Legend Cx battery problems

I am using re-chargeable batteries and they seem to last about a week
before going dead.That is without using the GPS during that time.
Is this a known problem?
I will just keep them in a holder and insert when needed.
Thank you for any help.

The performance of rechargeable batteries is dependant on a number of
things.

1. The type and quality of the rechargeable batteries.
Use NiMh batteries not NiCd in the highest MAhr (milliamp-hour) rating
you can get.
In an AA cell I have some 2650 MAhr Duracells which work quite well in
my 60CSx.
This rating can vary quite a bit and is sometimes hidden on the back of
battery packaging.
The shelf life of a charged battery is very dependant on battery
quality.

2. The quality of the Battery charger.
The best chargers charge each cell separately and can charge a single
cell at a time.
This is important because each cell charges and discharges differently
and must be seperatly
charged if you want the highest performance from your batteries.
Some of the less expensive charger require you to put in a minimum of
four cells or two cells.
The best charger I have forund to date is the La Crosse BC-900 which
also tests battery performance.

I get about 16-20hrs of life out of my AA cells in my 60CSx.
This depends vey much on how much you use the back light in the screen
I once had a Legend Cx and it should give you longer life since it draws
less current

Leaving batteries in a charger is not a good thing. If not in use it is best
to charge and dischage them periodically
Although NiMh cells don't not have as serious a dischage memory problem of
the older NiCds,
they are based on a similar technology and most manufcatures recomend
periodic charge and dischage cycles n the batteries.

Hope that answers your questions

Thanks for the info.
I just ordered the La Crosse BC-9009 and will hope to get longer shelfe
life with better charging and discharging.
I use so many of those AA batteries in rc model transmitters, gps, cb and
family transceivers that I need a good charger.
Again, thanks for the detailed reply.

You should consider using the new type of nimh batteries pioneered by
Sanyo. The name is eneloop. Google the name and you will find out the
benefits to using this type of batteries. On my 60csx they last 16
hrs. and there is no need for periodical charges and discharges. I
have a pile of 2600 ma nimhs that cant match the 2000ma eneloop. Rudy.

The one I've recently found that addresses this problem is called ReCycko
http://www.gprecyko.com/en/index.html

With digital camera, front & rear lights for 3 bikes, camping lights,
various toys and 2 Tamiya cars that need 12xAA each as well as the GPS ...
the other benefit I found is no need to put in an initial charge - ready for
use immediately, and they so far have stayed that way after using and
charging.
We'll see what age does to them...
Lol