Certainly if you want a replaceable battery, the 950 looks like the sweet spot. Of course these days on W10M an embedded battery will outlast the supported life of the OS, so......
Paul
Speaking of batteries. Since I got my 950 used I don't know how the battery was treated, and having heard about fitment issues and spontaneous reboot likely associated with loose battery fit...
I ordered 2 of these:
https://smile.amazon.com/gp/product/B074V3GKW1/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1
Got two of them because the 950 is just doing camera duty and I'm outward bound in a few days. I'd rather battery swap in the field than try and take pics with a battery bank dangling off the device by a cord. When I'm on vacation I shoot a
lot so I can be assured of having a few really great pics from every sight.
Anyhow, the TQTHL batteries fit really tight. They seem to be doing the job rather well, bit I'm trying to get the calibration finalized. I've no way to tell for sure if they are truly 3200 mAh (200 more than stock) except for my gut impression that they are the real deal.
I've had one in the phone testing standby. It's been 2 Days, 20 Hours since I charged. I snapped a few pics (maybe half a dozen), poked at apps a couple times and fiddled with settings once or twice. 53% just now. Did a reboot. Rebooted to 51% so that sounds legit (2% for a reboot) and seems like the battery app I use has the battery calibrated.