Proper care and maintenance will prolong the life of any product, including your rechargeable batteries. With appropriate care and use, you should expect 2-7 years from most rechargeable batteries. Rechargeable cordless phone batteries can last 1-2 years with the right use and care.

We'd recommend that you replace the batteries in your handsets every two or three years. That way, the handsets won't keep dying on you in the middle of a call. To help your batteries last a little longer, you should let them run down completely about once a month, and then recharge them to maximum capacity.

Many cordless phones take standard rechargeable AAA batteries and replacing the battery is as simple as sliding the back off the phone and replacing the AAA batteries with new ones as you would with any other AAA battery device like a TV remote control.