Berkeley CSUA MOTD:Entry 34716
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2004/11/6-7 [Science/Battery] UID:34716 Activity:kinda low
11/4    Dear physics guru, say I have a device (phone, notebook, iPod,
        radio, etc) with a rechargeable battery. Is it best to keep
        them charged most of the time, or use them up and then charge?
        For example my cell phone has a standby of 3 days, should I
        charge up everyday, or wait till it's almost dead and then
        charge it up? Which one is better for the lifetime of the battery?
        \_ It depends on the type of battery.  For Li-ion batteries, the
           consensus seems to be that you should charge them all the time;
           they don't have a memory, and completely draining them is bad.
           \_ how about the 0859-0010, 4V 8AH Pure Lead Monoblock Battery?