That moment when I bought a NOS NEC MobilePro 900 WinCE Handheld PC off eBay due to unfulfilled childhood/teenage desire-fueled nostalgia.
Amazingly, I get at least 4 hours of runtime off the never-before-used LiIon pack. I say "at least" because I haven't actually tried to use it longer on battery yet.
Oh, and I have an insane JDM Sharp HPC coming soon.
@techfury I get about 3.5-4.5 on my 900 that's heavily used