Battery Equalization

I have a Progressive Dynamics PD9270 with Charge Wizzard. Suposed to have automatic equalization and it does just fine. I have (2) T105's that are now 7 years old and still have good specific gravity and voltage readings

I've never equalized, didn't feel comfortable with the process while they are installed and connected. I had a set of 4 t105s lasted 8 years

Johnny G1 wrote:
I can see those batteries not lasting very long with high charging like that,Let us know in 6 months as they likely will be totally ruined, 13.8 is plenty high enough for a charge and equalize @14.8 -15.2. Just my thought's as my battery pack is 11 yrs old.

Don't need 6 months. I have 4 group 27's in series for 48 volts on an electric pontoon boat. They finish off at 15.5 per battery all the time with a Lester industrial charger. They are used seasonally and this is the 6 th year. Just checked the specific gravity today. 1.280.

Also worked on electric industrial equipment for 35 years with personnel carriers that were abused, run too low, run low on water and they were charged the same way. Easy to get years out of the batteries. 4800 lb 48 volt lead acid Crown batteries were equalized every week to 62 to 63 volts. That's just like taking a 12 v to 15.2 or 15.5

If you plug in and dont boondock you may get by at 14.4 and take days of charging. You cant stay off grid for 6 months when charging at 14.4. As the volts go up the amps go down and the battery will be brought to a slight gassing insuring agitation of the electrolyte and no stratification. When boondocking we dont have days to charge. So extremely long generator run times are not possible.

If running a bank of 4 6's and the batteries only last 2 years and it costs ($170.00 for 2- 6's) that equals $160.00 a year. If using a converter and 14.8 and usually having to babysit the converter to keep bumping it to 14.4 it would use more fuel each year and a worn out generator that cost $2,300 than it costs to replace the batteries. There are many people in here who top charge with real battery chargers at high voltages. Depending on how you measure something, what may seem wrong may be cheaper than right. Everyone's applications are different. Some do a high voltage charge early in the day when the battery is pulling the most amps and then switch over to top off with solar at high voltage low amperage. A lot of people also go to solar as the controllers are sometimes user adjustable for high voltages.

I've done it one time and ruined the batteries. The on board system is supposed to shut off or go to trickle charge when complete but I dunno. Someone may have run it twice. I would be close by during the process.

I can see those batteries not lasting very long with high charging like that,Let us know in 6 months as they likely will be totally ruined, 13.8 is plenty high enough for a charge and equalize @14.8 -15.2. Just my thought's as my battery pack is 11 yrs old.

My Tri-Metric is set for AUTO.

I haven't yet but this is a new set of batteries and charger. I charge at 15.2 to 15.5 so the sg is always up and the readings are pretty consistent. I'm also buying a Mega Watt power supply and will be able to equalize at 16 v. I'll watch my sg readings to see when it's needed.
I believe many rv converters dont have the ability to truly equalize
but I'm not familiar all the models.