We use multiple sets of rechargeable AA batteries and swap them between
missions and get them charged. So far that had been working out well.

Thanks.
Purna

On Sat, Oct 9, 2010 at 1:10 PM, Eric Palmer <[log in to unmask]> wrote:

> We start to change them more frequently when we are working mission runs
> that need repeatable runs. Then we watch the votage and reliability. The
> batteries are still very usable. So the team parents get them and use them
> for remotes, calculators, toys etc. Wasteful to do otherwise.
>
> Sent from my iPhone
>
> On Oct 9, 2010, at 12:50 PM, Laura Dysart <[log in to unmask]> wrote:
>
> > Last year we learned the lesson of battery power and consistency in
> missions. this year we decided to use the rechargeable and just fully charge
> it before each practice session. It has been behaving strangely at times and
> then I noticed someone's comment throu VADCFLL on the memory of the
> rechargeable being iffy and not so reliable and consistent on missions.  The
> person who said use fresh double AA's- do you swap them out at every
> practice?  It seems so wasteful but seems like one of the few solutions for
> reliability- with one mission building on another- the loss of power over
> time throws the whole larger program off.  Our group gets pretty frustrated
> by the change in behavior- it's ok to have that be the lesson- but it's hard
> to make progress.  We also learned the lesson of saving as you go along-
> team members worked for 2 hours- had a good program- someone stepped on the
> power swithc for the computer- bye-bye program- learn the hard way! Laura
> >
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Venkata P. Alla
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