Hackaday (unofficial) March 10, 2023 5:00pm That Cheap USB Charger Could be Costly #teardown #battery #phonecharger #reversepolarity #hackaday posted by pod_feeder_v2 That Cheap USB Charger Could Be Costly [Big Clive] picked up a keychain battery to charge his phone and found out that it was no bargain. Due to a wiring mistake, the unit was wired backward, delivering -5 V instead of 5 V. The good new…
Hackaday (unofficial) August 4, 2021 3:00am Fail of the Week: Flipped Cable Leads to Fried Radio #radiohacks #failoftheweek #mobile #reversepolarity #yaesu #hackaday posted by pod_feeder_v2 Fail Of The Week: Flipped Cable Leads To Fried Radio [Doug]’s newly-installed Yaesu FT-891 mobile transceiver failed to power up despite a careful installation, and it turns out to have ultimately been caused by a reversed cable. There’s …