Fuse?

[kuba122]

You'll need to check your battery charger. The battery voltage should be approximately 13.5 V when there is nothing turned oat uses 12 volts. Plug in, check that your battery volatge is above 14, maybe 14.2 to 14.7 volts. if not, then the charger isn't working.

You could also disconnect the battery black lead .... plug in your RV and see if any of the 12 volt devices (radio, lights, etc.) operate. If not, your 12 volt converter is bad or not properly hooked up.

[Tmart]

Battery runs down even when connected to AC.