RE: TP 770E AC power Question

New Message Reply Date view Thread view Subject view Author view Attachment view

From: Bill McVicker (mcvick_at_ulster.net)
Date: Sat Jun 13 1998 - 20:04:58 EDT

I LOVE IT, The screen, the speed, the memory (upgraded to 160Meg). I'm
running NT 4.0 and am having a ball

So your saying that leaving the battery in and running off of AC won't hurt
it?

> -----Original Message-----
> From: Stuart Biggar [mailto:Stuart.Biggar_at_opt-sci.Arizona.EDU]
> Sent: Saturday, June 13, 1998 7:48 PM
> To: mcvick_at_ulster.net
> Subject: Re: TP 770E AC power Question
>
>
>
> > From owner-thinkpad_at_cs.utk.edu Sat Jun 13 16:08 MST 1998
>
> My experience with a 755CX and a 765D says that you run plugged
> in except for when you need the battery. It used to be with
> NiCad (and NiMH to a lesser extent) you needed to run the battery
> down almost completely and then recharge fully or the battery would
> develop a "memory" effect that reduced the effective charge. For
> example for a battery with a 2 hr life, if you ran it for only 30
> min and then recharged, after a while the battery would only last
> 30 min. You could recover it by running it to full discharge and
> full recharge a couple of cycles. (Years ago when I was flying
> a helicopter with a BIG NiCad starter battery, the battery shop
> removed the battery every 30 days to cycle it to regain its full
> capacity. This is of course a completely different application
> but the effect is the same - you want full capacity so you have
> to treat a NiCad correctly - if you do they work well and can
> demonstrate lifes of about 1000 full charge - discharge cycles.)
>
> Current LiIon batteries have virtually no "memory" effect and they
> have more power per weight so they are used instead of NiCads now.
> The do cost more however :-)
>
> I'm waiting for a 770E (it has been ordered). How do you like yours?
>
> Good luck,
>
> Stuart
>
> ------------------------------------------------------------------
> -------------
> Stuart F. Biggar Phone: (520) 621-8168
> Remote Sensing Group FAX: (520) 621-8292
> Optical Sciences Center
> University of Arizona
> Meinel Building
> PO Box 210094
> Tucson, AZ 85721-0094 Internet:
> Stuart.Biggar_at_opt-sci.arizona.edu
> ------------------------------------------------------------------
> -------------
>
> > Thanks in Advance
> > Bill
> >
> >
>

New Message Reply Date view Thread view Subject view Author view Attachment view

This archive was generated by hypermail 2.1.3 : Thu Jan 23 2003 - 09:54:08 EST