25 Jan
2013
25 Jan
'13
8:56 p.m.
On 25/01/13 20:49, Mark Rogers wrote:
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.
I don't expect you'll find any PSU will be too weak - remember, 5 watts is about the power used by the front bulb of a bicycle, or IIRC, some motor vehicle rearlight bulbs.
A Raspberry Pi (I would guess) would use only a fraction of that.
--
Tony