Battery calculation is off by ~25%

[Wojciech Górny]

Whatever battery i’m using, the EggRider always displays over 20% of battery capacity, even if battery voltage is below level set for 0%, and/or the controller has cut it off.

I’m using BBS03 and three 17.5Ah batteries (48V <<0% at 41V>>, 52V and 52V <<both 0% at 45V>>). All batteries have been calibrated in app for full voltage.

It feels like battery is calculated based on some curve, with error growing towards bottom part.

Version 2.5.60

[George Banea]

Hi, could you please provide a screenshot of your battery settings and if possible export a ride when connected with the app?

[Wojciech Górny]

Weirdly i can’t seem to capture it when the app is not in background and i’m just riding to deplete the battery - i’ve attempted twice, and both time it shown correct value “at the bottom” (around 25% for 48.5V, in 52V battery). I’ll try to find out how to reproduce this bug on a slower paced track, maybe it’s somehow related to the amp limits and/or the road/offroad setting.

[George Banea]

I am closing this as it is most likely to do with the battery settings.

If it ever happens again, please use the latest firmware v2.6.49 provide a battery settings screenshot and a trip export as follows: ride for about 20-30 minutes (preferably under high power), stop and keep the phone connected for another 20-30 minutes then stop the ride and export the trip.