I'll get a pic soon, but I got a battery jumper that blew the charging board in it....well I charged it with a normal battery charger and its fine. So I popped off the back and it has a nice "lead acid sealed battery" in it. Obviously this is a high amperage/capacity battery or it would not be able to jump a fly let alone a car. Its maybe 2-3" thick and 6" tall by 8" wide roughly. So, with my monstrous 700.5 amp (lol) I was thinking this would be the perfect cap for it to mount in the trunk. I still have to inspect it for vents not sure if it has any or not....hoping not. Seems like if it did it would trash all the wiring inside the jumper, also has an air compressor in it. I did consider just mounting a jumper in there instead of just the battery, then I could actually use it if I ever needed to.

This would add minimal weight and take up little room in the car over a normal battery.

but why?

I'd love to drop a second battery in the trunk, but in this little car I don't have the room or want the weight. I can already feel the sub weight when driving. Also figure this amp just isn't that big so I should be able to get away with something like this? Everyone thinks the issues I have are from power so this should make a difference right?

Then if I ever get around to putting the 8s in the doors, that will take more power yet. There is no way the high side of this amp will run 8s the way it is now even car running. I can try it, but fear I will need to bridge it and run another amp for the 3". It hardly runs the same door speakers cleanly any louder than a 2x30wrms alpine did at 2 ohms, its not right. It goes louder but sometimes it distorts and other times no. Even turning up the crossover does not change it much, turning it down would kill the alpine. It acts like input overloading but changes with the music. It does not break up it gets fuzzy, unless that is just what cheap amps do I've never had this issue. When my other amps break up they either do or don't and you know for sure.