Fujifilm NP-W126S Li-Ion Rechargeable Battery

More expensive than the third party options but more reliable and less likely to swell. Battery drain is correctly reported unlike cheaper options that suddenly drop to zero. I had a third party battery that swelled in the camera and was very difficult to remove. Opted to spend the extra money for my new Fujifilm camera for the peace of mind and reliability of the OEM Fuji option. Beware of low priced batteries claiming to fujifilm originals. There are counterfeit versions that look similar but don't have battery protection circuit of the genuine Fujifilm units.

Exactly what I needed for my X100VI.Factory battery size, fit, and longevity.

Can confirm that it works w/o any issues for Fuji X100 VI. Didn't exactly compare battery life but din't notice shorter life when swapping between batteries

Perfect

I bought fake Fuji batteries and they got fat and almost broke my camera.I had to buy the real ones. They last for a good amount of hours. I always take two with me just in case. But stick to buying the real ones like these.

The basic reason you should pay more for this battery is that, unlike its many imitators, it produces predictable results with the camera's battery power gauge. For example, if the battery gauge indicates you're at half capacity, you're not likely to see a flashing low power warning five minutes later. It's still a good idea to have at least one extra battery on hand at all times for backup, or even an external USB power pack for heavy-duty work, but if you value reliable performance, this is the battery to buy.

Primary purpose of my review is to simply reiterate something from the manual; yes the manual that comes with the battery that most people promptly toss in the trash given it's a manual, for a battery... This is a Li-Ion battery, and the manual advises, as do those in the know about battery chemistry, that for maximum service life and charge capacity, you should NOT store the battery fully charged for extended periods of time. If you plan to not use the battery for a while, you should ideally get it down to about 40% charge for storage. Yes it's a minor pain to have to re-charge it before intended use, but that's not too bad as these charge in a few hours with the OEM charger.In any case, not much else to say. It's an expensive battery, in fact almost 3x the cheap-o Wasabi (with charger), but it easily has 30% more usable capacity than the knock-off's, and it also has a working temperature sensor that integrates with the Fuji fast charger. If I'm traveling and absolutely don't want to haul the OEM charger, I have successfully charged these using the Wasabi USB dual charger, it just takes longer, and I make sure to remove them as soon as the light turns green.

Perfect for having extra battery for a trip!