2022 TAB 320 Why won't my battery charge?

Sparrel

Recently our battery drained all the way down after only two nights of boon docking in a fairly sunny location. Last year our battery lasted 4 days at a shadier site.Guessing that the battery needed to be replaced  I went ahead and bought a new Deep Cell battery similar to the original one. The new battery also discharged within two days. When we got home I stored the TAB in our garage and plugged it into a wall socket like usual. The refrigerator is off. We've been home a week and I opened the camper this evening and the lights would not work. The battery is totally drained even though the TAB is plugged into our home electricity. Would anyone have any idea why is malfunctioning? I would greatly appreciate any help.
Sparrel Wood

Grumpy_G

If the interior lights don't work while the trailer is plugged into shore power it's because the converter/charger isn't working. Check the breakers in the power center. Do the 120V outlets in the trailer work ?

Sharon_is_SAM

@Sparrel - 2 issues here:  solar charging vs converter charging

Are you using your solar controller (Victron)?  Is it charging your battery?

Did you check the garage outlet for power?
Does the light come on at the trailer end of the power cord?
When you plug in to shorepower, is your battery switch turned on?
Have you measured the battery voltage?  If so, how?

Mickerly

Is your battery disconnect open or closed. If the battery is disconnected, shore power will not change the battery.