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 Post subject: 12V to 120AC Converter to Charge Laptop?
 Post Posted: Sun Aug 01, 2010 2:40 pm 
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Joined: Sun Feb 07, 2010 2:47 pm
Posts: 94
Hi Scott,

I've been on the road camping a lot lately so I haven't had a 120AC power source to charge my laptop. I got one of these little 12V to 120AC power inverters. It puts out a square wave.

I've heard that these "square wave" power inverters introduce transients or voltage spikes into your power supply. Since the power supply is basically a transformer I don't think it will harm it. From the little I know about physics I know spikes will occur at the 12V end of the power supply and thus the spikes will be introduced to the laptop.

Will it hurt the motherboard or other components, if I use the laptop while powering it with the converter?

If it will hurt the motherboard or other components, will it hurt to just charge the battery with the laptop shut down?

I realise you may have never come across a problem like this. You may not be sure, and you wouldn't want me to damage my laptop based on an unsure response.

If you aren't sure, I still hope you'll venture an opinion or put forth any ideas or thoughts you might have.

I'm posting this from a public library, and I won't be able to respond to any of your posts for a day or so. Hope you'll wait for me.


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 Post subject: Re: 12V to 120AC Converter to Charge Laptop?
 Post Posted: Sun Aug 01, 2010 3:26 pm 
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Joined: Sun Feb 04, 2007 11:44 am
Posts: 6074
Those converters should work fine to operate a laptop AC adapter. You might also consider a "combo" AC/DC adapter which will work on either a 12VDC or 120VAC power source. Scott.


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 Post subject: Re: 12V to 120AC Converter to Charge Laptop?
 Post Posted: Sun Aug 01, 2010 3:37 pm 
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Joined: Sun Feb 07, 2010 2:47 pm
Posts: 94
That's great!

A combo adapter, I've never heard of such a thing. Good to know. Thanks. Bob.


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