"a1esta" wrote in message
ups.com...
Most manufacturers will state that the life of batteries in terms of
the number of charging and discharging cycles. I remember reading from
somewhere that rechargeable batteries has a shelf life even when the
batteries are not used.

For e.g., when the batteries are not being used, they will still be
"dead" say after 24 months or so. I also heard that for infreqently
used rechargeable batteries, it is necessary to store them at a very
low temperature (about 10 deg. C) in order to to prolong the shelf
life.

I intend to buy a cordless screw driver mainly for use in driving
screws on cabinets, walls etc. And I will use it only about 3 to 4
times per year. And if the batteries really have shelf life, it would
not be econimcal. Would it be better to get the corded tool instead?

Thanks!


After my Makita 7V went bad I bought the 9.6V Makita the batteries
seemed last at best 2 years I did use it a lot. After that I bought a Dewalt
14V they said the batteries could be charged about 1200 times. well I'm a
little over two years no where near 1200 and they charge but don't last
long. So hear I am again $50 for each battery or a whole new set up. I also
think Dewalt tools are way over rated. But now I just read about a new
design drill. what's deferent it has a electrical type cord attached to it,
then that hooks into a central power supply ( they do make extra length
cords you can add to it) The good part is you never have to charge it and
they say it should last over 20 years and best of all there actually
cheaper.