solar and MT50 readings

[Dennis 1]

Hi All,
The question I have is the addition of volts and amps do not look right with the MT50 and I have 3 -100ah lithium batteries maybe something is not set right. I went out and checked my panels with a multi meter 2 - 12v 100W Rich panels and 2 - 12V 100W HQST panels. About 11:30am and it was 72`.
My MT50 read under the panel section read 30.1V and 9.4A, and under the Battery it read 13.5V and 20.9A. Could I just be concerned for nothing? Any help would be appreciated.

Rich Panels read HQST Panels read
ISC - 5.86A ISC - 5.83A
VOC - 22.6V VOC - 21.3V

Panel 1 tested Panel 1 tested
ISC - 4.7A ISC - 5.4A
VOC - 21.8V VOC - 21.4V

Panel 2 tested Panel 2 tested
ISC - 4.7A ISC - 5.1A
VOC - 21.6V VOC - 21.3V

 

[fratermus]

the addition of volts and amps do not look right with the MT50

What is the exact nature of your concern? Both 30.1V x 9.4A and 13.5V x 20.9A are ~280w. Bucking down panel voltage to charging voltage (and therefore increasing current) is one of the defining features of MPPT. As far as I can tell the controller is in bulk charging stage and Working As Designed<tm>.

If you are wondering about the observed 30.1v panel voltage it might be useful to tell us how they panels are wired. I am assuming 2P2S. If so, that's the MPPT running the array at Vmp under present conditions.

 

[Dennis 1]

Sorry, Yes they are wired 2P2S I should have said that. Thanks for the info.