Doug apparently has said float for no more than 48 hours, I think you're fine, Tim. I've done 2 days a few times, no problems. And that actually seems to put an extra charge into the thing. I noticed the first few times I used it that it would very quickly go down to red, now after several 48 hour floats, it will stay green/red for a LOOOONG time. I got 8 hours at the xmas jam.