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- Newsgroups: comp.sys.mac.hardware
- Path: sparky!uunet!gatech!rpi!usenet.coe.montana.edu!news.u.washington.edu!uw-beaver!robertb
- From: robertb@cs.washington.edu (Robert Bedichek)
- Subject: Re: powerbook battery lif
- Message-ID: <1992Sep9.195245.6911@beaver.cs.washington.edu>
- Sender: news@beaver.cs.washington.edu (USENET News System)
- Organization: Computer Science & Engineering, U. of Washington, Seattle
- References: <laogtlINNab3@nada.cs.utexas.edu> <5167@gold.gvg.tek.com> <1992Sep8.205809.9418@Princeton.EDU>
- Date: Wed, 9 Sep 92 19:52:45 GMT
- Lines: 44
-
- In article <1992Sep8.205809.9418@Princeton.EDU> awolfe@moo.Princeton.EDU (Andrew Wolfe) writes:
- >In article <5167@gold.gvg.tek.com>, bryanh@stout.gvg.tek.com (Bryan Hilterbrand) writes:
- >|> In article <laogtlINNab3@nada.cs.utexas.edu> benkei@cs.utexas.edu (William Kent Richards) writes:
- >|>
- >|> In my manual, they say to NEVER completely drain a PB100's battery. It
- >|> damages the lead-acid batteries to drain them all the way, and they
- >|> won't hold a charge as well after that.
- >|>
- >|> They also say to completely drain the PB140 and PB170's memory once a
- >|> month (or so). They claim that it aids the lithium batteries, and they
- >|> will hold a charge better if you do this.
- >|>
- >|> By the way -- THIS IS FROM MEMORY; check your own manual before doing
- > --------------------
- >|> any of this!!
- >|>
- >...
- >|>
- >|> Bryan
- >|>
- >|>
- >|> Bryan Hilterbrand bryanh@stout.GVG.TEK.COM | /\ /\
- >|> Grass Valley Group, Production Systems Division | __/ G\/G \__
- >
- >Need to work on that memory a bit :-)
- >
- >The PB100 uses Silver-Hydride batteries. The others use Nickel-Cadmium.
- >--
- >--------------------------------------
- >Andrew Wolfe
- >Assistant Professor
- >Department of Electrical Engineering
- >Princeton University
-
-
- Sorry Andrew, it's your memory that needs the work. William is right,
- the PB100 uses the lead acid according to the owners manual. This is
- also consistent with the PB100 being an inexpensive model and with the
- weight of the battery. The rest of the PB series does not use
- lead-acid, they use NiCads I believe. William is also correct in
- saying to not completely discharge the PB100's battery. NiCads like to
- be completely discharged, l-a batteries hate it.
-
- Robert Bedichek
-