Enthusiast I
I have the same set up with Ctek 250 and the sense app. The drop in battery is defo not the Ctek sensor. Might be worth a look at the calibration on the app?Wow hooked up the solar panel the CTEK app says its pushing 13.05 Volts been like that past few hours. Rich solar 100 w off amazon for 80 bucksFinished my Aux battery install, I used the CTEK 250SA DC to DC charger which feeds my 100 AH battery. This feeds the 3000 Watt inverter, a Switch bank for aux components, and a 12V and USB charge points located on the control panel. I still need to improve the control panel as I feel the plastic was to thin for my needs. I added the battery blue tooth sensor with app but I will prob remove it as my battery went down over 20% since it was installed. I will see how it works when I add the solar panel to the CTEK later in the week.