NP-FW50 Replacement Battery 2 Pack and Charger for Sony A6000, A6500, A6300, A6400, A7, A7II, A7RII, A7SII, A7S, A7S2, A7R, A7R2, A55, A5100, RX10, NEX-3, ZV-E10

5 86 86 Review(s) KF28.0004
In Stock
On Sale
C$38.99 C$88.88
Hot Deal
Tax Free
Anniversary Sale: Buy More, Save More
Buy 3 Save 15%
Buy 5 Save 18%
Buy 6 Save 18%
Buy 8+ Save 25%
Anniversary Deals Are Live
&FREE Shipping to Canada
Brand: K&F Concept
  • K&F Concept NP-FW50 Replacement Battery 2 Pack and Charger for Sony A6000, A6500, A6300, A6400, A7, A7II, A7RII, A7SII, A7S, A7S2, A7R, A7R2, A55, A5100, RX10
  • KF28.0004
  • SKU: KF28.0004
  • 38.99
Anniversary Sale: Buy More, Save More
Buy 3 Save 15%
Buy 5 Save 18%
Buy 6 Save 18%
Buy 8+ Save 25%
Anniversary Deals Are Live
Money back guarantee
30-day refund or replacement
30-day refund or replacement
Secure Payment
Multiple payment options
Multiple payment options
Features
  • * Widely Compatible. 100% compatible with Sony NP-FW50 Battery. It is compatible with the NEX 3/5/7 series, SLT-A series, Alpha series and more. Ship to HK, AU, AT, BE, CZ, DK, EE, FI, FR, ES ,SE, SK, SI, RO, PT, PL, NL, US, UK, CN, IT, IE, LV, HU, EL, DE, LU, LT, GR, BY, BG, CA, NZ, RS, CH, UA, GB, IL, HR.
  • * Versatile Charging Options. Smart Dual charger provides a Type-C charging port and a high-quality Type-C to USB-A cable. It can be charged via PC, car charger, USB adapter or power. You can charge the battery anytime and anywhere.
  • * Fully decoded. Fully decoded FW50 replacement battery to triple your camera's runtime, 2 pack 1100mAh rechargeable replacement batteries prolongs your camera's runtime to capture more photos and shoot longer videos.
  • * Original Standard.Original production standard, but larger capacity 1100mAh FW50 battery, can be charged inside the camera, or use 5V 2.1A Micro USB/Type C input charger to maximize charging efficiency.
  • * Safe & Reliable.Built with multiple circuit protection automatic low charging system, effectively preventing battery from over-charging, short-circuit, high-temperature, and over current.
Brand Story
1
1
Comparison
Rating 86 reviews. 82 reviews. 94 reviews. 58 reviews. 88 reviews. 21 reviews.
Price C$38.99 C$79.99 C$79.99 C$69.99 C$59.99 C$88.88
Model KF28.0004 KF28.0001 KF28.0002 KF28.0003 KF28.0005 KF28.0018
Compatible Brand
Sony/NP-FW50 Nikon/EN-EL15 Canon/LP-E6NH Canon/LP-E17 Sony/NP-FZ100 Fujifilm/NP-W235
Battery Capacity
1100MAH 2100MAH 2250MAH 1250MAH 2280MAH 2200MAH
Recharging Time (2 Batteries)
2.5-3h 5h 5.5h 2.5h 4.5h 4.5h
Types of battery
Lithium Lithium Lithium Lithium Lithium Lithium
Charging Port
USB+Type-C USB+Type-C USB+Type-C USB+Type-C USB+Type-C USB+Type-C
Reviews (86)
Please login or register

  • All Reviews
  • Image
  • All Star
    • All Star
    • 5 Star
    • 4 Star
    • 3 Star
    • 2 Star
    • 1 Star
  • Sort by: Most Recent
    • Most Recent
    • Top Rating
5
Very good value,
Amazing value, but battery last about 10% less then oryginal. Having said that it is fraction of the cost plus you get quick charger.
01/06/2026
5
Review 1 year later
I've been using these batteries (for my a6000) and charger for nearly a year now and haven't been disappointed. Sure the batteries don't last as long as the original Sony ones but that was expected and they are much cheaper. Charger works well and is handy and still use the spare batteries all the time. If you're looking for some cheap spares then these are a good shout!
01/06/2026
5
K&F Concept Customer Service is excellent.
UPDATE: K&F Concept customer service was excellent and sent a replacement battery. This battery is fully functional. Updating my review back up to 5 stars due to K&F Concept's responsiveness and customer service, which can be hit or miss with overseas brands. I have no problem recommending K&F Concept as a responsible brand.

--- Original Review ---

Ok, first the Pros:

Small form factor
Charges batteries reasonably quickly - including the standard Sony brand batteries.
Easy USB-C connector.

Cons:
One of the two batteries was completely faulty and would not take a charge, right out of the box.

I've reached out to K&F Concept Customer Service and will update this review based upon the results of the resolution of the issue.
30/05/2026
5
The top
I have a Sony A6000 and it fits perfectly. The battery format is the same for the entire Sony Alpha line, even on those with a full-frame sensor; it's good to know if I want to upgrade my hardware one day and replace my case with a better one.

The charger and the two batteries correspond to the description. I've seen comments that said these batteries didn't hold a charge or weren't as good in quality as the official ones. For my part, I did not notice any difference and I emptied these batteries and the one that comes with the box several times. This is very reassuring and it feels good when you see the price difference between these and the price of the batteries produced by Sony (between 65 and 80€ each depending on the site)! )

A little extra: the charger for these batteries is so practical that I don't even carry the charger that came with the Sony A6000 anymore. I just have this one with me in the bag since it is much more practical and compact than the “official Sony”.

Anyway, it's a great buy.

If my review was helpful to you, feel free to say so.;)
14/04/2026
VIP2
Verified Purchase
5
You always need more than one FW50
I never knew K&F Concept made batteries. I’ve only ever used their filters and they were of great quality. So it’s good to see that they carried that care for quality into these batteries.

You get two NP-FW50 batteries a dual charger and a usb-c cable. You have to supply your own power adapter. The charger is not the best but it gets the job done correctly and safely. The charger gives you two usb options to charge with (usb-c & micro usb). The flexibility of the charging station allows you to charge on the go via a car charger or power power bank, keeping your batteries topped off while you work.

These FW50 batteries are on par with most good FW50 batteries I have tested from third parties. They hold up fairly well during activity and are a great replacement to any aging battery, even if they are the original Sony batteries.
You always need more than one FW50 You always need more than one FW50 You always need more than one FW50 You always need more than one FW50
04/09/2025
VIP1
Verified Purchase
5
Quality Replacement with Proper Fit for Sony Cameras
This review is for the Sony NP-FW50 version

I tested these for a couple weeks with several charge cycles. I have also owned various other brands of aftermarket chargers and batteries. Having had good luck with K&F camera to lens adapters, I was looking forward to try their batteries.

Packaging:
Good quality shipping box. Includes a USB type A to USB Micro cable. Does not include a USB-C cable just a USB-A to USB Micro.

Charging:
Batteries arrived charged to about 65 percent according to what my Sony A7 was reporting and they do fully charge to 100%, but this can take quite a while, perhaps longer than the 2.5 hrs claimed. The LED goes from Red to Green on full charge which is nice and intuitive unlike on/off or blinking LEDs that other companies employ.

Battery
The tolerances on these are excellent. They fit several of my Sony camera bodies just as well as the factory batteries, not loose nor tight. They also fit the Sony OEM charges quite well. Battery power is better than other aftermarket batteries, but I don't think they are a good as the Sony factory units, but then again you get two K&F batteries for the price of one Sony branded battery.

My only gripe is that on the first couple uses, the batteries were a rather tighter fit on the charger than what I expected, but they do seem to go in easier after several uses and after about a month it's fine.

Overall I would say these are high quality replacement batteries and better than most competitors. The high tolerances of the batteries make a big difference as fitment can be just as important as battery life.
Quality Replacement with Proper Fit for Sony Cameras Quality Replacement with Proper Fit for Sony Cameras
02/09/2025
VIP2
Verified Purchase
5
Charger accepts both USB C and A types
Batteries came half-charhed, so I have used charger overnight to give them 100% charge. I then left both batteries for another few days before I have tested them with my Sony camera. Both batteries shown 100% charge.
One of my previous sets of NP-FW non-Sony batteries had a habbit to slowly discharge about 1% per day of not being used and being out of camera, while another set died completely within a year of use. This one seems to hold the charge well for now. If I will see any problems, will update here.

As mentioned in the title of my review, the charger conveniently could be connected via typical usb, as well as newer format - usb C. The lights indicate correctly if battery is charged or not and accepts other brands of NP-FW50 batteries.

Overall, very decent quality and no issues so far.
Charger accepts both USB C and A types
30/08/2025
5
Very good batteries
They hold their charge for a long time, good batteries
22/08/2025
VIP1
Verified Purchase
5
A solid battery replacement
K&F is quickly becoming one of my favorite off brands for photography. Every product I've gotten from them has impressed me in some way or another. These batteries are no different.
The batteries themselves fit perfectly and worked the first time reporting their battery percentage. The casing is nice - a touch more texture than my sony batteries but it's a good feeling battery.
The charging cradle is where I'm most impressed though. While it comes with a micro USB cable, there's also a spot to use a USB C cable to charge the batteries through the cradle. Anything that can reduce the number of cables I have to bring with me is a win in my book. And the charging cradle helpfully has the red and green LED indicator to show when batteries are charging versus full. I much prefer that to the LED on/off style since I can't ever remember which means charging and which means full.

Overall, a solid battery replacement set for anyone still using a sony camera with W batteries.
13/07/2025
VIP3
Verified Purchase
5
Great product
Great battery life and charges fast
Great product
08/07/2025
FAQs
Please login or register

There are no faqs for this product.

Video
Description Of K&F CONCEPT NP-FW50 Battery Charger
Specification
Camera Battery
Compatible Brand Sony/NP-FW50
Battery Capacity 1100MAH
Recharging Time (2 Batteries) 2.5-3h
Types of battery Lithium
Charging Port USB+Type-C
New Releases
Top Bestselling Products