The two-pack of batteries have proven to be real workhorses for my Sony Alpha.
With 2600mAh, they offer noticeably long runtimes, which is extremely useful, especially for longer shoots or while on the go.
The build quality appears robust and high-quality; nothing rattles or feels cheap.
The charger also appears sturdy and charges the batteries reliably and relatively quickly.
In use, the batteries deliver consistent performance, without unexpected drops, and retain their capacity very well even after multiple charging cycles.
For me, they are a fair and long-lasting alternative to the original batteries.
With 2600mAh, they offer noticeably long runtimes, which is extremely useful, especially for longer shoots or while on the go.
The build quality appears robust and high-quality; nothing rattles or feels cheap.
The charger also appears sturdy and charges the batteries reliably and relatively quickly.
In use, the batteries deliver consistent performance, without unexpected drops, and retain their capacity very well even after multiple charging cycles.
For me, they are a fair and long-lasting alternative to the original batteries.
29/06/2025
This battery and charger set is excellent value for money.
It includes 2 NP-FZ100 batteries and a 'fast' (see below) charger for (at the time of writing) under £60. Considering an original Sony battery costs over £60 each, that's one amazing bargain.
I tried both batteries in my Sony A7IV battery grip and both registered with no issues straight out of the box with 56% charge showing.
I did not initially charge the batteries as I wanted to show in the video that they work straight away, but it's always advised to fully charge the batteries before the initial use.
The charger, when plugged in (the charger has inputs for both Type C and Micro USB, meaning you shouldn't be caught short when away from the home) flashes the LCD showing the battery capacity upwards in a charging motion style before a full charge indicator is given. I did however find that the charger took a few hours to charge the batteries, despite them already being half full. So I wouldn't say it was a 'fast' charger, more an overnight one.
The K&F batteries are both a larger capacity with the original Sony battery stating 2280mAh and the K&F is 2600mAh in capacity, so this should mean you get a few more shots of usage out of it.
It includes 2 NP-FZ100 batteries and a 'fast' (see below) charger for (at the time of writing) under £60. Considering an original Sony battery costs over £60 each, that's one amazing bargain.
I tried both batteries in my Sony A7IV battery grip and both registered with no issues straight out of the box with 56% charge showing.
I did not initially charge the batteries as I wanted to show in the video that they work straight away, but it's always advised to fully charge the batteries before the initial use.
The charger, when plugged in (the charger has inputs for both Type C and Micro USB, meaning you shouldn't be caught short when away from the home) flashes the LCD showing the battery capacity upwards in a charging motion style before a full charge indicator is given. I did however find that the charger took a few hours to charge the batteries, despite them already being half full. So I wouldn't say it was a 'fast' charger, more an overnight one.
The K&F batteries are both a larger capacity with the original Sony battery stating 2280mAh and the K&F is 2600mAh in capacity, so this should mean you get a few more shots of usage out of it.
26/06/2025
Good value battery and charger kit. The batteries perform as well as the OEM ones do. The charger charges the batteries well and features an indicator as to whether the batteries are fully charged or not. Powered by provided USB cable, which is handy as it can be charged in any wall outlet, power bank, computer etc. Good value for money over the OEM batteries.
23/06/2025
K&F Concept NP-FZ100 2600mAh Battery and Charger Set, Compatible With A7iii Battery A7 III, A7iv, FX3, FX30, A6600, A7C, A6700, A7RIV, A7Siii, ZV-E1, ZV-E10ii, Alpha 9 II, A9S Cameras
Anyone familiar with K&F products know that you're getting a quality product for a fraction of the OEM price. These are substantially cheaper than the Sony equivalent without any loss in performance.
In the box you get 2x 2600mAh NP-FZ100 batteries, a twin slot mains charger and a USB power cable. All are well made and work really well too. Good value for money
Anyone familiar with K&F products know that you're getting a quality product for a fraction of the OEM price. These are substantially cheaper than the Sony equivalent without any loss in performance.
In the box you get 2x 2600mAh NP-FZ100 batteries, a twin slot mains charger and a USB power cable. All are well made and work really well too. Good value for money
19/06/2025
Price at time of review was £59 with the time-limited option of a 10% discount, so price comparable with other supplier and much cheaper than Sony OEM of course.
The batteries are supplied with clip-on covers, not something I've seen before, so grit or dirt can't get into the battery contacts. The batteries fitted fine into my Sony A7R V; I've yet to see the camera warning about performance limitations with a non-Sony battery, but can't be sure K&F have completely prevented that.
Charging rate was typical, with the charger showing LCD progress bars. I appreciate that the charger has USB-C as well as micro-USB.
All in all recommened to give spare batteries for extended usage time of a Sony camera.
The batteries are supplied with clip-on covers, not something I've seen before, so grit or dirt can't get into the battery contacts. The batteries fitted fine into my Sony A7R V; I've yet to see the camera warning about performance limitations with a non-Sony battery, but can't be sure K&F have completely prevented that.
Charging rate was typical, with the charger showing LCD progress bars. I appreciate that the charger has USB-C as well as micro-USB.
All in all recommened to give spare batteries for extended usage time of a Sony camera.
18/06/2025
I wanted some spare batteries for my Sony A6700 for a upcoming holiday and these batteries fit my camera and work well.
The charging dock works with a USB-C lead, making this ideal for use abroad. The charging dock stops charging when your battery is full, so over charging is less likely.
The charging base also lets you know when each battery is fully charged so the batteries are charged independently of each other.
The build quality is very good and this works well.
The charging dock works with a USB-C lead, making this ideal for use abroad. The charging dock stops charging when your battery is full, so over charging is less likely.
The charging base also lets you know when each battery is fully charged so the batteries are charged independently of each other.
The build quality is very good and this works well.
16/06/2025