best alt to run for most output...

[99Camaro]

i notice when my fan switch is on and i have my system going at night the lights dim. I put an Exide dry cell battery in the car but know my altenator is probably on its last leg...im going to put my other battery in the trunk for my stereo and screen i just bought...which alt will recharge both batteries well?? [img]graemlins/fluffy.gif[/img]

[Oryan02]

Just get a higher amperage alternator and wire the batteries in parallel.

[Dominic]

The only reason Im going to allow someone to say "wire the batteries in parallel" is because the car batteries used are in a form of series'd cells in the first place.

If each battery is looked at as one unit, and say a short goes through all 6 cells when wired in parallel, the other LEAD-ACID (read: not good) will EXPLODE.

I hope this is enough emphasis... Please don't run multiple batteries unless you KNOW what you're doing and are willing to take this risk.

This is why most people run caps for fast power availability during times of loud peaks... an alternator won't react faster, it'll just charge better.

[ January 30, 2003: Message edited by: Dominic ]</p>

[grndlvl]

try powermaster, and please use a battery isolater if you are gonna use two batteries, that way your main battery is not used to run your system

[Yammadude]

How do you know your alternator is on it's last leg?