Re: deep cycle battery
Feel free to correct me anyone, but pby, if your lights dim while your stereo peaks out its power draw, your battery is not to blame.
Stereo design is not my thing at all, but I believe that they make capacitors that are designed to store the energy that your subs need at peak so that your battery/charging system doesn't take the hit.
And, if you're concerned about the cranking life of your battery, get your engine tuned up so that you don't have to crank it over for 40 seconds. My truck has the much maligned BBD, and I never need to crank it for more than 5 seconds to get it to start, even in the dead of winter. your profile doesn't show what your jeep is, so I can't go any further in that vein, but if you are running a 258 or 360, do the tr upgrade!! Starts are much improved, and I am positive that the upgrade will lengthen battery life.
When the engine is running, your alternator is responsible for the draw of your system. if your accessories are overworking your alternator, putting in a high test battery will only help your alternator suck money out of your wallet. The alternator needs to be upgraded first. Brendan
Proud owner of the world's best running Carter BBD