On Mon, 20 Nov 2006 21:07:09 +0000,
(D.M. Procida) wrote:

A leaflet that arrived with the electricity bill claims that our mobile
phone chargers will be sucking up 100kWh of electricity a day, whether
they are charging a phone or not.

What size battery would would suck up 100kWh a day? And who would I be
able to reach on the mobile phone?

Daniele

Picking up the nearest charger at hand, a Nokia - input rating 4.8VA -
call it 5W - that is on full load.
5W for 1 hour = 5Wh
5W for a day = 5 * 24 = 100Wh approx = 0.1kWh

now 1 unit = 1kWh

at 9p/unit cost = 0.9p/day

that's on full load.


--
Regards, Paul Herber, Sandrila Ltd. http://www.pherber.com/
Electrical for Visio http://www.electrical.sandrila.co.uk/