Solar charging for a camper-van


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disco4now

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Joined: 18/12/2014
Location: Australia
Posts: 1133
Posted: 10:23pm 04 Nov 2024      

  PhenixRising said  My friend has a camper-van

What is already in there. Is it setup as a camper-van already just without any solar.
e.g. typically a house battery that charges while driving, the house battery might run a 12v refrigerator and some lights. This might give you one night away from 240v power. It would also have a 240v charger to charge the house battery when you are hooked up to 240v at a camping site.

If its already got the above then something like Redarc redarc-bcdc1225d could be used to bring solar into the system.

A bit more info on the expected usage would be required to determine what else is needed. Typically you would aim to have most of the load as 12v i.e. lights,TV,fridge etc and only use an inverter for what really needs 240v and probably just turn it on as needed. The required inverter size and battery size will be determined by what you expect to run and how long you want to stay off grid. You will also need some sort of low battery cutoff that is not shown in the sketch above.

If there is no house battery already you might consider a lithium battery with a built in BMS.
Edited 2024-11-05 08:24 by disco4now