We were somewhere around Barstow, on the edge of the desert, when the drugs began to take hold. I remember "JosephKK" saying something like:
Umm.. lemme see. How many years have I been involved with automotive batteries? Many.
How many batteries have I wrecked by overcharging them? None.
How many batteries have I seen bubbling? Quite a few.
Note that I don't particlarly recommend leaving the battery on a charger until it's bubbling vigorously, like a deep-fat frier, but if it happens it happens and so far it's not damaged any flooded lead-acid cells I've had. Anyway, that's why I have them on a timer.