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Post by Solar trailer on Mar 17, 2020 2:32:46 GMT
I have a bank of two 170 ah renogy batteries interconnected in parallel with 2 awg.
I need to attach the 3000 w invertor with 4/0
The rover 60amp with 4 awg
And a progressive dynamics 60 amp lithium charger with 4 awg
Do I need to fit all of these on the same posts (bat 1 positive & bat 2 neg) or can they be split up. And if they can be split should certain components stay together.
By split I mean some components on bat 1 pos and bat 2 neg, while having some components on bat 2 pos and bat 1 neg.
Also, Renogy confirmed these wire sizes were correct, but if anything looks off please let me know
Thanks!
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Post by tattoo on Mar 17, 2020 2:45:16 GMT
Can you draw and post a diagram of what your wanting to do to make sure that we are understanding what your saying?
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Post by solar trailer on Mar 17, 2020 14:43:43 GMT
![]()  ibb.co/Xxh73CfIs the purple wiring the only safe option? Is the blue option a possibility? Is there an ideal wiring? Also, does the gauge wire look right? Thanks! |
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Post by mediadogg on Mar 17, 2020 15:47:21 GMT
To me, the wiring looks correct, and exactly what I would do. What is missing are the lengths, but your gauges are large enough to cover most situations, especially where things are typically close, such as the two batteries.
What would suffer the most would be a large distance between the inverter and the batteries. Those wires can be as big as you can tolerate and you will benefit. Every fraction of an ohm matters between those two items (due to high current surges).
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Post by Solar Trailer on Mar 17, 2020 16:09:20 GMT
Both Purple and Blue are valid options? would either be more efficient or safer? Everything is really close in a trailer tongue box, with temperature activated fan. ibb.co/CmqdbPQInverter to batteries is 18 inches, rover 60 to batteries is 3 feet, Progressive dynamics AC to lithium charger is 18 inches. It would be easier if I could reduce the 4/0 size between the inverter and batteries, especially since the renogy inverter posts will not accept those terminals without modification. But I am willing to stay with it if anything smaller might cause problems. Thanks much! |
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Post by mediadogg on Mar 17, 2020 17:20:21 GMT
Both Purple and Blue are valid options? would either be more efficient or safer? Everything is really close in a trailer tongue box, with temperature activated fan. ibb.co/CmqdbPQInverter to batteries is 18 inches, rover 60 to batteries is 3 feet, Progressive dynamics AC to lithium charger is 18 inches. It would be easier if I could reduce the 4/0 size between the inverter and batteries, especially since the renogy inverter posts will not accept those terminals without modification. But I am willing to stay with it if anything smaller might cause problems. Thanks much! The one you want to reduce is the very one I would keep. The charger and CC wires could probably go down to 8 or 6 AWG. But the wires between the inverter and the batteries should be as heavy duty as your installation will allow. The ultimate source of information is the CC and charger manufacturer manuals. Actually the Renogy support line is very helpful, and have you seen the new Support Site? Lots of help FAQs, configuration and sizing information. |
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Post by tattoo on Mar 17, 2020 17:40:34 GMT
But I am willing to stay with it if anything smaller might cause problems. Thanks much! Be sure and use the largest wire size and shortest length you can..... Your system will love you for it in the long run......
I still can't believe how many people take the cheap wrought on wire size thinking it's ok and it will still work the same....... Your doing it right the first time........ That's awesome....
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