How long will the battery last

[Chadders]

I have a new leisure battery and 120w solar panel also new. Thinking of the possibility of using some basic smaller sights and using a pitch without hook up. Also cost saving exercise.
What is a reasonable time for the battery to last running the tv lights etc for about 4 hours each evening. Also pros and cons of using the fridge on battery or gas and also heating and hot water?
Thanks

 

[Hutch]

Your fridge will only run on Gas, off Grid, ( no EHU) most modern vans will use 12 volts to power, heating and hot water, , water pump for showers, sink etc., on the control sides.
If your internal lights are LED then they will draw a small amount of power.
The TV, is the biggest power draw, depends if it is a 12 volt or 240 volt going through an inverter ie 12vt volts to 240 volt.
Many folk can last a week plus, sitting outside the caravan with a headlamp on their head reading a book.
Others have all the lights on , etc. the only way to check is to go to a EHU pict and not use the power, just use the van.

 

[Mr Grumpy]

We go off-grid nearly all year round.
Charging the battery obviously depends on the weather, the amount of daylight hours, cloud cover etc. With a bit of thought you can be off-grid for several weeks at a time.
Heating, hot water, fridge run on gas. Far more efficient. We actually find the fridge cools quicker on gas.

 

[Beachball]

Your fridge will only run on Gas, off Grid, ( no EHU) most modern vans will use 12 volts to power, heating and hot water, , water pump for showers, sink etc., on the control sides.
If your internal lights are LED then they will draw a small amount of power.
The TV, is the biggest power draw, depends if it is a 12 volt or 240 volt going through an inverter ie 12vt volts to 240 volt.
Many folk can last a week plus, sitting outside the caravan with a headlamp on their head reading a book.
Others have all the lights on , etc. the only way to check is to go to a EHU pict and not use the power, just use the van.

At present looking at a TV 22inch Avtex /Cello 12v/24v /240 are these better suited for your battery because we are on a meter system .

 

[ProfJohnL]

At present looking at a TV 22inch Avtex /Cello 12v/24v /240 are these better suited for your battery because we are on a meter system .

I don't understand your concern or point. What do you mean by a meter system?

 

[birdman101]

At present looking at a TV 22inch Avtex /Cello 12v/24v /240 are these better suited for your battery because we are on a meter system .

Just looked at the specification and uses no less power than our LG which is far cheaper to buy. If you are on a metered supply will make negligible difference to your consumption cost

 

[otherclive]

I don't understand your concern or point. What do you mean by a meter system?

Power consumption a modern tv is minimal, but if you have solar panels to charge the battery it will run on 12v, but since your pitch is hooked up to EHU what are you trying to achieve. You could turn off EHU and run on 12v battery supply which might save a small amount on your metered charges. But frankly is it really worth it on your pitch.