Power use - 3 way fridge

Submitted: Sunday, Oct 19, 2014 at 18:03
ThreadID: 109863 Views:2480 Replies:3 FollowUps:2
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I have a Chescold 40ltr 3 way fridge which draws 10amps when on 12 volt power. We use gas when stopped. Fridge has been great in all weather so the fridge is not my concern - I am embarking on a 5 week trip across the top end, and my concern is simply the ability of my 4x4 to keep the second battery charged. I have a 2010 Mazda BT50 with a properly wired second battery 100ah. If I travel about 400klm's per day, will the alternator keep the battery charged or will I be using more than the charge rate - the only other gear I will be using are mobiles and laptops with a few LED lights.
I suspect the battery will be depleted a little each day and within a week or 2 I will need to top up the second battery via 240v or solar - prefer not to cart solar gear.
Any thoughts please.

PJ
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