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4 inverters and counting

by yeahyeahright / March 10, 2008 2:44 PM PDT

I use my Acer Aspire 5720 15.4' for a business that I run out of my car.. I decided to purcahse an inverter so that I can use the notebook longer. I've purchased 4 inverters and none seem to work properly... I went from 90w- 400w looking for a solution.. The inverters seem to be working fine but after 45 minutes they've all made a beeping sound then shutdown... They also beep then shut down when the car is set to only run the radio and the engine is off... I would truly appreciate any help... It seems like ive tried everything to no avail.. PLEASE HELP!!!!

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Doesn't that mean. . .
by Coryphaeus / March 10, 2008 9:18 PM PDT

the car battery is running down? Does it beep and shut down with the engine running?

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by yeahyeahright / March 10, 2008 10:14 PM PDT
In reply to: Doesn't that mean. . .

I purchased a 400W inverter last night.. I was able to drive without it beeping for a good 90 mins.. Then it would beep sparadicly with the engine running, but it never shutdown.. Instead of it shutting down the fan came on..

All four of the inveters 90w-400w all beep and shut down when the engine is off, butrunning accessories.....

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Isn't that laptop a little power hungry?
by R. Proffitt Forum moderator / March 10, 2008 10:29 PM PDT
In reply to: sometimes

I looked at it but find a 8400 video chipset so it could be quite the little piggy for power use. But that's 1/2 the issue. You may have found a weak link from the battery to your inverter. Did you try a direct connect to the car battery? (fused of course with heavy wiring.)


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i havent
by yeahyeahright / March 10, 2008 10:35 PM PDT

I'll try the direct connect. The only problem with that is I wouldnt be able drive while the inverter was directly connected to the battery.... Unless a buy a battery to exclusively be used for the notebook INSIDE the car... I just got off the phone with ACER... They were useless... They gave me a number to a parts supplier...

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Then some auto shop
by R. Proffitt Forum moderator / March 10, 2008 10:41 PM PDT
In reply to: i havent

To have them drop bigger wires in from the battery to the socket for the inverter to reduce the voltage loss in that line.

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by yeahyeahright / March 10, 2008 10:49 PM PDT
In reply to: Then some auto shop

How do you feel about simply buying a battery for inside of the car to run the notebook... And also.... The part supplier suggest that I use a car adaptor for the notebook... I afraid to order the adapter cause if the inverters arent working why would a car adapter work

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Car adapters are more likely to work.
by R. Proffitt Forum moderator / March 10, 2008 11:24 PM PDT
In reply to: ok

Since there is less power being lost in the conversion process. But if your auto wiring is less than hefty you may be trying to fix the wrong part.

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that fixed it
by yeahyeahright / March 11, 2008 11:53 PM PDT

I had wires run directly from the battery to the inverter.. EVERYTHING IS WORKING PERFECTLY!!!! THANKS

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That's good to read.
by R. Proffitt Forum moderator / March 12, 2008 12:35 AM PDT
In reply to: that fixed it

Thanks for sharing the experience.

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Try Turning the Heat Down (I'm Not Kidding)
by alleeum / January 8, 2010 11:48 AM PST

My Targus Power Inverter (PAPWR005U) worked just fine in my car until tonight, when it started beeping (two short beeps, over and over and over...). There isn't *any* documentation on the Targus Web site, so proceed at your own risk, but I will tell you that when I turned the heat down (the car is running), the beeping stopped. It took a little fine-tuning of the variables (trying various levels of heat in combination with the seat warmer on/off, the overhead light on/off, etc.) but I found an arrangement that is making both me *and* the inverter happy. As I said, proceed at your own risk -- I have no idea if the beeps were trying to warn me of something more ominous -- but if it really was simply announcing there wasn't enough power to draw from, adjusting the heat/light inside the running car seemed to solve the problem.

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