Re: iPAQ battery life

[Jim Noble <yahoo-groups@xxxxxxxxxxxxxxxxxx>]

Kevin Hawkins wrote:

> A 4150 and a 5450 -   just thought as a design they might (should) be
> intended to survive over a typical 2 week holiday period.if left off
the
> charger and not used :-(


The problem is these things are never properly "off". They just
stop the
cpu clock and put the DRAM in self-refresh mode, which consumes power
(albeit a small amount).

Flash ram is so cheap these days, they should just be putting in a
goodly amount of the stuff so that memory contents can be offloaded to
non-volatile storage when you want to turn the device off for a bit. My
Sony Clie has this feature, and can survive significant periods turned
"off". It just takes a little longer to turn it back on.

Jim