To check the voltage settings, connect the charger to a fully charged battery, in good condition, with the correct number of cells. Connect a calibrated, accurate, digital volt meter or multi-meter to the battery terminals. Switch the charger on and observe the green-yellow-red LED indication. A Yellow LED light will then come on indicating that the battery is charging. After a few seconds, the charger should reach the voltage limit and enter the constant voltage stage (indicated with a flashing yellow light, or the 80% charged LED light coming on). When the battery is in constant voltage mode, observe the volt meter reading. The default setting should be 14.5 V, and if this is off it can be adjusted using the preset pot marked V-LIM1. Next, locate the test point link on the PCB and temporarily bridge the test point pins with a small flat-blade screwdriver. The green ready LED should turn on, and after a few seconds, check the reading. The default setting should be 13.8 V, and if this is off it can be adjusted using the preset pot market L-LIM 2 or STVY.