If a NiCad pack will work in this application, so will
a NiMH. If the phone works with another pack, then
there must be something wrong with the NiMH pack.

If possible, look at the pack voltage as the phone is
turning on. It is possible that one of the cells is
dead, shorted, or inserted the wrong way in the pack.

To troubleshoot batteries with a voltmeter it helps to
put them under load.

One easy way to do this is to set your volt meter on the
highest amperage (10+ amps) range, and put the test leads
directly across a single cell (don't try this with
C or D cells!!!!). Compare the amperage reading of each
of the cells, and it will be obvious which one is bad.
If none of the can put out more than a few hundred milliamps
either they are all bad or they are not being charged.

Best regards
mark

Manco Marzio wrote:
On Wed, 11 May 2005 13:14:08 -0600, "Mark W. Lund, PhD"
wrote:


The only thing that I can imagine is that there is more
wrong with the phone than just the battery. You thought
that the batteries were worn, but something else is wrong.



but the phone works ok with another old battery that hold
the charge for just a hour or two!

So you think that it should work with external batteries?

Bye!

--
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Mark W. Lund, PhD ** Battery Chargers
CEO ** Bulk Cells and Custom Battery Packs
PowerStream Technology ** Custom Power Supplies
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