Programming the KT controller - Configuring P5 parameter
P5 is the customizing parameter for the battery gauge. It is described as a limiter to reduce excessive fluctuations in the meter during throttle use but it is also used to determine when the display should show the relative depletion of the battery. I personally want 1 bar (value of U in formula below) to tell me that the battery is close to dead because some semblance of actual battery voltage would be nice to know when I'm 15 miles from home. The KT LCDs are supposed to detect battery voltage and determine the base voltage of the pack but at certain voltages, it's possible that it can get confused and think it's seeing a fully charged 36v pack when it's really a nearly depleted 48V or 52V pack. Leaving P5 at 0 just leaves the meter reading at the mercy of the display logic and will probably be OK over time if it can figure out and remember the pack's voltage. There is a formula that can be used to configure P5 and it incorporates the low voltage configuration i