After charging all night, the battery on the van was below 12v, so that's toast. After work, I took it out and we went and got a new one. Oh, but that was fun... the Vanagon comes with a Group 41 battery. They're not made any more, so I went to a Group 48 last time I got a battery. Those were replaced by the H6 battery, which is about 1/2" too tall for the battery space. We ended up with a Group 40R, which is a lot cheaper than the H6, but a fair bit less powerful. Still, less powerful is better than not there, eh?