Barnyard BOb wrote:

Being a penny pincher, my solution many years ago was to invest
in 9 volt Ratshack Nickel-Metal Hydride RECHARGEABLES.
Although hardly cheap, I've not had to buy more batteries
in close to a decade.They paid for themselves in a month.
Perhaps you are doing likewise.

I tried, but it wouldn't power up the headset. The voltage when fully-charged
is a bit low, but when you consider an alkaline will power the headset until it
gets so low it'll hardly tickle the tongue, I don't know what's happening. It
might be that the impedance of the rechargeable is different than an alkaline
and the circuitry is thrown off by it.

Ron Wanttaja
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My Flightcoms do fine, voltage wise, down to the last NiMH drop...
Another reason for me to be happy I didn't spring for the Denali??

FWIW...
Like you, I ran into a situation with a smoke alarm where a 9v lithium
would not work... and it's voltage could be higher than an alkaline.
My hopes were to go keep from changing batteries annually.
A 10 year lithium application seemed like a grrreat idea.

- Barnyard BOb -