PS, My memory battery now reads 3.3 Volts, not its
normal 2.8



JJ-

You got me motivated to check mine...using the Cambridge
Aero program...with the Model 20 hooked up to your
puter...you can right click to properties and get the
backup voltage....3.9 for me, I usually leave mine
hooked to house voltage when out of the ship...never
saw anything saying that was bad.