All depends on....
It depends on the Battery type, brand and your average use of the unit itself
Do yourself a favor and buy NI MH
and the AC adapter from c. Shack and of course an external charger....
I did And I have SOO much money...
I have a Pro 97 and a BCD 396T from Uniden
ANd I use NI MH's in both,,,
Forgive me for sounding like tree hugger buuut,
think about the Enviroment:lol:
Oh! andit depend on what you are monitoring as well
ya nknow how busy/active they are trunking, or conventional etc
With the Pro 97 If you are monitoring a Conventional Channel theeen
it goes into battery save mode..
So does tha BCD396T
anyhow
Hope this helps,
Crista