Wire Gauge Required Question
For some reason I just can't understand the various wire gauge tables, and I have tried to, so I am hoping somebody will take pity and do all the work! :) One table that I can follow says that for...
Forum Discussion
ktmrfs wrote:
all very good questions and good analysis, especially if starting from scratch. In my case, since I use portable panels, size/weight for carrying, and storage space are much more important to me than in a fixed roof mount. Also, wanting to be able to go up to 100ft away from the trailer gets into power loss issues much more so than in a more typical use case. And I already had the two 80W panels anyway and was just looking to maximize output at a long distance.
At least there are lots of alternatives to pick and choose from to do what each individual thinks best fits their application.
choice between MPPT and PWM is kinda like the choice between 6V GC batteries and 12V batteries. First understand carefully your needs and what's important, then determine which choice best fits your needs and budget.
From what I am reading, folks are pretty lucky to get more than a year out of a 75 ah 20hr rate $70 group 24DC that has a lifetime of 150 50% charge cycles, where as a GC-2 from Costco or Sams Club puts out 210 to 225 ah at 20hr amp rate, and folks seem to get 6 years out of them that use them a few times a year... no brainer there. Now if you full time reside in your RV and cycle daily, then the Trojan brand GC-2 T-105 is the gold standard, and you pony up and get it instead for the lowest cost per recharge, lifetime.
As usual... the answer always is... it depends...
