7s14P parallel BMS or Single ?

[marine7]

Hey guys,

I have 98 new cells 35 of them in same production year and showing 100mAh lower the the rest of other production year. 3350mAh and 3450mAh LG MJ1

I need to have them 7s7p on top of each other to safe space and get them into a waterproof box, I thought of making two separate packs and parallel the BMS cables and also parallel the separate charge cables and charge and discharge as a one pack, would that work?

Or would I be better of having one pack 7s14p and fold the back and connect the back cells with nickel strip with one BMS.
Main reason is I need to insulate the packs as as much as possible as they will be used in for strolling moto with ip67 case

Peak drew 15A most of the time it won't even go up 10A, Max18A

Thanks Heaps

 

[john61ct]

Since this and related questions have come up in multiple threads recently,

created a central one for that on specific issue

https://endless-sphere.com/forums/viewtopic.php?p=1561188#p1561188

To discuss your specific design, please respond here

leave that one for the "general science" question using that specific 1P6S example please