My cell phone battery simply quit; it wouldn't even charge and stopped without warning. After calling the provider they said they don't ""sell batteries"" but suggested I get a new phone with a new plan. I checked Amazon and found the batteries. The cell phone is now charging and soon I'll have my cell phone working, same contacts with all photos intact! Now, I don't know how long the charge will hold but I am relieved to have it working soon after the charge is completed.