Help me buy an inverter
I don't think I need anything fancy. I have 2 things I want to run on battery occasionally. 1. Keurig Coffee maker 1450 watts for about 6 minutes per day 2. Fridge in my outdoor kitchen when ...
Forum Discussion
Almot wrote:
Thanks SMK.
OP: you mentioned a pair of 36" cables. Keep in mind that V-drop calculations use a one-way run, i.e. the required cable gauge will be based on 3ft total length, not 6ft. For current 130 VDC you need at least gauge 0. With 3ft length (i.e. 3ft each) a gauge 0 could work.
V-drop on the battery is a different matter. Small bank and old batteries = rapid V-drop. To me, the reward - making a cup of coffee with this particular method - is not worth the risk of killing batteries or shortening their life. But this is just me. My offgrid living is more a living than camping, and there are usually no battery stores nearby.
Careful of that voltage drop one-way or return that doubles the length. Some tables use the return trip on the single wire value while others use one way for the pair. Read the fine print.
Eg, this one uses one way for a pair
http://www.calculator.net/voltage-drop-calculator.html?material=copper&wiresize=2.061&voltage=12&phase=dc&noofconductor=1&distance=60&distanceunit=feet&eres=8&x=42&y=5
