float voltage
I am dealing with AGm batteries that have a suggested float of between 13.5 and 13.8 What may happen if they are only 'fed' at 13.2 for a float voltage via solar panels during storage? The solar sy...
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Get a cheap controller that has adjustable voltage such as the Solar30 (about $35) and only hook it to one panel or how many it can handle. Since it is just for storage amps, you don't need the full array and big regular-use controller.
Measure the voltage at the battery posts to confirm the controller's setting in case of an index error on the controller's setting. Bit of trial and error time to get it right (1/2 hour?) Most of those have their temp comp on the controller itself, so mount it with the batteries for same ambient.
If you only have 24v panels, the Solar30 can do that if the batts are 24v. You could wire them for 24v while you are away too since you won't be needing any 12v then.
Measure the voltage at the battery posts to confirm the controller's setting in case of an index error on the controller's setting. Bit of trial and error time to get it right (1/2 hour?) Most of those have their temp comp on the controller itself, so mount it with the batteries for same ambient.
If you only have 24v panels, the Solar30 can do that if the batts are 24v. You could wire them for 24v while you are away too since you won't be needing any 12v then.
