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makes complete sense… THANK YOU everyone, THANK YOU FOR HELPING ME ON THIS on this I HAVE DECIDED to bite the bullet and REDO my design so batteries can be no more than 6-8 ft cable length away from the inverter. There is a reason I am sure, that all the inverters recommend short distances...

wow… thank you very much. along with everyone’s responses I am feeling more confident about this. 30ft of 4/0 . Thanks for input on taping cables together… all good

thank you very much for this. my goal is battery use during the day and recharge from GRID at nite for now. Under 3% is still good. Hopefully solar can come later. 60kwh of battery would allow several days perhaps.

ouch… thank you. i dont know either…. my load test of everything in my house turned on and running on the 200A Main Panel including some 220v machinery and my AC peak at under 100 amps. My avg use peak is about 10-15A ok, they are nearby too

thanks again…i did see this chart in 18k manual but the 10ft MAX DISTANCE for 4/0 thru me off which prompted my post. the fact that they list a 4/0 cable size should have answered my lug concerns… duh.

yes… the colored heat shrink is a must; great comments… thanks again.

outstanding… i will check this out. i was going to use the link from Will’s site that is to WindyNation wire on Amazon

awesome! so 4/0 cables in 18k work… THANKS for THIS.

so… thanks everyone for feedback… so back to my original question; if 4/0 at 30 ft for battery cable into the inverter is what I go with as discussed: can i use a EG4 18k that has 2/0 lugs for AC and battery by reducing to 2/0 thru a unitap or block going into the EG4? rather than go with...

got it… thank you very much

thanks for this...

appreciate the feed back… voltage drop being negligent… but is there any danger or other things to note?

i chose to do it that way due to space constraints on walls where batteries must go; i pondered this alot and it may have been wrong conclusion

i guess worst case for me; is to REDO everything from whats been installed and run 30 ft of 4/0 SER to relocate the inverter and switch near batteries… arghhh.

thanks for this; cost aside… i am hoping i can make this but am asking for input from you all. AC is all installed already with 20 ft of 4/0 SER cables between the to transfer switch, main panel and meter; ready to go if this is dangerous or not advised; i need to punt and build an...

its expensive but, my system design requires batteries to be on other side of garage from the inverter and transfer switch which is a total of 30 ft total cable length run thru soffit to a distribution block for the battery rack. I understand ideally batteries should be closer to the inverter...