Re: any point in even attempting....
If it's supposed to be a 12v battery, I would say definately NOT. If I remember right, a 12v batter will normally show a voltage slightly higher than 12v and is considered dead at around 10.5-11v. Anything less will be damaging and wouldn't be worth trying to revive. Trying to charge could possibly cause it to explode.
Daniel - Rhapsody Blog
“A sailor’s joys are as simple as a child’s.” — Bernard Moitessier
"I don't need therapy, I just need my boat"