Hello, hope someone can shed some light on my problem.
I have a simple solar powered gate opener setup at home. I am having trouble with the battery seemingly discharging over night.
I have 2 x 20w panels wired in series making 24v. These are then wired to a charge controller, which is then wired to 2x 12v 7ah batteries also in series.
Panels : BlueFusion Mono Solar Panels 10W - 100W. For grid-tie commercial system builders and off-grid Caravan, Yacht applications. - https://midmarine.com/product/bluefusion-mono-solar-panel/
Charge Controller : LCD Solar Panel Battery Regulator Charge Controller Dual USB 10A/20A/30A 12V/24V | eBay - https://www.ebay.co.uk/itm/LCD-Solar-Panel-Battery-Regulator-Charge-Controller-Dual-USB-10A-20A-30A-12V-24V/123133341839?ssPageName=STRK%3AMEBIDX%3AIT&var=423545070868&_trksid=p2057872.m2749.l2649
When sun hits the panels the charge controller shows it is charging and the volts go up to 24-26v and the battery level shows full/mostly full. In the morning when I check, the charge controller shows 19-20 something volts and the battery level is empty.
I cant figure out if the charge controller doesn't have a blocking diode or it isn't working, or if the charge controller battery level /volts indicator are just wrong. Or if I am missing something altogether!
At the moment I don't have anything wired to the load of the charge controller as I am just trying to figure out the charge situation.
I thought about putting a schottky/blocking diode on the + side of the wire going to the controller to test if the controller actually does have a function blocking diode or not. But not sure if that is the correct thing to do.
Any help would be greatly appreciated.
I have a simple solar powered gate opener setup at home. I am having trouble with the battery seemingly discharging over night.
I have 2 x 20w panels wired in series making 24v. These are then wired to a charge controller, which is then wired to 2x 12v 7ah batteries also in series.
Panels : BlueFusion Mono Solar Panels 10W - 100W. For grid-tie commercial system builders and off-grid Caravan, Yacht applications. - https://midmarine.com/product/bluefusion-mono-solar-panel/
Charge Controller : LCD Solar Panel Battery Regulator Charge Controller Dual USB 10A/20A/30A 12V/24V | eBay - https://www.ebay.co.uk/itm/LCD-Solar-Panel-Battery-Regulator-Charge-Controller-Dual-USB-10A-20A-30A-12V-24V/123133341839?ssPageName=STRK%3AMEBIDX%3AIT&var=423545070868&_trksid=p2057872.m2749.l2649
When sun hits the panels the charge controller shows it is charging and the volts go up to 24-26v and the battery level shows full/mostly full. In the morning when I check, the charge controller shows 19-20 something volts and the battery level is empty.
I cant figure out if the charge controller doesn't have a blocking diode or it isn't working, or if the charge controller battery level /volts indicator are just wrong. Or if I am missing something altogether!
At the moment I don't have anything wired to the load of the charge controller as I am just trying to figure out the charge situation.
I thought about putting a schottky/blocking diode on the + side of the wire going to the controller to test if the controller actually does have a function blocking diode or not. But not sure if that is the correct thing to do.
Any help would be greatly appreciated.