Hi all, a couple questions on this charge controller, which I just bought:
1) I see it auto-senses batter voltage (12/24/48). In my system design, it's more advantageous for me to put 2 lead-acid batteries in parallel at 12v than in series at 24v, so I get more AH's. Is there any disadvantage to 12v (parallel)? For example, is there an efficiency loss?
2) does this model controller need a relay added, so it's able to disconnect the load if the battery is too discharged? This is mentioned in the data sheet, and is a bit surprising it wouldn;t have a built-in relay. If it's needed, how do I interface the relay and what kind is needed, etc? (details)
3) I assume the optional battery voltage sensors display their data on the mobile app for the controller, correct? Do they have their own bluetooth connection, or use the controller's? If they connect together via Bluetooth, is a BT connection still available for my cell phone?
Thanks much!
