It's a small compact battery which makes it alot easier to mount it up right next to my Amp! And its meant for 1200 to 1500 watts so it's perfect! I haven't hooked it up yet because I was waiting for my charger for it to come in, but can't wait to finally install it so my lights can quit dimming when that hard bass hits!! I will definitely be using big Jeff again.. they have great customer service and it didn't take long to get my packages either!!