inputs.text: documentation support weak - received controller read manual found lacking setup information page 7 says \\the controller preset operate lead acid batteries liquid electrolyte intend use solid electrolyte \\gel\\ type \\fleeze\\ type adjust charging characteristics see settings\\ found settings section page 11 read \\the controller configured special operation ppurpose open cover controller rehemoving screws back side warning controller not opened connected operation controller opened 3 jumpers electronic board\\ no instructions jumpers way no screws back controller need configure controller acid glass mat agm battery no instructions called support number manual transferred support person took twenty minutes explain problehem support person kept misunderstanding problehem finally said call back hours could research issue apparent not experienced anything basic installation called back went explanations lack understanding finally able get understand needed setup different preset said no way change said call back 10 days would another controller would work different types batteries stuck 400 dollars worth solar panels cannot use controller not work batteries camping 10 days big problehem since lot rvers gone agm batteries especially solar superior characteristics reliability not logical controllers not support agm charging requirehements newer converters ac battery chargers rvs work agm come factory calling back next week see communicate enough get chargercontroller work agm batteries wish luck think need