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Does the ordinance explicitly ban off-grid construction? It is possible (you have done it) to have 100 amp service off grid. --vtMaps

Why should that pop the line breaker? The path to ground is not low enough resistance to pop the breaker. This is why ground and arc fault breakers exist, although I don't know how practical these...

You must separate the strings and do your testing, equalization, etc on just one string at a time.

One of the many problems with having batteries in parallel is that when a single cell (in just...

Welcome to the forum. two 6 volt, 60 ah batteries in series is a 12 volt battery at 60 ah, not 120 ah. Most of the cheap golf cart batteries are a bit over 200 ah, so your plan to buy two GC...

That box is usually called a combiner box (if you have two or more strings of panels). It is good to have a combiner box outside the house with a lightning arrester.... then bring the wires (without...

If you are running your battery cables in conduit, be sure to have it enter the battery box below the tops of the batteries... you don't want hydrogen rising up into the conduit.

--vtMaps

Just to be clear... You changed the discussion from 'maximum input voltage' to 'maximum watts or current'. They are very different types of maximums, and the consequences of exceeding them are...

That means that the battery can provide 5.32 amps for 100 hours. Or the battery can provide 20 amps for 20 hours. For most (all?) batteries the slower you discharge them, the more AmpHours you can...

If you exceed the maximum input voltage of some controllers, they are destroyed. The Midnite controllers have HyperVoc which means that when you exceed the input voltage they stop working, but are...

I agree with unicornio. In a series battery bank, none of the cables need to match. Of course, they should all be as short as possible.

In a parallel bank, once the parallel strings are joined,...

That means you might be running lightning into your home. I like the systems where the combiner box is on roof or side of building and the wires from the panel frames and combiner ground run down...

I agree with the others about upgrading to PSW. Just because your fridge can work on MSW doesn't mean it can work efficiently, and the inefficiency of the motor on MSW means more heat in the motor...

Bill speculated that you have a Vanner equalizer. Is that correct? If so, and everything was working fine, It would seem the simplest thing would be to add 24 volt (rather than 12 volt) solar...

I think that 'ywhic' built one from QO breakers. I don't think that they are rated for a 48 volt system. --vtMaps

It is beneficial at almost all wattages.

The question is: Is it worth hundreds of dollars to improve the efficiency of a 100 watt system (perhaps an extra 25 watts) versus hundreds of dollars to...

Keeping the cold air from spilling out is, IMO, an overrated feature. Some time ago I did some calculations on this forum about that. If I recall correctly, the results were something like this: ...

One way to deal with this is use a battery selector switch. With a switch you could charge/discharge a couple of strings at a time.

To understand some of the problems with parallel batteries,...

I have not seen any problems with my outback and eu2000 that couldn't be cured by turning off the eco-throttle on the honda.
btw, I have my AAC in set to 14. The charger limit depends on your...

The 240 volts AC is a root-mean-squared (RMS) 240 volts. The peak to peak voltage of 240 RMS is about 330 volts. Some inverters require the full peak-to-peak voltage (as a DC voltage) in order to...

Outback does end amps with their Flexmax controllers. You must also have their FlexnetDC battery monitor. --vtMaps