Any tips on where to start? I just bought a new battery. When I turn the key to the on position, before starting the truck, the voltmeter drops to just above the orange level and the "charge" light stays on. It feels a bit sluggish to turn over too. Once started the charge goes back to full and there's no problem. It doesn't seem to matter whether it sits for 15 minutes or 3 days. Either way it's the same thing. I would think the battery might be bad, but once it's running the charge is full, unlike when the old battery was dying. I guess I'll start by making sure the battery is good. But any ideas in case it is not the battery?