I opened up a cheap 600W charger to test its build, and found 'goo' inside
Briefly

Despite the promise of high performance and value, the 600W GaN charger proved disappointing in testing. Priced at $99, it offers multiple ports but delivered far less power than claimed, with significant unpredictability in performance. The no-name brand raised concerns about its reliability compared to established companies like Anker and Belkin. Major issues included inconsistent power output and frequent malfunctions when connecting or disconnecting devices, necessitating a full restart to regain functionality. Overall, this charger lacked the performance expected and failed to deliver the advertised capabilities.
The first red flag for me was the no-name brand—a generic name I'd never heard of before. Why does this company have 600W chargers on the market, while the big names don't?
The first issue I noticed was that the charger was erratic. I could get 140W out of one of the USB-C ports, but the other wasn't cooperating and seemed to be stuck at around 65W.
Another major problem was that plugging or unplugging devices would often cause the charger to malfunction, stopping its operation entirely. A reboot was often necessary.
No matter what I tried, I couldn't get this charger anywhere near its claimed 600W power rating. It was erratic and temperamental.
Read at ZDNET
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