[Carl n Susan]

If your converter is Lithium capable, there will be a small switch by the green blinking light to switch from LA to LI. It changes your charging profile to lithium


OPTIONAL OUTPUT MODE SWITCH:
The optional OUTPUT MODE SWITCH sets the converter output to either a constant 14.6VDC with the Charge Wizard® disabled (switch in ‘LI’ position) or a nominal 13.6VDC with full Charge Wizard® function (switch in ‘LA’ position). ‘LI’ mode is intended for use with lithium batteries with a BMS requiring a constant converter output. ‘LA’ mode is intended for use with lead/acid batteries where the Charge Wizard® will optimize battery charging.
NOTE: The OUTPUT MODE SWITCH should only be switched when new batteries are installed.
Verify battery type before adjusting the output mode switch.