Sienna Radiator

The battery in the Sienna had been getting weak (cranking over slowly when starting), which was odd because I just replaced the battery less than a year ago with a Duralast from AutoZone. So I took the van to AutoZone to have them test the battery and alternator. Long story short, I got a brand new battery and the alternator tested good. That's good. But as we were getting back in the car Evan says, "Dad, is that coffee under the car?" I expected to find water from the AC but indeed there was some red liquid. That's not good. It turns out a radiator hose got knocked loose while replacing the battery.