I use V-mounts for my job every day so wanted to make sure when buying new ones I had the best. I tested 5 of the most popular v-mounts and thought i’d share my opinion to save you the hassle of going through the same. A lot of it is just that, my opinion, so a different battery might suit you better.

My choice: K&F Concept 99Wh PD65W version

RUN TIMES:
First of all I tested run times on a high drain camera and monitor. They all lasted within 5% of each other. So it’s safe to say this is not a consideration when testing. I did wonder if the larger ones would last longer but they were almost exactly the same draw. Perhaps cells might last longer over time but hard to quantify this in testing.

SIZES:
They are not all the same size. If size is important then they are ordered from largest to smallest in my image attached. They may only vary by 10% but to me that feels significant when carrying multiple batteries and wanting to reduce bulk - especially when you aren’t really gaining anything for the extra size.

WEIGHTS:

K&F 100W : 650G
NEEWER: 605G
FX LION: 542G
K&F 60W: 549G
IDX: 553G

PRICE:
Clearly important - I always like a deal however these were mostly Black Friday deals so not sure on actual prices so make your own decision when purchasing.

So to quickly run through the likes and dislikes of each (left to right in the image):

K&F Concept V Mount Battery 99Wh 6700mAh with PD100W USB-C Fast Charging
Likes:
- Well made, feels robust
- D-Tap port easy to get out
- 100W in/out as long as you have compatible charger
- Light on the back

Dislikes:
- Gloss screen - Easily scratched. Don’t understand this new solid black gloss look
- Screen takes 2 seconds to ‘load’ when not powered. Shows logo first before anything else. Doesn’t sound a long time but others are instant
- ON button is on the side, not the front like ALL others, so when on a multi-charger it’s not always accessible to check power status or even find the button as it’s also flush to the body
- Top flap for USB’s is impossible to get off. Takes at least 5 attempts to get your finger under and peel out. Biggest dislike for me!
- Only 1 D-tap…so why the bigger body and higher price? The 100W USB-C
- Largest AND heaviest

NEEWER Mini V Mount Battery 6800mAh 99Wh 
Likes:
- Nice all black finish
- Gloss screen looks nice (but WILL still get scratched) - better than K&F 100W though
- All ports super easy to access. Flaps not stiff
- Screen feels quite basic

Dislikes:
- Only 1 D-tap
- DC Output not useful for me and takes up space
- USB-C port on the side which may get annoying, Prefer top option or one each side
- 60W max USB-C
- Heavy compared to below

SONGING FXLION Wireless Nano Two
Likes:
- Only one with lights and screen. You get instant charge lights on button press with screen milliseconds afterwards. Very fast
- Rubber port covers fit well but see dislike
- Two top located d-taps
- Wireless charging for your phone - don’t see this often
- A good size - more blocky than the next two but a good compromise
- Nice design imo

Dislikes:
- Screen never stays on (biggest dislike)
- Rubber ports are very hard to get back flat, if you are stacking these next to each other they will catch and rip the port covers or at least bend them. Bent rubber is impossible to get back flat
- USB port take a while to get back in
- 60W max USB-C
- USB in Volts not Watts

K&F Concept V Mount Battery 99Wh (6700mAh) Mini V-Mount Battery with PD 65W (MY PICK)
Likes:
- Great size. Feels the smallest
- I love the plastic design with the triangle texture. Never keen on those gloss black plastic of nothing
- Screen stays on when in use
- Screen is tilted up not flat which i prefer when on a camera or monitor
- No DC ports (which i never use so happy to save the space)
- Has a minute counter which is pretty unique. Shows either minutes until drained at current power or minutes till charged. Pretty accurate too so impressed with this for the price.
- Screen shows everything on one page - Minutes remaining, Battery icon bar, Percentage charge, USB Voltages and Battery Voltage
- Cheapest of them all - got the best deal. Under £100 ex VAT.
- Feels well made, grips on both sides
- Ports are REALLY easy to get off and put back on. Harder plastic and makes a big difference.
- D-Tap on both sides which is a bonus considering the price

Cons:
- 60W USB-C in/out but rarely do I need 100W
- USB-C shows Volts not Watts
- Heard that K&F can be a ‘cheaper’ Chinese brand however so far so good…aren’t they all made in China anyway?

IDX IMICRO-98P Mini V-Mount Battery
Likes:
- Smallest battery of them all but only by a tiny amount - maybe 2mm compared to K&F
- Feels solid and good weight
- Port flaps are plastic not rubber so will go back on better
- Torch on back
- IDX are reputable in the industry and I still own IDX batteries from 10 years ago. Paying for the name and testing I would assume.
- 2 D-tap ports

Dislikes:
- No USBs
- D-Taps only on top
- Port flaps quite hard to get off - need nails
- No screen - only 5 lights for battery life
- Pretty basic battery
- More expensive than the others by far