If you leave your cell phone charging over night. Will it do any damage to your battery, or eventually shorten the life of the battery.

My folks and I have both been using dinosaurs for cell phones due to the fabulous contract (no monthly service - charge only for use). Just received one new phone (new Motorola) because of a switch from analog to digital. Both old units were Motorola and I had a lot of problems with battery drainage so never left it on (call out only). How do the batteries on the new phones work? I would really like to leave my phone on when I go shopping for my Mom so she can call and add things to the list. Thanks.

cell phone batteries and their slots in the phone have 3 golden metal contacts----i'm guessing 2 are for + and - ....wondering what the middle one is for?

My daughter has a TON of pictures on her cell phone, and her cell phone battery runs out much more quickly than my identical phone, even when she's not using it. I know this is a stretch, but is it possible that all those pictures use more battery power? She also uses music she recorded on her cell phone as her ringtone. Does that use more battery power than a normal ringtone?