Extend-A-Phone Cordless Phone Batteries are available for almost every model. With over 250,000 products, Apex Battery offers a complete line of both compatible and brand name replacements for Extend-A-Phone Cordless Phone Batteries. We also offer compatible replacements for most other Extend-A-Phone Cordless Phone Batteries. All of our products come with a 12 month warranty and a 30-Day Money-Back guarantee*.