Its too windy to fly here on the east coast of Florida, so maintanence
time. (Yes, I know, what a wimp. I can and have flown contests in pretty
bad wind but why risk a plane when there will be better days soon.) The
question is about batteries.  I need to replace a number of sailplane
batteries.  They all hold a square pack of AA size.  It appears to me
that there are only two packs which make sense: the 1100MAH NiCd and the
1650 NiMH. Both are nearly identical in cost, weight and size.  I have
the appropriate charger which is rated for either and does a good job in
a reasonable time.  Both cells are made by Sanyo which usually means
excellent reliability and service life.  Sailplanes generally don't draw
extreme servo currents so I expect the hydrides to be sufficient in that
respect - the nicads are usually superior in high current applications. 
What do you think?  Any data / experiences to suggest the better choice? 
Thanks for your thoughts,  Jim MacLean
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