A modular 18650 system for ebikes, each module with its own BMS

Elmo

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Joined
Feb 19, 2017
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189
http://www.ebikes.ca/product-info/ligo-batteries.html


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Grin's modular LiGo battery was born in response to the massive transportation restrictions placed on large lithium ebike packs. Properly certified batteries under 100 watt-hours are largely exempted from the dangerous goods shipping restrictions and are even allowed aboard passenger aircraft with your carry-on luggage. Why not use this as the building block that can be easily re-assembled into a large battery?

After much design consideration we decided to implement this as a flat 10s x1p 18650 cell layout, with every battery having its own independent BMS circuit and each pack being potted to protect against the elements.
 
I was actually kind of thinking of designing something similar for my packs. I wanted the ability to basically monitor each cell's performance of charge, discharge, amp, ir, any what ever else I could though into the mix. Maximum data retrieval :)
 
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