So after the nice weather this week and riding my bike 3 times to work so far I take back the comment
about there being plenty of room for 12 6s 5000mah in this bag. Batteries fit fine , but throw in the harness
and it's a bit of a tight fit.. It works if you line it all up , but in a rush I even broke a zipper this morning (the pull part).
Wanted to correct myself.
Thanks for the update. That sucks that you broke the zipper.
You know what would help? rotate the 4 packs in the middle about 90 deg. This will make them bulge out of the bag a little, but shouldn't interfere with pedaling. This gives you more room up top where you have those 4 diagonal packs.
That's how i successfully jammed 12 into my falconEV bag recently.
Also, loosen the top of your bag straps a little. That is a stress point, and one other member had a tear there once. Those look a little stressed.
Also consider fully cycle testing all your lipos ( just for safety ), then when you weed out the duds ( if you haven't already ), solder them up in permanent series and/or parallel groups to cut your wiring down. This is easier to do if you are using multiples of 10S or 12S and have a 10S or 12S capable charger.
Before this bag, i made an ammo case mount and all the wiring of an 10S 20AH pack prevented me from closing the box, and i eventually ended up scrapping the project.
Ended up going perma-series since i had an iCharger 1010b+ to deal with the 10S groups. Soon, i will go perma-parallel for 2p ( 10AH ) groups. Cutting the wiring for 4 packs in 1/4th = pure win