Anne,
I can't find your post that this is replying to. But I read, you said you keep your cell phone turned off, saving charge for when you need it. I keep my cell turned off but like the security of having it in case of an emergency. That being said, I charge it every couple of weeks. The mechanics of those cell phones are such, [with the clock, etc.] the battery runs down whether they're off or on. So methinks you may want to charge it every so often even though you seldom use it. IMHO! Just saying.