>>64382061
I think he is referring to that Infitac FMP13. It's cool on paper but has a number of issues.
1. Battery life as you described. Thermals are generally poor on runtime and while you CAN run USB-C to this thing, running a powerbank strapped to your pistol or maybe your forearm is jank. That's intended for using the FMP13 as a secondary rifle sight. Like you said, if it dies it is useless and if it's on a handgun, it is blocking your sights. There is a notch up top you can use for very close shooting, but that's purely last ditch.
2. Sensor resolution is 256x192, which is terrible and bottom-barrel by today's standards. You'll be staring at pixels in low-light situations trying to figure out if that's your granny getting a cookie from the kitchen or someone trying to shank you for your 75" flatscreen.
3. Screen-type thermals like this and the SIG ECHO lineup tend to backlight your face, which is terrible in situations you'd probably be using a handgun in.
4. Your field of view is jank because you can't treat this like a regular red dot. You're looking at a screen.
5. All of the above for $799.
>>64382007
For above reasons and more, definitely keep "pistol" in quotes there. It's really meant as a supercompact thermal you stick on top of an LPVO or MPVO and use as a "is SOMETHING there" detector, then use your primary optic to ID.