How does the ARM.based version compare with the old version,
in terms of speed and battery life? I would not be surpised to hear of
an 11C that was still on its original set of batteries
I haven't head about the new 12C as apparently it's quite hard to find
and identify them on the shelves, and only sold in Europe or somewhere
so far?
If the new 20B is anything to go by (and it should be because it's the
same processor) then battery life it will be a shocker.
Rated 9 months from two CR2032 batteries.
IMO HP goofed big in the design of the 20B. It works at 30MHz for all
calculations (then goes to sleep), but that means 15mA or so from the
two CR2032 batteries. This means big losses in the battery internal
resistance when doing calcs.
When I queried one of the HP designers about this on another forum, I
got the response that the CR2032 batteries have an IR of 5 ohms (IIRC)
and everything was fine and dandy. Well, they must be real special
batteries they are using because normal CR2032's start at 20ohms IR
and go up.
I can dig out the actual figures I came up with from the other forum
if needed, but it was I think something like 30% at least of the
computational power wasted in the battery IR. Crazy design.
Also, there was some concern about the low battery detection logic not
working properly.
Dave.