OESF Portables Forum
Everything Else => Sharp Zaurus => Model Specific Forums => Distros, Development, and Model Specific Forums => Archived Forums => C1000/3x00 Hardware => Topic started by: Z_Attorney on April 27, 2006, 09:45:39 pm
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Ok, so I know in the olden days, you didn't want to charge batteries unless they were nearly depleted first. But apparently li-on batteries work differently... What is the best habit to get into with charging the Z to prolong battery life?
I anticipate using the Z for long stretches of time during the work day at my desk. Is it ok to leave the Z plugged in to AC power for 9 or 10 hours at a time during the workday?
OR
Is it better to completely charge the Z, unplug from AC power, and let it run on the battery until it is almost depleted, then plug it in, rinse, repeat?
Thanks!
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AFAIK it's somewhat of a "damned if you do and damned if you don't"-situation. Even though there's still people walking around who claim that even LiIo/LiPo batteries suffer from the dreaded "memory effect" of olden days, this is simply not true.
The main factor in LiIo/LiPo wear (given decent charging circuits) is the number of charge cycles performed -- with the bonus that partial charges actually count as such against the total number of cycles typical for such a beast (usually somewhere between 500 and 1000, depending on a variety of parameters).
Obviously keeping the battery on the shelf in a cool and dry place at 60% charge will give you the longest lifespan, but then again it wouldn't be of much use to you
Every time the battery is kept for any length of time at a charge above or below that (or at warmer temperatures), its chemistry will suffer, albeit not as bad as some people will want to make you believe.
My experiences with LiIo/LiPo powered devices in the last 5 or so years more or less confirm this. So as long as the devices are not getting too warm while on mains power (laptop computers are really nasty buggers when it comes to that), I usually keep them there and return them to it for recharge when no longer needed. The results for me (including the Z, extending to cell phones, digital cameras and the like) have been most satisfying.
Best regards,
Chris.
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In my opinion its not worth worrying about, i would say the best option is to leave it plugged in, i do the same for my Z
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AFAIK it's somewhat of a "damned if you do and damned if you don't"-situation. Even though there's still people walking around who claim that even LiIo/LiPo batteries suffer from the dreaded "memory effect" of olden days, this is simply not true.
sorry but why are you so sure it is absolutely not true?
afaik there can be a memory effect for li based batts too but the good news is it can always be cleared unlike with nickel based batteries.