This is the equivalent BTR-4000 battery for your Audiovox CDM4000 CDM4500 CDM9000  Cell Phone

 

Outline Model Type Capacity Price 
Audiovox CDM4000 CDM4500 CDM9000 slim Cell Phone Battery BLi-653-.9 Li-ion
(standard)		 3.6v
950mAh		 $30.69 Cdn
($26 US)
Audiovox CDM4000 CDM4500 CDM9000 standard Cell Phone Battery BLi-653-1.4 Li-ion
(extended)
3/4" thick		 3.6v
1400mAh		 $30.69 Cdn
($26 US)