Leaving for 4 months, what should I do with my solar power system?

[leblancm]

Since recently,I live Off Grid in Dominica. My only source of power are my solar panels (except my 2 kw backup generator). I have sometimes to leave for 4 months and I want to be sure to do the wright thing with my system at this moment. I have 4 pairs of Trojan AGM batteries 12V 220 AH, an array of 4 285W solar panels in parallel (Vmp 32V, Amp 8.9A) and an hybrid charger/inverter 3 kw 24V PWM 30-32V. Everything works well. I follow strictly the recommendations in the Trojan user manual, having same Bulk and Absorption Voltage without Floating. Normally, I reach my target voltage (28.8V Tp° adjusted) around noon. Now, when I will leave, I consider 3 options.

1) Disconnecting my solar panels and my batteries from the charger and turn off the inverter.
2) Put all breaker off in the house (no consuming) and let running the system with the inverter settled at Continuous Floating when there is sun (27V Tp° adjusted).
3) Put all breaker off in the house, do nothing at all and let it unchanged until my homecoming.

Could you tell me what is the better option and give me arguments for each option?

Big thank's to eveybody who could help me.

[Freeesun]

i would do #2 i wouldnt want to leave my system off for 4 months, might not be good for the batterys. discconect all power drainage and just let the batterys stay fully charged for the time being.

[Mike90250]

#4 ) Disconnect 3 PV panels, leaving 1 to charge the batteries daily. Disconnect the inverter and all loads.

This leave a very light charge source to keep the batteries up, and reduces the chance of a random load draining the batteries.