8 Gauge Wire
Got 25' of red and black 8 gauge copper wire, a 40 amp breaker and some lugs. I plan on wiring this truck correctly for the 12v frig. I hate to admit I never wired the three previous trucks correctl...
Forum Discussion
I disagree with a few things here.
The first is, 8-gauge is still way too small. 2-gauge or larger is more like it. Especially if you plan on running your fridge on 12V. One easy and cheap way to get them that I’ve done is to buy a set of 25’ 2-garage jumper cables and cut the clamps off.
If there was a risk of blowing up the batteries with a heavier charge line, you’d see batteries blowing up when people jump start cars with dead batteries. It doesn’t happen. And you absolutely will not get anything close to 150 amps through 25 feet of 8-gauge anyway.
Generally, people are only running their fridge on 12v while driving, and that works OK.
It’s totally worth running heavy-duty camper battery charging cables even if you never use the fridge on 12V.
They barely charge at all through the stock tiny wires and light-duty 7-pin RV plug.
The first is, 8-gauge is still way too small. 2-gauge or larger is more like it. Especially if you plan on running your fridge on 12V. One easy and cheap way to get them that I’ve done is to buy a set of 25’ 2-garage jumper cables and cut the clamps off.
If there was a risk of blowing up the batteries with a heavier charge line, you’d see batteries blowing up when people jump start cars with dead batteries. It doesn’t happen. And you absolutely will not get anything close to 150 amps through 25 feet of 8-gauge anyway.
Generally, people are only running their fridge on 12v while driving, and that works OK.
It’s totally worth running heavy-duty camper battery charging cables even if you never use the fridge on 12V.
They barely charge at all through the stock tiny wires and light-duty 7-pin RV plug.
