Car stereo help please :)

[kansasskydiver 0]

Ok I've got a MAJOR project I'm working on and need some technical advice. Need to know what kind of aditional power this setup will need:

1x200watt amp @ 4oh
1x40wattx4ch amp
1X In dash DVD
4x7" lcd monitors
1x 20" dell monitor (will probably use an cd/ac interter)
1x?????watt inverter

I'd like to be able to run this all under the 3 conditions:

a)while the engine is running
b)without the engine running
c)plugged in at an rv hookup (what ac/dc converter should I use and how big)

How many additional batteries should I run, bigger altenator? Could I use an RV ac/dc converter or could I run a battery charger when at an rv slot?

Thanks in advance

<--- See look, pink dolphins DO exist!

[cvfd1399 0]

If my calc. is right you will be drawing in the following order this number of amps. from your battery
Amplifiers=27 amps @ 13.3 volts
DVD=10 amps @ 13.3 volts
monitor 5-6 amps X however many you have
Inverter can be from 20-50 amps

So I would say amp draw from the battery and alternator is in the neighborhood of 63-80 AMPS over estimated IMO. If you have a good battery, you will proally not even notice this when the car is running unless you have every accessory on like A/C lights, windsheild wipers going. Even then all you will likley notice is when bass hits a slight dimming of your instrument guage and possibly lights. The best way to estimate what the MAX amp draw is of all your componets is to add all the FUSE ratings up and that will give you the worst case scenerio. You can take that number and then subtract 25% and get what would be a real world max draw. Sorry if this sounds confusing. From the size of the amps that you are saying if you have a good battery with the car running you will be fine. With the car off you might get a hour playing time before you need to crank up and recharge. The thing is when the voltage gets low your stuff will heat up remember that. Later