MorningStar TS45

I assume it is the PWM time slice. If so it should be 100% in bulk and taper during absorption.

I believe you can program it to drop to float by the percentage.

Likely battery soc %.

My Tracer mppt has an option of 100% soc, or voltage comp., for when the controller 'thinks' the bank is full. I set mine to voltage comp, and soc went up and down with system wattage, from 50-100%, while the bank was in the high 90's. Problem with solar is, it's up and down like a toilet seat on new years eve. My thinking is, the controller couldn't possibly estimate soc, based on ever changing data, as volts and amps are constantly changing.

jrnymn7 wrote:
Are you referring to one of these?

Remote Meter

Manual

Yes that is the meter I am talking about. On the lower right side of the meter is where it gives Charge State Information. It tell if it is in Bulk, Etc. I seen it showing PWM XX%. With the numbers going from 45-98%. I am just trying to understand exactly what these number stand for? Gary

Are you referring to one of these?

Remote Meter

Manual