Hi all.

My near new 100 AH flooded deep cycle battery (not AGM) has seen
little use, is on a charger when not used, but was recently discharged
it to 11.15 Volts. Would this discharge create any appreciable amount
of soft sulphate on the plates? The charger does not show an error
when connected to the battery. (see below)

The charger has a "16V Boost" de-sulphation mode. Warnings in the
manual (quoted in part below) make me wonder if using the "Boost" mode
to melt any soft sulphate, carries a lot of inherent risk. (i.e.
electrolyte boil over or worse)

From reading elsewhere, AFAIK, this mode likely uses a pulsed voltage
though the manual calls it a "highly specialized" charging mode.

Have others used this method? Is this a bad idea?

Thanks

Neil.

From the charger owners manual:

"CAUTION. USE THIS MODE WITH CARE. THIS MODE USES A HIGH VOLTAGE AND
MAY CAUSE SOME WATER LOSS IN WET (FLOODED) CELL BATTERIES."

"The 16V BOOST mode is used to recover battery capacity from a
stratified (sulfated) battery by applying a specialized high 16.5V
(17V Max) voltage to soften and melt down sulfate from the battery
plates so that the material becomes usable again."

" 2.) Attach the battery clamps or eyelet terminal connectors to the
battery,.......

3.) Connect the battery charger�s AC power plug into a suitable
electrical outlet. DO NOT FACE THE BATTERY WHEN MAKING THIS
CONNECTION."

"TROUBLESHOOTING
ORANGE ERROR LED ILLUMINATES.......

� SULFATED, DAMAGED, OR POOR BATTERY This ERROR condition can be the
result of a sulfated, damaged, or poor battery. To properly diagnose a
sulfated, damaged, or poor battery, take the battery to a local
battery store for an evaluation. "

-- 
Neil n

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