Sunday, Jul 12, 2015 at 12:44
Ash,
"Also I understand that they plug in to the lighter thing (which is great as we have one in the back section of the Pajero... but when the car is off does the fridge still need to be getting power? will we need to have a generator or
solar power for it?"
Two comments about those "lighter things", ie standard accessory sockets:
One, they are useless for a fridge. They tend to jiggle loose and the fridge loses power, or they develop a bad contact, run hot an start to melt plastic. You should convert the one that powers the fridge to either a fridge-specific socket or a Merrit style or Anderson and then convert the fridge lead to suit.
Two, they are not always powered all the time - depends on the make and model of the vehicle. On my current model BT50 they are powered all the time, even with the key out and the car locked. On my just-departed Prado the key had to be on "accessories".
I concur other comments - you will need a second battery and an isolator and wire up your fridge to be supplied from the second battery. This gives constant power to the fridge for as long as the second battery lasts and prevents the fridge running your start battery flat. When the engine is running the second battery is connected to the charging system. When the engine is stopped the second battery and any loads it supplies are isolated from the rest of the vehicle's electrical system.
"Will you need a generator or
solar power for it?"
Depends how long you want to stay at one place without mains power or starting the car. It also depends on how often it's opened (kids?), the temperature you set it to, the ambient temperature, the capacity of the second battery and how efficient/how big/how much power your fridge draws. I would think that for a 12 month trip with family you're going to need some form of external power.
Generators are bulky, heavy and noisy - even quiet ones annoy other campers. Solar is good, but only when the sun shines. Ideally, set yourself up with solar first and see if you can manage with that - many can and do.
Setting up a second battery and solar for camping has a few things that need to be considered. First, your 12 Volt electrical loads - fridge, lighting, running a laptop, TV, etc. You need to do a power budget. Then size your second battery and solar to suit.
Mick O pointed you to a couple of good links that will get you started.
Keep asking questions - there are plenty of people here who can help.
Cheers
AnswerID:
556923