It's always nice to have affordable aftermarket batteries to toss in the camera bag. K&F Concept makes some solid accessories and these don't disappoint with my Lumix GH7. The really handy thing about these over the Panasonic batteries is that you can plug them directly in to power via USB-C (cables included) so you don't need to haul around a bulky adapter to set them in. They're also not plain black in a world of black accessories, so they're much easier to spot in a bag quickly.

Very pleasant surprise these K&F batteries, which are of good quality, both in their manufacture and in their autonomy. No difference or even better than original Panasonic batteries, which are renowned for their controlled autonomy, which is rare for a third party brand. I will definitely be ordering two more!

So far they are good. Holding charge. I really like the ability to plug c cable directly into the battery to charge, much handier than using a charger.

Decent price. Not used enough yet to judge quality of the batteries though.

Excellent battery pack for my Lumix GH7. Have tested few weeks. Do not see difference from original Panasonic battery. Very convienant to charge. Also these use as extra batteries for Lumix S9

The batteries have a charging socket - so you can easily charge them outside the camera - I find that very handy!

work as expected. very useful.

Had a very good experience with these so far - the slightly higher mAh than the official Lumix battery means it lasts a little longer. I was able to power my GH7 while recording to an SSD for about 80 minutes compared to the official battery's 70 minutes.

Considering an official Lumix BLK22 battery costs around £75 brand new you're basically paying 25% of the price here for a battery that seems functionally identical while also offering about 10% more charge.

I also really like the USB-C plug for more charging versatility.

Will probably pick up a few more of these soon so I can shoot for an entire day without needing to charge batteries while on the move.

Works great in my lumix s5ii. Cool that you can plug them in direct to USBC to charge them.

If the camera doesn't get tired before you do it

Do you know that soft pull in your stomach just before the battery blinks? That moment when you know: One more shot — please.
That is exactly where these K&F CONCEPT batteries come in. They feel like taking a second breath for my Lumix S9. In other words: like a full tank of gas on an endless road while others are already standing on the side of the road.

I plugged them in, turned them on — and forgot that batteries could even be an issue. That is perhaps the biggest compliment.

Power that is not discussed but delivers

2520 mAh on paper. In practice? Long photo tours, video clips without nervously squinting at the percentage display and that reassuring feeling that the camera just keeps going.
Whether it's street, travel or spontaneous video recording — the batteries last. Quiet. Unobtrusive. Dependable Like a good friend who doesn't need constant attention.

And yes: They are in no way inferior to the original battery. No burglary, no bitching, no drama. Simply performance.

USB-C: Charging where life happens It's getting

modern here. USB-C directly on the battery. No need for a special charger.
Powerbank in a backpack? Laptop in a coffee shop? Car on the go?
Plug in, LED glows red, drink coffee, move on After around 2.5 hours, everything is green again. It's done.

It doesn't feel like accessories — it feels like freedom.

Headache compatibility

Lumix S5, S5II, GH6, S9, G9 II... the batteries jump back and forth easily between models.
Put it in. Get started No warning, no camera complaining. Exactly as it should be.

Safety that remains in the background

overheating? Overload? Short circuit?
It's all secured. CE, FCC, RoHS — nice to know Even better: You don't notice it because everything just works. And that is exactly what I want from a battery.

Conclusion: Energy that creates trust

These batteries are not a loud promise. They're more like well-oiled clockwork.
They're running. And run. And run.

If you take your Lumix seriously — whether it's a photo or video — then these K&F CONCEPT batteries are exactly what you're looking for.
No frills. No empty marketing words. It's just honest energy.

Or in short:
Insert, forget, be creative.