Grizz:
I see how the amps could add up, and stand corrected! ... LED's for the win!
I know there is a HUGE wall and people are either on one side or the other of it but this is the side I am on (esp. after working on aviation batteries for 12 years) >>
I would disagree that smelling the batteries would mean there is a need to lower the charging voltages. Batteries will bubble a little when almost charged, these bubbles will cause vapors, which cause the smell.
Granted, a rolling boil is bad. But a fizz like in a cola along with a faint rotten egg smell is perfectly normal, and means the batteries are reaching a fully charged state. Failure for the bubbleing is indication of a battery not reaching its full charge.
The only 'true' answer is to use a hydro meter after a charge cycle (after the battery rests).
I have done this, and with the batteries I have worked with over the years, the ones that do not bubble never charge fully.