I ordered this K&F Concept 1300mAh NP-W126 NP-W126S Battery and Charger for my Fuji X-Pro1.

I don't use my X-Pro1 very often. But if I just want some basic snapshots, or I'm headed someplace where I don't want to carry my GFX, I'll take the X-Pro. I bought mine used about 6 months ago, and the OEM battery it came with was already reaching the end of its life. I've used K&F Concept batteries in my GFX and my Canon 5dii, so it seemed like a good bet to pick up this 2 pack of batteries plus a charger.

The charger works well. It can be powered via a USB-C or MicroUSB cable. The charger does not report the state of charge but uses indicator lights to let you know when a battery is charging and when the charge is complete. It is light and compact.

The batteries fit perfectly into my camera. A freshly charged battery was reported as full by the camera. I can't say if these batteries will last as long as an OEM battery, because my OEM battery is old and quite degraded, so I don't have a battery that I can make a fair comparison to. Based on my experience with other K&F Concept batteries, though, I expect that these will last about 80% as long as a fresh OEM battery.