13-08-2021, 03:19 PM
I assume it is a 4 position switch, which has probably been changed. The first position is probably low charge rate, 2 is full charge, and the lighting positions are self evident. 1 & 2 would origianlly have been Summer and Winter. With no compensation of the charge rate depending on the state of the battery the driver has to make his own judgement of what is appropriate.