"Cleanbean" wrote in message
.. .
I wouldn't use a computer with the weight of a AAA or AA. Consider using
2
large watch type batteries.

John in Texas

Why? You don't even know what features it would have. I suppose the original
article should have at least hinted at what was on offer for the proposed
costs. I did not answer because for me it would really depend on what I am
getting. I would like to see a modular system. The disply could be designed
like the SRM head unit and it could have some kind of open standards bus to
add on peripherals. Let's say you have something comparable to the 710 but
with a superior pixelated display. The add ons could incluse power from any
of the systems currently available (or at least more than one). A GPS unit
could be added for certain applications and otherwise left at home.



"Reza Naima" wrote in message
om...
I'm working on designing a "next generation" bike computer. We're
trying to figure out what would be the optimal tradeoffs for the
batteries. We are looking at the following options (With
non-rechargeable batteries you can get 2x the performance):

1 AAA NiMh Rechargeable Battery : 2 hours, 12 grams
2 AAA " : 5 hours, 24 grams
1 AA " : 4.5 hours, 27 grams
2 AA " : 10 hours, 34 grams


Note that the product is designed to store ride information to be
downloaded to a PC. Thus you would want the batteries to last the
entire trip. However, you could always carry extra batteries with you
in a separate pouch for extended trips.

Let me know what you think...
Reza