View Single Post
Old 06-30-2010, 02:35 PM   #13
Shaggy
Wizard
Shaggy ought to be getting tired of karma fortunes by now.Shaggy ought to be getting tired of karma fortunes by now.Shaggy ought to be getting tired of karma fortunes by now.Shaggy ought to be getting tired of karma fortunes by now.Shaggy ought to be getting tired of karma fortunes by now.Shaggy ought to be getting tired of karma fortunes by now.Shaggy ought to be getting tired of karma fortunes by now.Shaggy ought to be getting tired of karma fortunes by now.Shaggy ought to be getting tired of karma fortunes by now.Shaggy ought to be getting tired of karma fortunes by now.Shaggy ought to be getting tired of karma fortunes by now.
 
Shaggy's Avatar
 
Posts: 4,293
Karma: 529619
Join Date: May 2007
Device: iRex iLiad, DR800SG
Quote:
Originally Posted by Maggie Leung View Post
Does anyone know how long a fully charged Kindle can go between charges if you don't use it? I'm hanging on to my Kindle, but I'm doing all my reading on iPad, it turns out. I wanna know how frequently I have to charge my Kindle to keep the battery from croaking.
Amazon says 2 weeks with wireless turned off. I don't know how much of that is active use vs standby. It might be longer if you're not using it at all.

However, there is a difference between how long to wait before you need to charge the battery to keep it from going dead, vs how long to wait before you need to charge the battery in order to preserve it's long term life expectancy.

I don't know what type of battery the Kindle has off the top of my head, but most of these devices typically have a lithium-ion battery (or a variant of one). These types of batteries do better if you don't wait until they're fully drained before charging them. A big charge cycle like that can actually reduce their life expectancy. It's better to top them off more frequently, requiring a smaller charge cycle, and only let them fully drain once in awhile in order to keep the meter calibration from drifting. Personally, I would only let it get down to about 50% - 60% before charging, then after doing that 30 or so times, let it drain completely once, then start topping off for 30 times again... etc.
Shaggy is offline   Reply With Quote