Leasure Batteries K-Put Me Thinks (1 Viewer)

[sally47]

Been checking the reading of leisure batteries daily for past week or so (van parked on drive with ehu) and readings are going down to 12.4 overnight without using anything Charge them up in the day from onboard charger then over night down to 12.4 have electric on for converter heater Max when been charged 13.7 use to be 14.2 Batteries are Banner x2 and three years old anybody I need new ones Forgot to add have 140 solar on roof

 

[jointerjohn]

My 125 watt solar panel keeps my 2x 125ah leisure batteries well topped up through the winter! i do not check what the voltage is throughout the night, our van is not on ehu ! i thought that was why we have solar panels ? is this not normal ??