U.S Batterys issue...smell?

[GLEEMO]

New batteries or severely depleted batteries can take 8-12 hours to charge.
The amp reading window will start going down , just keep an eye on the readings if U'r worried .

[Gale Hawkins]

Originally Posted by Gale Hawkins

If at the end of charging a 12v battery requires 15.5v to completely charge the battery then 62v output would be dead on at end stage of the recharging cycle for a 36v bank it seems to me. Tonight I have four 12v's conditioning in parallel and I am waiting on the 40 amp charger to hit 15.5 volts or close to it so I can move the charging harness to another set we use in a 48v set up.

Batteries do not technically "boil" and the correct term is "gassing". If this gassing does not occur during a recharge cycle and very agressive right at the end then you will shorten their life by years. This is the required "equalizing" phase of the recharging process. If you do not smell them in a closed building like you did then one has a nose or charger problem. :)

Thanks. It should have read 48v and NOT 36v. Rule of thumb charging should not be much over 2.5v per cell for flooded lead acid batteries and then only near the end of the recharging cycle.