I'm running SP3. And for me an issue with the battery meter is not related to uploading new settings. The battery discharges to 3.5V (the meter shows about 20%) -> mod goes to sleep -> after turning it on the battery meter shows 0%. After that the mod is working fine until full discharge, but the meter is showing 0% (sleep mode does not reset capacity). All of my mods (Panzer, Triade, Reuleaux) have this issue.