HARG Hunter
Thirsty for Off-Grid Knowledge
I may have already solved the issue, but just looking for ongoing input on my system that I'm building.
Initial Set-up:
(1) Renogy 100w Mono Panel
Renogy Rover Elite 20a MPPT C.C.
1000w Inverter
(2) Marine Deep Cycle batteries (Estimated they are 50ah batteries each)
I was having no problem getting those charged up to 13.5-14+ Volts
Several factors: In summer the sun was rockin', and there were very few shady days leading up to the times we were at the cabin. The total draw we have is typically under 100 watts at a time for very short spurts. We are only at this cabin every other weekend, so it has plenty of time to charge things up between visits.
THEN, I added (3) Mighty Max 30ah batteries. This brings my battery bank up to approx. 200 ah.
Since then, the system struggles to stay at 12.5V or more. Typically it sits between 12.0V - 12.3V
I assume several things. First, we are now in the fall season in Wisconsin. The sun is lower (Which I did adjust the panel angle to maximize exposure).
We've had more frequent clouds, plus I feel the single 100w panel just can't keep the bank charged.
I just bought another Renogy 100w panel.
I'm hoping that when I get this added, the battery bank will get back up to where we need it.
This will be the system when I get that panel hooked up:
(2) Renogy 100w Panels
Renogy Rover Elite 20a MPPT C.C.
1000w Inverter
(2) Marine Deep Cycle batteries (Estimated they are 50ah batteries each)
(3) Mighty Max AGM 30ah Batteries
Just hoping you all can look at my system and pick it apart for me in case there is a glaring imbalance or something.
I truly think that when I doubled the size of the battery bank that I wasn't getting enough charge from the single panel.
A combo of that plus the diminishing sunlight conditions aren't allowing the battery bank to get the charge it needs.
FIRE AWAY!!!
Initial Set-up:
(1) Renogy 100w Mono Panel
Renogy Rover Elite 20a MPPT C.C.
1000w Inverter
(2) Marine Deep Cycle batteries (Estimated they are 50ah batteries each)
I was having no problem getting those charged up to 13.5-14+ Volts
Several factors: In summer the sun was rockin', and there were very few shady days leading up to the times we were at the cabin. The total draw we have is typically under 100 watts at a time for very short spurts. We are only at this cabin every other weekend, so it has plenty of time to charge things up between visits.
THEN, I added (3) Mighty Max 30ah batteries. This brings my battery bank up to approx. 200 ah.
Since then, the system struggles to stay at 12.5V or more. Typically it sits between 12.0V - 12.3V
I assume several things. First, we are now in the fall season in Wisconsin. The sun is lower (Which I did adjust the panel angle to maximize exposure).
We've had more frequent clouds, plus I feel the single 100w panel just can't keep the bank charged.
I just bought another Renogy 100w panel.
I'm hoping that when I get this added, the battery bank will get back up to where we need it.
This will be the system when I get that panel hooked up:
(2) Renogy 100w Panels
Renogy Rover Elite 20a MPPT C.C.
1000w Inverter
(2) Marine Deep Cycle batteries (Estimated they are 50ah batteries each)
(3) Mighty Max AGM 30ah Batteries
Just hoping you all can look at my system and pick it apart for me in case there is a glaring imbalance or something.
I truly think that when I doubled the size of the battery bank that I wasn't getting enough charge from the single panel.
A combo of that plus the diminishing sunlight conditions aren't allowing the battery bank to get the charge it needs.
FIRE AWAY!!!