From: Ed Kummel (tech_ed_at_yahoo.com)
Date: Thu Mar 20 2003 - 10:09:01 PST
The number one killer of rechargeable batteries is
heat. Charging a battery generates heat. All
rechargeables have a finite number of charges in them.
NiCads, 1000+, NiMH, <1000, Lion <500 (note, these
numbers are a basis, not the rule...ymmv)
Armed with this knowledge, if you trickle charge a
battery only when it is dead, the battery will last
longer than one that is fast charged on a regular
basis.
Ed
web/gadget guru
http://newton.tek-ed.com (download Newton packages)
http://npds.tek-ed.com (my NPDS server and it's new
subdomain)
--- Nathan Turnage <nturnage_at_andadv.com> wrote:
> It is always better to fully drain a battery before
> recharging, just
> like it is always better to read the instructions
> (but who does that).
> NiMH batteries can deal with being charged at any
> time, however, you
> should make a habit of darining your batteries on a
> regular basis to
> keep them workig up to their potential.
>
> To properly answer your question: No a battery won't
> "wear out" more
> quickly if it is frequently run until dead before
> recharging. If fact, I
> would think the battery would "like" it more, and
> therefore last longer.
>
>
> -Nate
>
>
> Chris Searles wrote:
> > on 19.03.2003 23:19 Uhr, Nathan Turnage at
> nturnage_at_andadv.com typed
> > vigorously:
> >
> >
> >>No, the battery on the Newton 2x00 does not have a
> memory. The Ni-Cad
> >>(nickel cadmium) batteries in the 1x0 models did
> have a memory and had
> >>to be fully drained before being charged. However,
> the 2x00s use NiMH
> >>(nickel metal hydride0 batteries that don't suffer
> the same problems.
> >
> >
> > I wasn't thinking so much of the memory effect
> (which I know NiMH batteries
> > have fewer problems with) but more of the total
> lifetime of the battery,
> > i.e. do such batteries "wear out" more quickly if
> they're consistently run
> > until drained/dead as opposed to being recharged
> prior to that point?
> >
> > Thanks,
> >
> > chris searles
=====
"If the nation escalates to 'red alert', you will de assumed by athorities to be the enemy if you so much as venture outside your home."
- Sid Caspersen, NJ's director of the office of counter-terrorism
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