The short answer is no. You need the motorhome connected to mains electricity in order to power your sockets. A leisure battery cant supply enough power to do this. The mains electrical system is very similar to a household system except it will only power up to 16 amps.The short answer is no. You need the motorhome connected to mains electricity

Do I need an inverter in my motorhome?

A power inverter, or mains inverter is essential if you want to run ordinary domestic mains appliances in your motorhome, RV or caravan when you are off grid away from a mains hookup.

Can you run an inverter off a leisure battery?

Power inverters are often used by motorhomers and caravanners wanting to get off the beaten track but still take their creature comforts with them. Inverters connect to a 12V DC supply and convert it to a 230V AC output. They allow mains appliances to be run from a leisure battery or Caravan 12 volt supply.

Should you leave your motorhome plugged in all winter?

Generally, you do not need to leave them charging for the entire winter because they will overcharge. Overcharging your batteries will seriously hurt the health of your batteries. If you do not know what overcharging means, overcharging is when you leave something plugged in after it is charged to 100%.