I need help with an offgrid camping fridge solution
Discussion
I've been reading this section with some interest on the offgrid topics that keep cropping up and giving it some thought for my situation.
I am an field archer who mainly shoots 2 day events, and the nature of the game means its usually a field in the middle of nowhere. Usually I camp, which I am more than happy doing, but the lack of power means no fridge for milk etc. I do have a powered cool box which is great for travelling to the event but doesn't keep stuff cold enough to last 24 hours, even with frozen chill blocks.
The cool box itself has both mains adapter which states it outputs 12v dc 60w, and the box itself which states 12v 47w input, I also have a spare car battery which is 60AH. The car battery is what I have to hand, and when I ran it last time, it ran for about 12 - 14 hours. I know I would be better off with a lesiure battery but the car one is what I have to hand now.
To take the drain off the loose battery, I am having a 12v socket put in the boot of the car so the car can power the box to the events, leaving the battey purely for when I'm there. What I need is a solution that can extend the chill time by another 12 - 24 hours.
A typical example would be turn up friday evening and set up, then run in off grid mode until Sunday morning. This means I can have milk for breakfast and coffee without haaving to resort to powered milk
It also means I can have a cold beer Saturday night 
I am an field archer who mainly shoots 2 day events, and the nature of the game means its usually a field in the middle of nowhere. Usually I camp, which I am more than happy doing, but the lack of power means no fridge for milk etc. I do have a powered cool box which is great for travelling to the event but doesn't keep stuff cold enough to last 24 hours, even with frozen chill blocks.
The cool box itself has both mains adapter which states it outputs 12v dc 60w, and the box itself which states 12v 47w input, I also have a spare car battery which is 60AH. The car battery is what I have to hand, and when I ran it last time, it ran for about 12 - 14 hours. I know I would be better off with a lesiure battery but the car one is what I have to hand now.
To take the drain off the loose battery, I am having a 12v socket put in the boot of the car so the car can power the box to the events, leaving the battey purely for when I'm there. What I need is a solution that can extend the chill time by another 12 - 24 hours.
A typical example would be turn up friday evening and set up, then run in off grid mode until Sunday morning. This means I can have milk for breakfast and coffee without haaving to resort to powered milk
It also means I can have a cold beer Saturday night badgerade said:
As mentioned, the best option is a waeco or engel would be the best idea, but they are £500+ so overkill for keeping milk cold 
Aren't they just for 6 - 10 times a year! This little cool box does keep stuff cold suprizingly well, certainly for my needs, just not for long enough.Gassing Station | Tents, Caravans & Motorhomes | Top of Page | What's New | My Stuff