Cordless phone batteries generally last 1-3 years with normal use. Cordless phone batteries are typically NiCad or NiMH. While memory issues may develop with NiCad batteries you can reduce the memory problems in your cordless phone battery by fully charging and discharging several times. The best way to do this is to use or leave your cordless phone off the base unit until it's dead. Then fully charge again. After a couple of times doing this you should regain some of the capacity lost to 'memory' problems.

Turning down the ringer and keeping the cordless phone off speakerphone will make the cordless phone last a lot longer while on battery reserve. Try to keep a close distance to the cordless phone receiver to avoid losing a signal and draining the battery quickly. Once the cordless phone battery is fully drained on power, make sure it is fully charged before re-use for a longer battery life. This prevents NiCd batteries, and to a lesser amount NiMH batteries, from having a “memory effect” problem. “Memory effect” happens when a cordless phone battery is not fully discharged and then over time it “forgets” it has additional battery capacity beyond the point when it was most recently discharged. “Memory effect” can be corrected for NiCd and NiMH batteries by fully discharging and recharging the cordless phone battery 2-3 times upon first use, and