Ok I broke out my old uniden sportcat 150 , because I finally bought a
new battery for it.
Here is the situation...... when I plug in my wall charger into the
sportcat.... the voltage drops down to 1.38 (using the WX and L/O
battery monitoring trick) from 1.58 . Also when i am scanning just
using the battery pack & plug in the wall charger the "Batt" icon pops
up & a beep goes off every minute or so.
I no longer have the manual for the sportcat so I am not sure what
this means.... I assume that the batt icon & beeping means that it is
the low battery indicator.

Also I would like to know IF the sportcat can operate with the battery
pack out of it & the wall chager plugged in? Because it wont for me.

I am trying to figure out if I have a wall charger that is bad or the
female charging jack(on the sportcat) is bad.

any help?