I decided to try these K&F batteries looking for a cheaper option than the official Sony ones and the truth is that they have pleasantly surprised me. The first thing that stands out is that they are fully compatible with my camera.
There have been no error messages or anything strange, they work just like the originals. The duration is also up to par, I have been able to use them for long sessions without problems and the performance is just as good. The charger, despite being an accessory, seems to me to be a success. It allows you to charge the three batteries at the same time and shows the charge level of each one. The build quality of the batteries and the charger is solid, you can tell they are well made. Honestly, for the price they have, I think it is a highly recommended purchase for anyone who needs additional batteries for their Sony camera.
There have been no error messages or anything strange, they work just like the originals. The duration is also up to par, I have been able to use them for long sessions without problems and the performance is just as good. The charger, despite being an accessory, seems to me to be a success. It allows you to charge the three batteries at the same time and shows the charge level of each one. The build quality of the batteries and the charger is solid, you can tell they are well made. Honestly, for the price they have, I think it is a highly recommended purchase for anyone who needs additional batteries for their Sony camera.
05/06/2025
Good quality NP-FZ100 batteries and Charger from K&F Concept.
I have been using the batteries and charger for twelve weeks and so far I have had no issues.
If you are out and about using your camera having extra batteries is a must have accessory to ensure you can keep taking photos for as long as you need/want to.
The charger is nothing fancy and nor does it need to be as long as it can charge the batteries which this does very well, I like the fact that you can connect this to power bank and charge the batteries making this truly portable should you need to.
The batteries do not last as long as original Sony batteries BUT then again alternative batteries never do last as long as original ones, but they are cheaper you are getting three batteries and a charger at just a little more money than one original Sony battery. So it will comes down to what is more important to you brand and better battery life time or price I will leave that for you to decide.
Overall I am happy with the batteries & charger.
I have been using the batteries and charger for twelve weeks and so far I have had no issues.
If you are out and about using your camera having extra batteries is a must have accessory to ensure you can keep taking photos for as long as you need/want to.
The charger is nothing fancy and nor does it need to be as long as it can charge the batteries which this does very well, I like the fact that you can connect this to power bank and charge the batteries making this truly portable should you need to.
The batteries do not last as long as original Sony batteries BUT then again alternative batteries never do last as long as original ones, but they are cheaper you are getting three batteries and a charger at just a little more money than one original Sony battery. So it will comes down to what is more important to you brand and better battery life time or price I will leave that for you to decide.
Overall I am happy with the batteries & charger.
03/06/2025
This is a REVIEW of the SET/lot of camera or camcorder items for sale on AMAZON with the description:
K&F Concept 3-Pack NP-FZ100 Battery 2280mAh and 3-Slot LCD Charger for Sony FX3 FX30 A7 III A7 IV A7R III A7R IV A9 A6600 A7R3 A7S III/A7S3 A7C Alpha 9 Alpha a9 II Alpha 9R A9R Alpha 9S Camera.
This is a PACK of charger and three high-capacity nominal batteries, with the possibility of simultaneous charging with a status indicator display for each of them. The power input connection (5v. can be made either by the USB-C or the USB-Micro port, both located on the side of the charger (adapter cable to USB-A included, adapter power supply not included).
The contacts and battery housings fit perfectly with the SONY models that support NP_FZ100 battery, used by this brand in photographic cameras from the A7 / III model (which is the one I have been able to compare them with), that is, the R and S versions (high resolution and high sensitivity) of this same ILCE A7 III model, and also the two A9 / A9 II versions, and their ""R"" versions (high resolution), and at least for a small sensor APSC format version, the latest A6600, and even for a couple of FX / FX30 Camcorder models.
The biggest limitation is in the simultaneous charging time of the three batteries at once, regardless of the power input power. , simultaneous battery charging can take over 6 hours, this is not a concern if we leave them all connected in the evening when we are not going to use them until the next day. But if we have some discharged and we need the camera to work in shorter periods of time then it is better to connect only one of the batteries to charge so that it can be charged in a little less than half the time, (about 2 hours and 1/2) and then leave the other two charging for a period of about 4 hours, (all this if we put them on charge after a complete discharge).
The stored current capacity of each battery is up to 2280mA/h, and the nominal voltage of these is 7.4 v., which means a power limitation of a little less than 17 W/hour, well below the maximum consumption of this type of camera or video camera.
The price/charger + number of batteries (3) / battery capacity (2280mA/h) ratio is very good at the time of this review (about €70 - an additional discount of -15% applicable for quick purchase, ticking the option before making the purchase), this means a final price somewhat less than €60 (it would not reach €20 per battery taking into account only these. For this reason of price ratio with the versatility of the PACK's Autonomy, I have decided to give this article a rating of:
"" 5 STARS "" = [ * * * * * ] .
I hope you find this review useful, if so let us know, thank you. Best regards.
K&F Concept 3-Pack NP-FZ100 Battery 2280mAh and 3-Slot LCD Charger for Sony FX3 FX30 A7 III A7 IV A7R III A7R IV A9 A6600 A7R3 A7S III/A7S3 A7C Alpha 9 Alpha a9 II Alpha 9R A9R Alpha 9S Camera.
This is a PACK of charger and three high-capacity nominal batteries, with the possibility of simultaneous charging with a status indicator display for each of them. The power input connection (5v. can be made either by the USB-C or the USB-Micro port, both located on the side of the charger (adapter cable to USB-A included, adapter power supply not included).
The contacts and battery housings fit perfectly with the SONY models that support NP_FZ100 battery, used by this brand in photographic cameras from the A7 / III model (which is the one I have been able to compare them with), that is, the R and S versions (high resolution and high sensitivity) of this same ILCE A7 III model, and also the two A9 / A9 II versions, and their ""R"" versions (high resolution), and at least for a small sensor APSC format version, the latest A6600, and even for a couple of FX / FX30 Camcorder models.
The biggest limitation is in the simultaneous charging time of the three batteries at once, regardless of the power input power. , simultaneous battery charging can take over 6 hours, this is not a concern if we leave them all connected in the evening when we are not going to use them until the next day. But if we have some discharged and we need the camera to work in shorter periods of time then it is better to connect only one of the batteries to charge so that it can be charged in a little less than half the time, (about 2 hours and 1/2) and then leave the other two charging for a period of about 4 hours, (all this if we put them on charge after a complete discharge).
The stored current capacity of each battery is up to 2280mA/h, and the nominal voltage of these is 7.4 v., which means a power limitation of a little less than 17 W/hour, well below the maximum consumption of this type of camera or video camera.
The price/charger + number of batteries (3) / battery capacity (2280mA/h) ratio is very good at the time of this review (about €70 - an additional discount of -15% applicable for quick purchase, ticking the option before making the purchase), this means a final price somewhat less than €60 (it would not reach €20 per battery taking into account only these. For this reason of price ratio with the versatility of the PACK's Autonomy, I have decided to give this article a rating of:
"" 5 STARS "" = [ * * * * * ] .
I hope you find this review useful, if so let us know, thank you. Best regards.
03/06/2025
28/05/2025
28/05/2025
20/05/2025
For use with the Sony A7R IV camera, I got the K&F Concept 3-pack of NP-FZ100 batteries and the 3-slot charger. These battery kits have proven very useful for me over the past few months, and I am very pleased with their performance and ease of use.
The batteries appear to have good longevity in terms of how long they can discharge before needing replacement and can fire at least several hundred shots per charge, which makes these on par with Sony branded NP-FZ100 batteries in terms of capacity. I particularly appreciate the utility of a simple LED indicator on the charger that informs on the charge status of each battery slot with green meaning fully charged and red meaning charging. The fact that it’s possible to charge 3 batteries at the same time is good because these cameras drain batteries rather quickly.
The physical construction of both the batteries and charger also appears to be well-engineered – there are no cheap plastic components here. The battery tabs, for example, are nicely click-in with the camera without any possibility to wiggle. But it is even better that the kit has a car charging adapter which can be used to charge batteries in my car whenever I do not have access to an electrical outlet.
Overal for the price offered, K&F Concept offers an exceptional value with this battery kit. It is very stable for my daily use of shooting pictures and the 3 slot charger is very useful. That means I never lack power to supply all my electrical appliances within my home. Definitely the best for those who own any sony mirrorless camera.
The batteries appear to have good longevity in terms of how long they can discharge before needing replacement and can fire at least several hundred shots per charge, which makes these on par with Sony branded NP-FZ100 batteries in terms of capacity. I particularly appreciate the utility of a simple LED indicator on the charger that informs on the charge status of each battery slot with green meaning fully charged and red meaning charging. The fact that it’s possible to charge 3 batteries at the same time is good because these cameras drain batteries rather quickly.
The physical construction of both the batteries and charger also appears to be well-engineered – there are no cheap plastic components here. The battery tabs, for example, are nicely click-in with the camera without any possibility to wiggle. But it is even better that the kit has a car charging adapter which can be used to charge batteries in my car whenever I do not have access to an electrical outlet.
Overal for the price offered, K&F Concept offers an exceptional value with this battery kit. It is very stable for my daily use of shooting pictures and the 3 slot charger is very useful. That means I never lack power to supply all my electrical appliances within my home. Definitely the best for those who own any sony mirrorless camera.
18/05/2025
These batteries work as you would hope them to, just as good as the original manufactured batteries. That is good enough right there, but what sets this apart is the triple charger that displays the level of each battery as they charge. This has made charging so easy for me and I love it.
15/05/2025