can implement in future chargers? It's not a problem though, thats why the R7 comes with a charger, just use that for the genuine battery.

This battery is very good, works well and last just as good an my Sony branded ones, the best part about buying from k and f is their customer service even for items bought on amazon. I had an issue with one of my battery that it stopped working and they sent me a brand new pack with 2 new batteries and charger all for free, i cant thank them enough ❤️

Initially looked good and worked well, however after a single recharge, one battery completely failed and would not charge in the charger or in the camera, the second d battery still worked, but the electrodes in the charger were misaligned and ended up damaging the battery by breaking the the plastic guides. The charger also damaged my OEM Sony battery. Avoid!Returned for a refund.

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.