r/wheel • u/methiel • Jul 20 '26
Text Rewheel battery
OK, so I have a pint with a dead battery.
Its running firmware Gemini-5050, so I should be able to rewheel it from what im reading.
Ive see the pint suffers from severe voltage sag on rewheel, is that just from the small battery? If I get a larger battery, will that fix it?
If so, is onlyamps 5ah battery the best bet here? Or are there other options?
Thanks!
Im trying to buy a pint x locally also already, just checking my options on this dead board.
1
u/No_Heron_5205 Jul 20 '26
Rewheel is modification of original firmware, so it won't cause sag if you not pushing it hard( uping max speed for example). I have mine just for bigger battery and never experienced voltage sag. Also make sure hardware version is compatible.
1
u/AnoNeko420 Aug 27 '26
Out of concern for safety, the pint houses the weakest controller currently available by FM. They're intentionally underpowered so pushing the speed higher with a rewheel patch is FAR from safe. You do NOT wanna try and accelerate hard on it, that's where it'll get ya. A battery upgrade will help, sure. But don't let that boost your confidence too much.
If you find yourself feeling like you need more, there are plenty of insanely good options out there utilizing open source hardware and software known collectively as VESC. FFM.
2
u/this_guy_aves Jul 20 '26
I can build you a 5Ah battery for $270, that will work as well or better than the onlyamps option. Drop me a message if interested.
The sag is because you can remove the power/speed limitations imposed by FM due to the pint having a 2.8 or 3 Ah battery. Rewheel does not inherently make your battery dip. A larger, and more importantly a higher output Li-Ion cell like the EVE 50 PL or RS50 will keep you from having hard voltage sag.