Using Car instead of AAA battery
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=33598
Printed Date: April 29, 2024 at 4:49 AM
Topic: Using Car instead of AAA battery
Posted By: scelsi14
Subject: Using Car instead of AAA battery
Date Posted: June 09, 2004 at 10:00 PM
Hi, I have been wondering if there is a way to wire a connection for my portable MP3 player from car to use rather than the 1.5 volt AAA battery it currently runs off of. Buying an adapter isn't a possibility because there isn't an alternate power input on the player.
Can I make my own and hook a lead to the ground where the - side of the battery rests and run some sort of voltage regulator to the + side of the battery?
Thanks for any help.
Replies:
Posted By: stevdart
Date Posted: June 10, 2004 at 8:07 AM
You most definitely need to use an adapter to change the voltage and amperage input. I would not try to rig that unit. Save yourself the time and trouble of ruining it, sell it and buy one with an adapter.
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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
Posted By: DYohn
Date Posted: June 10, 2004 at 8:24 AM
I agree. Buy a different player. ------------- Support the12volt.com
Posted By: thapimpfromchi
Date Posted: June 10, 2004 at 10:12 AM
yea, your best bet would be to sell it and get one with a plug, but if you're hard headed, like me, you're probably gonna try until you break it. in this case, i would find a plug (for the cigarette lighter) and make sure it puts out 1.5v. then just splice into the wire, and connect is to the battery terminals. it'll work. i've done stuff like that before, its just gonna look really ghetto. ------------- 1990 Honda Civic HB:
Clarion DXZ545MP H.U.
2- 6.5" Power Acoustik interiors
Diamond Audio 600.1 amp
Diamond Audio 15" M6MKII
Pyramid PB881X 4 CH. Amp
Posted By: greedy111
Date Posted: June 10, 2004 at 3:27 PM
Just solder on something like this to the negative and positive terminals of your player. Then you can get a cigarette lighter adapter which you can then plug into that. of course the cigarette lighter adapter needs to put out the voltage that is required by your player. 
Posted By: scelsi14
Date Posted: June 10, 2004 at 8:56 PM
Thanks a lot everyone.
Yes, pimpfromchi, I am also "hard headed" and am working on making it not look so ghetto. I was just worried if something about how a battery worked was different than a hot wire connected to the positive side and another wire connected to the ground rather than the negative side of the battery would somehow short circuit the player.
Greedy, where would I find the thing you have pictured if I need to go that route?
Posted By: xetmes
Date Posted: June 11, 2004 at 7:51 AM
you can just use something like a linear voltage regulator to give you 1.5V and simple solder it across where the battery would be, I have done it before its not a big deal and usually works just fine. Dont hold me responsible if you break it though 
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