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Topic starter
March 16, 2026 9:52 pm
Hi - I currently am running an 6000xp paired with a 280ah eg4 indoor battery. My needs for the inverter have changed and I recently purchased a 12000xp and have a spare 100ah LL-S sitting around I would like to run parallel to give me 380ah of capacity. I know the recommendation is to run 3 100AH batteries to each 280ah but what are the issue(s) that I need to be aware of if I want to just parallel what I have? Ideally I would have another 280ah or 2 more 100ah but that is not currently in the card for another year due to finances. Can this setup be safely run? Any maintenance or install related items I need to take into account to make sure this will function properly? My load panel uses more then 4kw at any given time (normally sub 1kw) but I would like the added capacity an ability to run larger loads as I am Clipping power at this point. Appreciate any feedback.
March 17, 2026 9:55 pm
@gigemsteve07
The only issue you should be having would be that the 100A battery will discharge way faster than the 280A battery and will cause imbalance between both batteries.
Topic starter
March 17, 2026 10:42 pm
@eg4eric Thank you for your reply on this Eric - Are there any things I need to check to make sure or keep my batteries healthy (I was planning to set "On Grid EOD SOC(%)" to 26%) - or things to avoid or other settings/best practices? I was planning to run the 100ah LL-S battery as the secondary and the 280ah as host and then running short (less then 3') cables from the 100ah to the top of the 280ah. Does it matter which connection on the top bus I use? Any other items to take into account as part of this? Very much appreciate your help.
-Steve
April 2, 2026 4:07 pm
@gigemsteve07
That should work fine. The only thing would be the Amp hour difference. Other than that, it should work perfectly fine together.
