Confusion with new charge controller

[metobi1]

Hello All,

I just bought a new charge controller. EPsolar Itracer IT6415ND 60A, 48V.
I am confused/unsure by many things, the most improtant that I need help with is the battery charging settings which seem to me to be too high and gives me the fear that it might damage my battery bank.
I use 4 batteries connected in series for a 48volts system, each of them is 12V.My batteries are sealed 12V 200AH Okaya lead acid batteries.
The settings on the controller are as follows:
High voltage disconnect 64V
Charging limit 60V
Over Voltage reconnect 60V
Eualization voltage 58.4V
Boost voltage 57.6V
Float voltage 55.2V
Boost return voltage 52.8V
Low voltage reconnect 50.4V
Under voltage recover 48.8V
Under voltage warning 48V
Low voltage disconnect 44.4V
Discharge linmits voltage 42.4V.
My alarm is particularly with the high voltage disconnect and charging limits which are 64 and 60V respectively, I felt that sealed 12V batteries shd not go higher than 12.7V at most I.e 50.8 for the 4 batteries. Please help with my confusion as i don't want my batteries explodind.

[Silver_Is_Money]

The units defaults appear to me (amateur that I am) to be generally in line with those of other charge controllers for 48V. You shouldn't have to worry about the defaults.

[metobi1]

The units defaults appear to me (amateur that I am) to be generally in line with those of other charge controllers for 48V. You shouldn't have to worry about the defaults.

Thanks for your reply, the defaults are different from the former ones I've used and they seem really too high. I just want a more experienced opinion so I don't loose my batteries or worse.

[Mike90250]

You want to be sure you can disable the Equalization cycle, that will destroy sealed batteries. many chargers have an automatic 30 day EQ cycle programmed in

As to the other settings, it depends on the battery manufactures spec sheet, get that, and it will tell you the proper settings for the battery, then you adjust the charger to do that. If the charger is not programmable to the voltages your batteries need, return it and get another.

[metobi1]

You want to be sure you can disable the Equalization cycle, that will destroy sealed batteries. many chargers have an automatic 30 day EQ cycle programmed in

As to the other settings, it depends on the battery manufactures spec sheet, get that, and it will tell you the proper settings for the battery, then you adjust the charger to do that. If the charger is not programmable to the voltages your batteries need, return it and get another.

Thank you so much, I was able to disable the equalization (I think) by setting the time from 120mins to 0 mins. Unfortunatly I don't have any spec sheet for the batteries.
The only info on the battery itself is :
Cycle use 14.1-14.4 @ 27 deg cent
Standby use 13.6-13.8 @ 27 deg cent
Other than that it is a 12V 200AH battery.
Can any setting be gleaned from this pls?

[Sunking]

Cycle use 14.1-14.4 @ 27 deg cent

That is all you need to know. Use 14.4 volts and check hydrometer to be sure it is in the right range. EQ as needed.

200 ah batteries need at least 17 amps of charge current (220 watts with MPPT) and no more than 25 to 30 amps or 325 to 390 watts with MPPT.

[metobi1]

That is all you need to know. Use 14.4 volts and check hydrometer to be sure it is in the right range. EQ as needed.

200 ah batteries need at least 17 amps of charge current (220 watts with MPPT) and no more than 25 to 30 amps or 325 to 390 watts with MPPT.

Thank you so much, for the reply, My problem is that when using my inverter through the power grid to charge my batteries, the max voltage it gets to is about 55V using 15 amps. Now does it mean that is I use 14.4 volts per battery the maximum the battery can get to before trouble is 57.6V? So this should be the peak I set on my charge controller. If this is so, I don't know how what values to configure all the other values like absorption voltage and floating voltage etc.

[Wy_White_Wolf]

Those numbers look like for an FLA battery. Since your batteries are sealed you need to change them to SLA numbers.

WWW

[Raul]

I'm pretty sure the I tracer has 3 preset charging alogarithms . Fla; sel; gel. It comes standard preset for the floded so you need to go thru the panel menu and change the battery type , that's what I did for my agm. I no longer have that controler as I swiched to a victron ultra fast mppt and very happy with the switch.

[metobi1]

Those numbers look like for an FLA battery. Since your batteries are sealed you need to change them to SLA numbers.

WWW

I'm pretty sure the I tracer has 3 preset charging alogarithms . Fla; sel; gel. It comes standard preset for the floded so you need to go thru the panel menu and change the battery type , that's what I did for my agm. I no longer have that controler as I swiched to a victron ultra fast mppt and very happy with the switch.

Thank you so much White wolf and Raul, From the manual the differences in the charge controller preset types are just the Eualization voltage and boost voltage. So my fear still remains I need to know how to use my battery cycle voltage to configure all the values of the controller. I need the values. Is there any chart that I can use to get/calculate them?

[Sunking]

From the manual the differences in the charge controller preset types are just the Eualization voltage and boost voltage. So my fear still remains I need to know how to use my battery cycle voltage to configure all the values of the controller. I need the values. Is there any chart that I can use to get/calculate them?

Not sure what you are asking. If your Controler only gives you Eq and Boost, that is what your are stuck with. Something does not sound right.

FLA batteries are set to 2.2 to 2.4 volts per cell and EQ at 2.5 vpc. AGm just uses 2.3 to 2.4 vpc and no EQ.

[metobi1]

Not sure what you are asking. If your Controler only gives you Eq and Boost, that is what your are stuck with. Something does not sound right.

FLA batteries are set to 2.2 to 2.4 volts per cell and EQ at 2.5 vpc. AGm just uses 2.3 to 2.4 vpc and no EQ.

You spoke about choosing my battery type from my controller different chrging presets. My controller has. Four Gel, Sealed, Flooded and User defined. What I was saying was that all the battery presets my controller has, have the same values except for boosting and eualization voltages. The values which make me unsure for my battery safety remain constant across the presets.
For example I just came home now and my batteries are at 55.1V and still the controller continues to charge them not as floating charge but boosting, while my locally manufactured inverter sees them as full.

This is my fear, the controller has another feature that sees the batteries as 70 percent SOC (I assume this is state of charge). I don't know what to trust exactly.
My inverter which has always seen my batteries as full at about 54V and gives a float charge or this controller which at 55V still possibly sees the battery as not full.
And what setting shd I set my controller underuser definned.