3

I plan to use a USB power bank to power my Raspberry Pi 3 Model B, but I need to know the battery level/percentage. There is the battery icon and percentage in the top right corner. Does this correctly give the battery percentage of my external power bank? (I highly doubt it)

If not, is there a way to do so without additional hardware? Or are there special power banks that can give the battery level?

TanMath
  • 199
  • 1
  • 3
  • 12

1 Answers1

3

Only batteries supporting the Smart Battery Standard over SMBus/I2C can be used with Raspbians Battery Monitor applet. The only battery supporting this (AFAIK) is built into the pi-top Laptop.

No Raspberry Pi can correctly measure its own input voltage without additional components.

flakeshake
  • 6,244
  • 1
  • 16
  • 35