1L243 wrote:
Today I checked battery connections, water pump connections and connections at the converter power supply. All seemed fine.
The trailer is a 2017 and has two new batteries. I installed a battery monitor inside the trailer wired directly to the the batteries.
When on battery and running cabin led's and the water pump the voltage drops about .08volts on the monitor. The lights only flicker when on battery they don't flicker when plugged into 110.
Have you determined if the lighting and water pump are on the same fuse? If so, depending on how the traier is wired, the LEDs may be seeing more voltage variation than your battery monitor is showing. Also how far is the water pump from the power panel and also from the pump switch?
The actual instantaneous voltage variation also may be larger than your battery monitor is showing due to the transient high start current pulled by the pump motor as it pulses on and off. You might be able to reduce the flickering by connecting a large (> 100 ufd) capacitor across the pump power and return to provide some of the surge current.
