Re: best protocol for carging a Laptop Battery

Tech-Archive recommends: Fix windows errors by optimizing your registry




"Rahul" <nospam@xxxxxxxxxxxxxxx> wrote in message
news:Xns9AC25C0ABF7016650A1FC0D7811DDBC81@xxxxxxxxxxxxxxxx
I just bought a new LiIon Laptop battery for my Dell Inspirion E1505 (dual
boot WinXP and Fedora).

I gave it my initial 10 hour charge. Now what? I started using it but
should I continue using it till the battery is drained and then recharge?
Or should I only drain it partially? If it is not drained fully how will
the Laptop learn (callibrate) itself to what the new capacity is?

Or is it recommended that I only partially discharge it? What's best for
the battery life?

Another point: How many times should I cycle it this way? In the long term
should I always wait for a full discharge; or can I charge it up from a
partially-discharged state or does it not matter?

I've gogled this but recieve conflicting advice.

--
Rahul

What was good for Nicad and NiMH is not good for Li-Ion. That first
discharge/charge cycle trains the charging circuits, it doesn't do anything
good for the battery.

Beyond that, keep it charged, don't run it to zero if you dont have to.
Don't let it get hot, that's a key factor. Li-Ions hate heat. I think there
was a discussion about this here a month or so ago...google "battery" in
this group.

I have good luck with laptop batteries by keeping them plugged in nearly all
the time, except when I need to roam. This laptop I'm typing on is 4+ years
old, and came with two batteries. They both work perfectly, at about 75% of
their original power.

-John O


.



Relevant Pages

  • Re: High-capacity NiMH cells -- very rapid self-discharge common?
    ... discharge is. ... still charge to 1.35-4, it could be the camera, but Sanyo, Panasonic, ... and the battery packs came already made up, ... (Common NiMHs, 2000 mAh, not Eneloops). ...
    (rec.photo.digital)
  • Re: High-capacity NiMH cells -- very rapid self-discharge common?
    ... discharge is. ... still charge to 1.35-4, it could be the camera, but Sanyo, Panasonic, ... and the battery packs came already made up, ... (Common NiMHs, 2000 mAh, not Eneloops). ...
    (rec.photo.digital)
  • Re: charging a fully discharged car lead acid battery
    ... >> alternator to charge it up. ... A discharged battery will read around ... >> indicated that it was in a deep discharge state, ... charger overnight and check the open circuit voltage in the morning. ...
    (sci.electronics.repair)
  • Re: Battery for Winbook XLI Laptop
    ... Certainly within three years of having this laptop, ... Any comments on the wisdom of buying a battery for this ... portable/desktop environment. ... Some lithium-based batteries have a "maximum number of charge cycles" ...
    (sci.electronics.basics)
  • Re: Battery suggestions
    ... I place it in my laptop. ... Should I charge it extra long? ... If it's a NiMH battery then you should give it one long charge period to ... Lithium ...
    (alt.sys.pc-clone.dell)