12 volt electronics with car stereo?

Question

I am pretty familiar with car audio but cant figure this one out and hoping you can. I currently have my cooler radio hooked up to my car stereo with 4 6x9s powered by a 12 volt sealed lawn mower battery. My question is I want to put a cool little system in my softball backpack to hear jams nice and loud hooked up to a car stereo and 1 6x9. The 12 volt lawn mower battery weighs about 18 pounds and trying to see if I can power a car stereo that wont weigh down my backpack so much maybe 6 or 7 pounds at max. I know that I wont hear music as long but oh well. I have hooked my d cells battery to it but it just dies quick and gets expensive. . I have seen some backpack radio’s but they have tiny little speakers. Or if you can offer any suggestions

Answer 1

The reason they have little speakers is because they take a lot of energy to power them. You are using equipment that is designed to run off a power plant (car engine and battery) and you want it to be mobile in a backpack? Think reasonablly here. Why not use an ipod and one of the ipod speaker systems? Likely a lot easier, lighter and more reasonable for your needs. Otherwise, just get a small boom box... Again, lighter, easier and more reasonable...

-Good Luck

Answer 2

How 'bout laptop batteries? small 6 cells are usually rated about 4400mAh (4.4Ahr), 48Whr. Ive seen 84Whr 8 cells and 7200mAh 12 cell from 11.1V up to 15V. Look for a 14V battery, it about the same voltage the car battery is at when the car is running. And i think (i'm not sure, so check the specs), but car stereos can take like max 17V source.

They are expensive, so just use the lawn mower battery, extra weight help burn a few calories, think of it as using a weighted vest.

Answer 3

do no longer use a skill inverter on your stereo - it fairly is going to possibly make multiple noise on your stereo. instead, get an low fee united statesthat has a 12 Volt lower back-up battery, and use your 12 Volt source because of the fact the battery charger, and use the real sine wave united states120 V output to skill you stereo.

Answer 4

A less expensive solution would probably be a rechargeable "gel cell" battery similar to this:



http://ww9.aitsafe.com/cf/add.cfm?userid=B668585&product=Power-Sonic+PS-12180NB+Battery&price=40.00&units=1



This one provides 18AH which should be sufficient to power a normal vehicle receiver for 3-5 hours depending on how many speakers are attached and how loud it's played. It's rated for deep discharge and best of all, only weighs a little over 13Oz. A larger 35AH would last even longer before needing to be recharged, and still weighs only about 1-1/2Lbs.