I have a Tracfone with a lithium ion battery. The phone is just for
emergencies and is off most of the time. How long will the battery
retain it's charge? In other words, how often should I recharge it?
The simplest way to know for sure is to try it over time with that
specific phone and the way you use it. It's not even clear what you
mean by off most of the time. That could be off 99.9% of the time
except for a real short emergency call or it could mean it's off 70%
of the time, which is radically different.
Not sure the bar that shows charge level is accurate. I try to keep
mine charged to near top level after bleeding off some minutes a couple
of months ago and seeing phone run down after maybe 25 minutes. Wife
got me a car battery cigarette lighter charger and I charge it on longer
drives. Only use when I have to but don't want to run out when I
really need it.
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