IphoneMy iPhone cube overheated when I used it to charge an external battery-which which wants 2.0 amp charger- overheatedA. Using usbUSB current meter the battery was pulling 1.5 ampsA from the cube which caused it to quickly overheat. IphoneiPhone connected to cube pulled 0.7 ampsA. When
When the external battery was connected to usbUSB port on an old xpXP computer it pulled only 0.7 ampsA during initial charging and even dropped to 0.6 ampsA when 75% charged. So- it does appear
It seems that connecting the iphoneiPhone cube to a non-appleApple source which wants 10 wattsW (2 ampsA) rather than 5 wattsW (1 ampA) can cause the cube to attempt to deliver too much current and cause it to overheat and fail.