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Post by classhd on Nov 27, 2017 16:51:00 GMT -8
rabird tattoo Hi guys! Thanks for your help I am understanding better. The cable that I am using is the cable that is similar to the welded wire but the threads are thicker, it is measured equal, for example, where I live the cable that comes from the pole that provides power is 00awg and the one that enters the current meter of my house is 2awg, the panel of breakers uses cable 10 and 12. In my case I am not using the welded wire, it is normal cable but the copper wires are thick and rigid, they are uncomfortable to bend. I bought today 4awg for the battery interconnect with mechanical copper terminals lugs and 8awg for the 200ah battery bank to inverter. The 8awg cable will have Seltzer bare copper lug ring terminals. I don't know if I'm buying the right stuff. My loads are low, no more than 200w, for that reason I think like I'm cooking amp/hours when the battery is charging using a cable wider than the one that sends energy to the inverter.
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Post by classhd on Nov 27, 2017 17:15:09 GMT -8
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Post by classhd on Nov 27, 2017 17:51:09 GMT -8
OMG! Guys I'm laughing right now... You can call me Mr Heavy-Dutier guy.... Always looking for heavy connections and forgetting performance... For battery interconnect I'm using this: www1.panduit.com/en/product/CB175-38-QYWith 4 AWG building wire And for inverter connection I'm using this: www.sherco-auto.com/copper-lugs-and-terminals-made-in-usa.htmlWith 8 AWG building wire Do not ask me yet I do not know how it happened. Imagine a person in the store who does not know what is looking for but the seller is going to sell me the most expensive, $5.69 for each mechanical lug and there are 4 in total, $2.49 for each ring lug and there are two in total, plus 6 feet [2x (+-)] 8 AWG building wire and 1 feet [2x (+-)] 4 AWG building wire too.... |
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Post by tattoo on Nov 27, 2017 17:52:22 GMT -8
Yep that was a bad choice.. What you need is battery cable like they sell at battery stores, Auto parts, Batteries plus bulbs etc... |
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Post by tattoo on Nov 27, 2017 17:57:22 GMT -8
Those at the bottom are what I used everywhere.. Those at the top I used smaller ones for my ground.. Don't for that you need to ground the CC and the inverter to a separate ground not to your AC house ground.. Not the panels at least I didn't.. |
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Post by classhd on Nov 27, 2017 18:04:30 GMT -8
I'm thinking I have a 45% loss with those connections.
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Post by tattoo on Nov 27, 2017 18:06:45 GMT -8
LOL Man don't let it bother you we have all don't it.. I've got things that I bought for my solar system when I first started that I will never use but that's ok I was learning just like you... Now take that wire back that you bought and get your money back.. You will never use it or take it apart and use it for ground wire to tie them together.. |
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Post by tattoo on Nov 27, 2017 18:09:11 GMT -8
I'm thinking I have a 45% loss with those connections. No where close if you crimp them properly, I'd say it's 0% loss, You can also solider them if your worried.. |
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Post by classhd on Nov 27, 2017 18:19:55 GMT -8
I'm thinking I have a 45% loss with those connections. No where close if you crimp them properly, I'd say it's 0% loss, You can also solider them if your worried.. The only thing I should change is the cable? I will try to find battery wire, right now there is a shortage where I live of everything that is used to generate energy. |
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Post by tattoo on Nov 27, 2017 18:22:34 GMT -8
Ok If that's the case use what you have until you can find the right cable... Problem solved..
Yes everything else should be fine.. What did you find out about fuses and cut outs??
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Post by classhd on Nov 28, 2017 5:26:02 GMT -8
Ok If that's the case use what you have until you can find the right cable... Problem solved.. Yes everything else should be fine.. What did you find out about fuses and cut outs?? I am now looking in auto-zone, pep boys and any vendor of car parts and sound systems, I'll tell you at the end of the day  |
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Post by classhd on Nov 28, 2017 9:54:41 GMT -8
Ok, I got battery cable 4 AWG for the battery bank, it is a fat cable but looks cheap, I hope it works to interconnect batteries. I got battery cable 8 AWG but I see it is very thin to make the connection between battery bank and inverter. The person who sold it to me told me to use the same cable that interconnect the batteries to connect the inverter but when I told him that the inverter was 400w he told me he did not know if it worked. Any suggestion?
There are no fuses available in nearby stores, I will have to install everything without fuses, when I get them I'm going to make a new installation with the fuses and shutoff. For now the most concern is whether 8 AWG battery cable will hold the 400w inverter load?
Thanks!
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Post by tattoo on Nov 28, 2017 13:32:12 GMT -8
How big are the lugs where the cable hooks to the inverter?? I used #4 from my batteries to the inverter.. Do you have a local car stereo install shop where you live??
Oh by the way I have a 500 and a 2000w inverter in my system.. A #8 braided copper cable should be ok for a 400w inverter but I would like it to be bigger..
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Post by classhd on Nov 29, 2017 4:27:20 GMT -8
How big are the lugs where the cable hooks to the inverter?? I used #4 from my batteries to the inverter.. Do you have a local car stereo install shop where you live?? Oh by the way I have a 500 and a 2000w inverter in my system.. A #8 braided copper cable should be ok for a 400w inverter but I would like it to be bigger.. I am using the mechanical terminal on the wire hairs of the cable to connect the batteries and the inverter cable is connected in wire hairs to the batteries to the same mechanical terminal and has #8 lug which is what corresponds to the inverter. |
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Post by tattoo on Nov 29, 2017 6:02:44 GMT -8
^^^ That sounds good to me..^^^
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