Your maths was wrong going from 13 hours to 26 hours. 2x10 hours for both batteries and then around 3 hours for the fridge to go above 5 degrees. So 23 hours not 26. The only option you had with that fridge was a second plug in battery to take you to 3x10 hours + 3 hours to come up above 5 degrees. Just buy your shopping and fill the fridge when you get there :)
Apologies if I was a little off. Those 3 way fridges are very inefficient. I actually replaced the fridge before my trip and fitted a new compressor fridge. Total game changer. I connected the ecoflow via a trickle charger to the leisure battery while on the crossing which was 33 hours. When I arrived in Bilbao the ecoflow was dead but the leisure battery was still at 90%. Just brilliant. It’s was also 40 degrees everyday in Spain and the fridge maintained-18 in the freezer and 4 - 5 in the fridge. The old 3 way fridge would have been absolutely useless. No matter how many batteries you put on an absorption fridge you would never keep the contents chilled in that climate.
You can freeze a couple of bottles of water or buy a bag of ice to put in your fridge before you go. That will extend the life of the battery as it won’t need to kick in that much until the ice melts.
In fact you can freeze anything that is ok to freeze that goes in your fridge before you go. That will make your fridge into essentially a cool box for a long period before you’ll need to use any power to keep it cool.
I’ve actually replaced the 3way fridge with a new compressor fridge freezer. Full stocked it ran for almost 3 days in a large 12v battery without any charge. Totally a game changer and the freezer sits at -18 and the fridge at 4 I’m still going to use the ecoflow to charge the battery while on the crossing just to keep the leisure battery topped up.
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Thanks for the video thinking of doing something similar with a caravan with 340W panels
Your maths was wrong going from 13 hours to 26 hours. 2x10 hours for both batteries and then around 3 hours for the fridge to go above 5 degrees. So 23 hours not 26. The only option you had with that fridge was a second plug in battery to take you to 3x10 hours + 3 hours to come up above 5 degrees. Just buy your shopping and fill the fridge when you get there :)
Apologies if I was a little off. Those 3 way fridges are very inefficient. I actually replaced the fridge before my trip and fitted a new compressor fridge. Total game changer. I connected the ecoflow via a trickle charger to the leisure battery while on the crossing which was 33 hours. When I arrived in Bilbao the ecoflow was dead but the leisure battery was still at 90%. Just brilliant. It’s was also 40 degrees everyday in Spain and the fridge maintained-18 in the freezer and 4 - 5 in the fridge. The old 3 way fridge would have been absolutely useless. No matter how many batteries you put on an absorption fridge you would never keep the contents chilled in that climate.
You can freeze a couple of bottles of water or buy a bag of ice to put in your fridge before you go. That will extend the life of the battery as it won’t need to kick in that much until the ice melts.
In fact you can freeze anything that is ok to freeze that goes in your fridge before you go. That will make your fridge into essentially a cool box for a long period before you’ll need to use any power to keep it cool.
I’ve actually replaced the 3way fridge with a new compressor fridge freezer. Full stocked it ran for almost 3 days in a large 12v battery without any charge. Totally a game changer and the freezer sits at -18 and the fridge at 4
I’m still going to use the ecoflow to charge the battery while on the crossing just to keep the leisure battery topped up.