Hey I have a Switch motherboard here which drains the battery very fast and also in sleep mode very fast.
It isnt the Battery, i tested with another battery and i placed the Board in a working “case”. It is definitely the board.
Ive cleaned the wole board with Ipa.
The switch is working and it gets a little warm in sleep mode around the cpu and the cooler.
I hope someone can help me 
Hey there,
If the CPU gets warm, are you really sure that your switch is in sleep mode? Sound more like a software problem to me…