Originally Posted by Andina Marie
For what it will cost for 12 volt cables, or even the cost for 24 volt cables and the 5 to 10% voltage loss you will get, local 12 volt batteries at the winch will be cheaper and give better results.
I installed a 12v 1 kw QUICK windlass on a boat last month, and the installation
manual spec'ed #2 AWG cable, not #00 ... but yeah, even so, the #2 cable can approach the total cost of thinner #10 cable plus an additional 12 battery and a combiner... but then you have the added maintenance
of an extra battery and the combiner to worry about.
If a person was cruising extensively and anchoring
a few times a week, the extra battery might be justified and would provide some battery redundancy; otherwise... for the person who only anchors a few to several times a season, the simpler "heavy wire" solution might be the better choice.