Why is my samsung a8 battery draining in seconds

[Android Central Question]

Started recently from 19 then at 20 athen at 40 amd later at 70 perc my phone jumped to 0 perc but was draining normally now it drains all its battery at once when disconnected in seconds i took it somewhere and the guy said vharging is burnt but i guess its just pushed a little inside due to which putting on the charger becomes difficult pls help what should i do

 

[belodion]

Take it to a repairer?