Mary X.
What should be done if the 'CHARGING' light remains orange and the AkkuBox proBatt 12/12-L is unresponsive?
Check the fuse installation, ensuring it was correctly installed during initial setup. Verify the 'SYSTEM ON/OFF' switch is in the 'ON' position. If the fuse is inserted but no lights appear, replace it with a new, low-amperage F15A fuse.