Will PD4655 equalize one four year old12V at 14.4

While the PD numbers are about as good as you can get, they can't work miracles. If the cell electrolyte density is really all over the map, then the cells are probably sulfating. If you bump the PD into equalize/destratify mode, you will help things. My bet would be to do one of two things.

Cheap way, look up battery desulfators and get one. They all do the same thing. They feed very short pulses of high voltage back into the battery. This can knock the insoluble sulfate back to being sulfite. It MAY save the battery. My experience is about 50/50.

Better way, replace the bank just before you will next need it again.

Matt

The Charge wizard is kind of a complex device.. Let it sit for a few days plugged in with not much running.

What happens is this: First it charges the battery, Bulk, Absorption, Finally going into float mode.. About 20 hours later it will switch to Equalize for like 15-20 minutes, then it goes back to float for about 20 hours, then it switches back.

You can (if you have the dongle) force it.. to different modes as well but I do not know how long it stays in Eqaualize.

But I'd give it a week and re-check with the float.

Restoration of battery capacity is usually not accomplished, but in the attempt, the battery owner learns how to keep the next set of batteries healthier.

Recharging lead acid batteries to full ASAP as often as possible is the Key.

The key to getting full asap is the proper amount of time at absorption voltage, and the proper time is a moving benchmark depending on depth of discharge, overall health of the battery, the lead/electrolyte ratio in the battery, the number of cycles since the last true full charge, battery temperature, and perhaps another dozen other variables.

How to know when 100% is reached? Hydrometer. and/Or an Ammeter

Do not listen to those who declare their batteries full because a charging source has dropped to float voltage. The battery's clock is ticking faster for these folks who put their faith in blinking green lights, especially if they discharge to 50%.

PD's manual is criminal, calling a 15 minute boost to 14.4v every 18 hours from 13.2 storage mode an 'Equalization' has no relation to a 15.5v+ true forced overcharge equalization that will max out the Specific gravity on all cells to their maximum potential.

Your 4 year old 12v battery fed by the WfCo likely cannot have much usable capacity restored even with a proper equalization. The PD will keep your next battery happier, but it can never do a true equalization at 15.5v+.

x2

At four years old, you are lucky that you haven't had to replace it prior to now. With the low readings you have you will be much better off to just replace it, much better than sitting in the dark while camping because the Batter died.

Quick and dirty answer, no.

It will take 15.7 to 16.0V and time to get the job done, at a constant charge rate of 5% of the 20 hour battery ampere hours rating. If your battery is rated 210 amps, it will take 10.5 amps at 16.0v, probably from an old manual auto battery charger.

You need the voltage to get up to 16.0V at the battery post for equalization to happen. You need to monitor the voltage rise, then discontinue once the voltage starts dropping again below 16.0V.

Do a search here how to perform an equalization.

14.4 not enough. JMO