Solar Energy Off-Grid - Part 2 - Electrical Goodies

[shartne]

my off gird inverter take four o wire

[shartne]

I really paid too much for Hoffman box I paid 60 bucks for it. on ebay LOL I paid too much for my battery cables that are only 4awg I think at advanced auto parts. Man did i get ripped off. I d like to know were you got those awesome battery cables at? My meter was about 20 but its a 75 amp not too bad a deal and its really old stock. I wonder if it has a shunt in it? I need some fuses still dont have any where the heck did you get that fuse holder and fuse for four bucks at?

[wtam69]

How can you tell if your analog amp meter has a built in shunt or not ? I might have bought one that dosen't have a shunt built in. Also, I have seen people connecting the meter in series with the positive side and some on the negative side. Does it matter? I have seen the development of your system from the start. I'm watching to see what I can emulate to make mine better. Thanks for showing.

[Fearlessthinker]

@wtam69 Yes, that is a common problem. The ad should say but if the "back view" is rather thin then the shunt is not internal. Ammeters are basically voltmeters measuring volts across a low-ohm but physically large power resistor (shunt). The one I bought did have "internal shunt" identified in the ad. This is a Class 2.5 meter which means that in the "core range" (5-45A) the reading is within +/-2.5% of the real value, which on a 50A scale is +/- 1.25 amps. Plenty good for this application.

[wtam69]

@Fearlessthinker Thanks. I learn something new today.

[Fearlessthinker]

@wtam69 On the question on which side of the battery to measure the amps, it doesn't matter other than it is safer to have it on the negative side.

[bigshotdadz]

@Fearlessthinker : I too wanna know where you sourced those battery cables!!!

TELL US!!!! :))

[Fearlessthinker]

@bigshotdadz The seller was on Ebay but they are no longer there, sadly!