Hello folks. I took my macbook to repair store and they’ve found several little coffee drops on logic board. My mac is second hand, bought September 2019. I’ve never drop anything on it so it had to be done by previous owner. Problems occured after 8 months of using. I upload pohotos to show you how it looked. It had to be cleaned. During this some elements just fall out and needed to be replaced. After whole process everything works fine, mac stopped battery darining. It cost 1000 PLN (polish currency) which is about $250.
PROBLEM SOLVED!