I have a basic cigarette lighter type DC power source for an ASUS Netbook
computer. It will provide a filtered / regulated 12.8 volts at 3 amps.
Can anyone advise if this unit will operate my IBM Thinkpad R50e
computer? I am not concerned about charging the battery, but I am
interested to find out if this adapter will at least operate my Thinkpad
whild on extended dry camping without AC.
Being on the cautious side, I hesitate to plug it in and find out.....
On Aug 22, 5:53*pm, Ed <Huckleberry_REMO...@bigvalley.net> wrote:
> * I have a basic cigarette lighter type DC power source for an ASUS Netbook
> computer. *It will provide a filtered / regulated 12.8 volts at 3 amps.
>
> * Can anyone advise if this unit will operate my IBM Thinkpad R50e
> computer? * I am not concerned about charging the battery, *but I am
> interested to find out if this adapter will at least operate my Thinkpad
> whild on extended dry camping without AC.
>
> * Being on the cautious side, *I hesitate to plug it in and find out......
>
> * *Ed
>
> .
I would not chance it...if you look at your AC "brick" it most likely
says: Output 16V.
You need a specific adapter, DC to DC.
On 23 Aug 2009 17:28:57 GMT, Bert Hyman <bert@iphouse.com> wrote:
> In
> news:ecaf9297-752b-4d01-b1bf-c8a4a21c83b2@c29g2000yqd.googlegroups.com
> Bob Villa <pheeh.zero@gmail.com> wrote:
>
>> You need a specific adapter, DC to DC.
>
> Easier to find, and likely cheaper, is a small inverter that takes 12V
> in and puts out 120VAC.
For $56 including shipping the OP can get one of these:
Thanks for all the response. I have decided not to rick trying it. The
adapter I have only can handle 3A max, and I do not know how much current
the Thinkpad draws.... especially if the voltage is only 12.8 volts. I
doubt I would harm my Thinkpad, but I don't want to risk damaging my cheap
1$ 12V power supply as then I would have to order another from EBAY / Hong
Kong and have nothing in the mean time for my little ASUS Eee PC .
Ed wrote:
> Guys,
>
> Thanks for all the response. I have decided not to rick trying it. The
> adapter I have only can handle 3A max, and I do not know how much current
> the Thinkpad draws.... especially if the voltage is only 12.8 volts. I
> doubt I would harm my Thinkpad, but I don't want to risk damaging my cheap
> 1$ 12V power supply as then I would have to order another from EBAY / Hong
> Kong and have nothing in the mean time for my little ASUS Eee PC .
>
> I'll go with one of your suggestions, I think.
>
> Ed
>
>
>
>
> .
>
FYI - I have a Thinkpad R52 and the adapter output is 16 VDC and 4.5 AMP
Ed wrote:
> Guys,
>
> Thanks for all the response. I have decided not to rick trying it. The
> adapter I have only can handle 3A max, and I do not know how much current
> the Thinkpad draws.... especially if the voltage is only 12.8 volts. I
> doubt I would harm my Thinkpad, but I don't want to risk damaging my cheap
> 1$ 12V power supply as then I would have to order another from EBAY / Hong
> Kong and have nothing in the mean time for my little ASUS Eee PC .
>
> I'll go with one of your suggestions, I think.
>
> Ed
>
>
>
>
> .
>
Consider the following:
> On Aug 23, 6:54*pm, Ed <Huckleberry_REMO...@bigvalley.net> wrote:
> "I don't want to risk damaging my cheap
> $1 12V power supply"
>
> It's just an adapter/connector (fused at best).
>
> bob_v
Actually, Bob, its got active circuitry... is current limited at 3A.
Pretty good deal for one US dollar. ( plus shipping )
>>
> FYI - I have a Thinkpad R52 and the adapter output is 16 VDC and 4.5
> AMP
That's why I hesitated to try my 3A max adapter. However, one must
realize that Thinkpad's 4.5 A is designed to both run the laptop and
charge the battery at the same time.. which still leaves the question of
how much the Thinkpad alone draws.
Running IBM Thinkpad R50e off 12 volts 
Linear Mode
