Fullriver DC250-6 charging rate

[trash]

I am in the process of putting together a small system using 2 x Fullriver DC250-6 batteries (6v 250Ahr). For the life of me I can't seem to find an info on the charging rate. I have looked at the stickies in other sections that say charging should be between C/10 and C/12. Just trying to work out what size and how many panels I need. I went to a shop and was advised that 2 x 32v 265w panels would be needed. I am in Australia if that makes any difference. Thanks in advance.

[NEOH]

trash ,

AGM's can take a fast charge rate.
But you do not want to out-gas an AGM.
Lost electrolyte, is lost forever. ( Absorb = 14.7 V )

C/12 = 21 Amps
C/10 = 25 Amps
C/8 = 31 Amps
C/6 = 42 Amps
C/4 = 63 Amps (maximum rate)

Assuming 100 % efficency ( never ) ...
530 Watts = 2 PV Panels x 265 watts
44 Amps = 530 Watts / 12 Volts

Temperature compensated

[trash]

So I was thinking of the 2 panels in series.

Panel details are:
265w poly 60 cell
Vmp - 31v
Imp - 8.56a
Voc - 37.8v
ISC - 9.02a.

Will they be enough? Numbers don't appear to work out at the above mention charging rates.

[NEOH]

Yes, two PV Panels in series.

What are your numbers (math) for the Charge Amps ?

EDIT : PV Panels in series or parallel will produce 530 Watts = 2 x 265 Watts

[NEOH]

trash ,
What is the Make & Model of your Charge Controller?
That can limit the Voltage and the Amps.

[trash]

trash ,
What is the Make & Model of your Charge Controller?
That can limit the Voltage and the Amps.

I have an EPEVER Tracer 4210A. It can do 100v 40a

[Sunking]

I have an EPEVER Tracer 4210A. It can do 100v 40a

I know these batteries. That will not even get those batteries attention. They can be charged as slow as C/5 and as high as C/2. Last thing you want to do is limit any current. If you have to much current, get rid of panels silly. Your two batteries can be charged at 1500 watts before they even get tickled.

So do you have more than 1500 watts and a 125 amp controller? I did not think so. You got nothing to worry about except over discharging them. Set all voltages including Float to 14.7 and forget about it. If you have temperature compensation use it at 4mv/C/cell so as temp goes down, voltage goes up. Be sure to put the sensor between the two batteries on one of the batteries case. Air temp means nothing.

[trash]

Thank you NEOH and Sunking for the info you asked and the answers you gave. It has helped me immensely.