[QUOTE=Blue2u;2118766]I noticed that, but then was concerned with battery life.

I guess I could just try it and see how much it uses compared to not..............................[/QUOTE
Shop's quite right about best practice with any reader with these batteries - never power off (well, only if you're not going to use it for 2-3 weeks or so.) just put it to sleep .
And let it get to 1-2 bars before recharging - and a wall charger is best, ( a PC can drain the battery rather than charge up if left on overnight, say.) and it can be left on charge overnight ....you can't overcharge them with a mains charger.
Doing this will "educate" the battery - extend the operating efficiency.
A
real no-no is running it down completely, that definitely makes 'em poorly.........
I've followed this pattern with all my Sony's, and a Bookeen, and in each case , it has significantly lengthened the time between top-up.