3 Batteries in Parallel--tight connection

[henkew]

I have 3 230A batteries I'm connecting in parallel. One of the connections (an end battery) is very tight and I'm not sure I can safely get two 4/0 gauge lugs on the battery. I was thinking I'd make this the negative line to the Lynx Distributor. Can I use a short length from the end battery to a busbar where it joins with the other battery, and then goes to the Lynx Distributor? Excuse the rough mock up... but something like this:

Would this work, or does anyone have any suggestions? I can get 1 4/0 AWG lug on the terminal, but not two....

 

[sunshine_eggo]

Something like that should guarantee the batteries don't share current equally.

Line #6 in my signature.

 

[henkew]

Thanks, that is what I was afraid of...