Thread: Universal DC-DC InCar Notebook Adaptor

Hi

I see there has been no reply so I thought i would try and give you more info, I am looking to buy a universal car charger for my laptop, will the below one do it?

http://cgi.ebay.co.uk/ws/eBayISAPI.d...723949365&rd=1

I have a Compaq M300 which requires 18.5v input, this adaptor does not do 18.5v but does do 18v and 19v, with one of thoose be ok?

Thanks!!

It might work, but you don't mention the current output of the laptop power adaptor, so we don't know if the one on ebay will work.

However, a small inverter and the adaptor that came w/ the laptop would work.

KyferEz

Hi KyferEz,

The output is 18.5v which matches the laptops input. What would happen by sending say 19v through it?

I have an inverter but want to replace it with this option for the usual reasons but dont want to send lots on an original in car adaptor.

mattsmith999,

likely the laptop will operate safely at either 18 or 19 volts. There is a possibility 18 volts would result in instability, but it is unlikely. 19 volts likely will be ok as well, but the laptop will produce slightly more heat. There is a very small possibility of damage, but if it was me, I'd give it a go (althought I'd start at the 18 volts and only if 18 volts didn't work would I try the 19volts).

You still didn't say anything about current requirements of the laptop. 3.5 amps from the one on ebay may not be enough. For example, my laptop needs 3.16 amps so it would just barely work for mine...

KyferEz

2.7amps so I guess that would be ok?

Ok, you might want to move this to the newb section after this question but why do I need a ITPS sequencer? Just to support mp3car.com or do I actully need it?

Thanks!