On 25 January 2013 19:16, Anthony Anson tony.anson@girolle.co.uk wrote:
If they don't deliver enough power the potential difference between the + and - lines will be below the stated voltage figure. This will not harm your device, but may destroy your charger - given time.
Thanks. I'll cut an old Micro-USB cable up and take some voltage readings while charging a phone and see how they compare.