Charger makes ticking sound and heats up significantly

PDM

New Member
Region
Europe
Good day

Recently, when i'm charging my battery, when the charging process is halfway, the charger begins to make a ticking sound.
It's just a clear *TICK* every 6-7 seconds.
Also, the charger (not the battery) starts heating up in this manner that I can't put my hand on it for more then a few seconds.
Additionally, I think that the battery doesn't get charged all the way to 100% anymore (more like 80-90%).
Does someone has experience with this or know what the issue could be?

The battery itself is almost 4 years old and the charger 6 months.

Thanks a lot in advance for the feedback!

BR

Philip
 

tomjasz

Well-Known Member
Region
USA
City
Minnesnowta
If the charger is making noise and getting that hot you have a charger problem. I can’t address the battery, but I’d sure be checking the voltage to make sure the bad charger hasn’t over charged the pack. There should be a BMS protection circuit for overcharging but not knowing any battery details we can only guess. I’d definitely stop using that charger. Even my cheap $10 fanless chargers don’t get that hot.

Take battery voltage measurements with a multimeter!

Posting some charger details and additional battery and system details.