starting voltage

Printed From: the12volt.com
Forum Name: Mobile Video, GPS, and Navigation
Forum Discription: Mobile Video Head Units, DVD Players, LCD and TFT Monitors, Navigation, GPS, PS2, PS3, XBox, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=110522
Printed Date: June 24, 2025 at 6:01 AM

Topic: starting voltage

Posted By: geoderby
Subject: starting voltage
Date Posted: January 10, 2009 at 12:05 PM

I have a portable DVD player hooked up in the car. I have a PlayStation 2 (PS2) also, which shares the video screens with the DVD player.

I would like to be able to keep the DVD player/PS2 from cutting out when I start the car. They are both on always live 12v, however, the voltage drops too low when I start the car, therefore, they cut out. The kids get upset when they are in the middle of a video or game, and I have to stop the car and then start it again (getting gas, etc.)

I was thinking maybe a capacitor or a voltage regulator, but i have no idea what kind or capacity.

Thanks

Replies:

Posted By: Mike M2
Date Posted: January 10, 2009 at 8:00 PM

Are they plugged in thru a lighter plug? possibly the plug drops voltage during crank and this is your issue. Leave the car riunning is another option...

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Mike M2
Tech Manager
CS Dealer Services

Posted By: geoderby
Date Posted: January 10, 2009 at 8:23 PM

No, it's tapped straight from the battery. The entire voltage system, by automobile design, drops voltage until the alternator kicks in to supply electricity. That's the way a car battery works, it drops voltage during starting and the alternator takes over once the car is running.

Posted By: airhed692005
Date Posted: February 13, 2009 at 1:01 AM

You can try another battery. Might help it out do the voltage does not drop to far. It might or might not work but I had the same problem when I had mine in my mini van and Thats is what I did. It worked for me and it might work for you. WHO KNOWS

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Ronald Bailey Owner/ Installer of VIBRATION CUSTUM SOUNDS. CUSTOM BOX DESIGNER AND BUILDER
TID-896 7" screen,Amp-BX1206d
4/0power/ground cables
4-12 mofos 12ft3 box tuned 40hz DB:163.1