VMAX Charge Tank 1250 Watt Ultimate Car Audio Charge Tank 12 Volt 50Ah Battery

This may be ther world's best battery. Once I figure out a way to mount this in my VW Eurovan's Aux Battery Compartment, I can try it out. I haven't yet, because there is no way to secure this battery in my vehicle.Typically, a battery will have a molded-in ridge about half an inch from the bottom, to engage the battery tray's hold-down. Nope. Or, there will be a slot on the top for a top-mounted clamp. That's not here either. And, to top it off, it is not returnable (Amazon policy) as it is Hazardous Material.UPDATE August 2014. It's in the Eurovan, and fits and works great. I rigged a combination of bottom-mount Velcro strips, and Straps across the top, and now it is solidly in the right spot.

I received the battery upside down and I sure was glad to see it could handle that. I use it on my ham radios and its a great battery. Worth getting if you want an indoor battery.