AC Battery Charger powering amp?

Printed From: the12volt.com
Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=43379
Printed Date: May 13, 2024 at 2:16 AM

Topic: AC Battery Charger powering amp?

Posted By: h2opolo_1255
Subject: AC Battery Charger powering amp?
Date Posted: November 20, 2004 at 5:05 AM

I'm looking for a way to power a 12v DC car audio amp with your typical household AC current. I was thinking of buying a cheap automotive battery charger and using it to power my amp. is there any reason not to do this? will it even work? if it won't, is there another way to power 12 volt dc electronics with household AC that is affordable to your average college student?

Replies:

Posted By: Mad Scientists
Date Posted: November 20, 2004 at 8:59 AM

What I've done in the past was a 12v car battery and a battery charger.. put the battery in a plastic battery box and watch for acid spills.. or use a sealed battery.

Jim

Posted By: h2opolo_1255
Date Posted: November 20, 2004 at 3:24 PM

Cool... only problem with that is i gotta buy more stuff.... but yeah that sounds like it'll work. thanks for the reply.

-andrew

Posted By: overworked
Date Posted: November 20, 2004 at 6:41 PM

ummmmm..... you can't use a 12 volt charger alone.

A battery charger will charge your battery using a series pulses it is not a constnt 12v supply although it seems like it, the other problem is a battery charger can handle about 4 amps...10 if yougot a good one, only litle power amps draw lees then 10 amps, meaning you will have severe lack of power, and will most likely cause damage to your charger

Using a charger and a battery will work but bear in mind that you are still taking more from the battery then what the charger can put back into battery, so henceforth you will still end up with a flat battery.

-------------