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Re: DTR-1 External battery pack experiments
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Subject: Re: DTR-1 External battery pack experiments
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From: barryy@netcom.com (The Net Works)
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Date: Fri, 11 Nov 1994 09:50:07 GMT
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Article: 7068 of comp.sys.pen
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Distribution: na
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Followup-To: comp.sys.pen,comp.sys.laptops
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Newsgroups: comp.sys.pen, comp.sys.laptops
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Organization: NETCOM On-line Communication Services (408 261-4700 guest)
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References: <39k4n3$rb@nyx10.cs.du.edu>
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Xref: cc.gatech.edu comp.sys.pen:7068 comp.sys.laptops:26031
Melvin Zwillenberg (mlzwille@nyx10.cs.du.edu) wrote:
: For those who may have seen some mention of experiments I was doing
: to use an external battery pack with the Dauphin DTR-1, I must report
: that the experiments have turned out unsuccessful.
: A 12V pack consisting of 8-AA Renewal rechargeable alkaline
: cells had a life of about 40 minutes. Thsi would indicate
: that the internal voltage reduction circuitry in the DTR-1 actually
: draws 2.1 amps as indicated on the a.c. adapter.
: The alkaline AA's have a capacity of 1500 mAH and
: (1500/2100)*60 is about 40 minutes.
: Thus, to have a 3 hour life, an external
: battery pack would need a capacity of 6.3 amp-hours (6300 mAH).
I don't get it. But I am interested. Are you trying to avoid buying the
optional 8 hr battery/cover pack? I just got a Dauphin DTR-1 and am
interested in what your experiments initially entailed. Thanks in addvance
Uriel
barryy@netcom.com
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Barry Yarkoni and Uriel Sigala
The Net Works - Los Angeles, CA
213-936-7809 Fax: 213-936-5563
barryy@netcom.com
References: