BarrieR Posted January 15, 2019 Share Posted January 15, 2019 I sold a year old Inmotion V5F which worked amazingly for 2 years /1,000 miles commuting to work and putting it in my closet. Bought a new a SoloWheel Glide 2. Every time I charge, at around 75-80% the charger gets extremely hot and starts making a high-pitched noise which I assumed was an overheat alarm or could also be some type of whine. Customer support at eWheels is claiming this is normal...... For a test I put a fan on the charger during the entire cycle to keep it cool and surprisingly no funny noises from the charger. Has anyone else experienced this? Is it an issue with the charger overheating, or just a funny noise? Quote Link to comment Share on other sites More sharing options...
Smoother Posted January 15, 2019 Share Posted January 15, 2019 (edited) My King Song has that same charger (wavy pattern) It gets very hot too, but no whining noise (owner excepted). Have you tried percussive maintenance? Edited January 15, 2019 by Smoother 1 Quote Link to comment Share on other sites More sharing options...
Mono Posted January 30, 2019 Share Posted January 30, 2019 I have three chargers of seemingly the same type and they are all deadly silent, as far as I can tell. Quote Link to comment Share on other sites More sharing options...
SAS Posted March 11, 2019 Share Posted March 11, 2019 Be very, very careful. A faulty charger can cause a bad fire. Quote Link to comment Share on other sites More sharing options...
mrelwood Posted March 11, 2019 Share Posted March 11, 2019 (edited) It would be good to hear the whine to be sure, but this is likely a resonance in the transformer coils/stack that warms up inside the charger. I have a charger that started a loud whine just a minute after starting the charge, but it was fixed by treating the transformer with a electronics shielding lacquer. If you decide to open it up, don’t touch any leads/traces, as the capacitors may hold a good charge long after unplugging. And whatever substance you put in has to be able to cope with the high temperatures. The @Smoother patented ”Percussive Treatment” (tm) could help for a while, or atleast change the behavior somewhat. Edited March 11, 2019 by mrelwood Quote Link to comment Share on other sites More sharing options...
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