[BUG] Battery level fluctuations PiSugar 3 plus

[Docfch]

Environment

• Pi hardware version: zerow
• OS version: Pi OS lite
• Pisugar 3 plus
• Application version: Don't know

To Reproduce
http://192.168.1.219:8421/

Additional context
I tested with pi zero w and pisugar 3 plus version 1.7.6.
The battery level fluctuates when charging and discharging.
When i unplug my usb device from my pi zero w, he level shoots from 24% up to 30%
And also, when I plug it in to charge the level shoots from 30% up to 50%
When my battery is charged until 100%, when i plug a usb device into it the level shoots from 100% up to 94%.

[Zanop]

Its even worse with the regular pisugar3 as the battery is much smaller. When I plug the power the % shoots from 0 to 50%-60% almost instantly :)