found my battery dead one afternoon, after a full hour charge we were back up to 11.56v off, 11.07v running w/o the headlight and 10.55v w/.
That battery is toast. Dead. At 12v there is 50% charge, 100% at, what, 12.5v. And the charging system is not even keeping it charged-- you need 13.5 or 14v to keep the battery charged.
Whoa, wait. This is an old '60's something Dream? Aren't they 6v?