Making a 60V 300Amps Capable Battery - 16s10p Sony VTC6 18650 cells

This beauty is going to POWEEEEERR a super lightweight LMX161 electric motorcycle. This green brick is capable of 300Amps, I think it’s plenty of power for a sub 45kg dirtbike ohhhh yeeaahh

It’s very important to have a proper bus bar, especially on very wide packs like this one 180mm or 7” wide bus bar connection, making sure you spread the load between all cells in parallel. Cut and folded copper, tinned with solder inside (an easy job for the JBC soldering iron, a maybe impossible mission for most soldering irons), added nickel inside and sandwiched together!! Yummy!!

You see 4 blue wires soldered to the negative bus bar and 4 red wires soldered to the positive bus bar. Conveniently this BMS comes with 4 wires which is very nice and makes life much easier to spread along with the pack.
Note you MUST keep the 4 wires the same length otherwise it will cause a load imbalance as the current tendency is to run to the shortest path.
This is not a theoretical thing, this actually happens, it’s a real thing. I’ve conducted lots of controlled tests for companies when consulting battery design and demonstrated this happening with proper monitoring equipment.
If not considering this when making big (even small) battery packs you may be overloading some cells more than others causing an uneven wear/ageing some cells more than others which could lead to premature failures and warranty claims.
Ohhh yeaahhh more copper... more POWEEEEEERRR

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So much POWEEEEEEEEERRRR ohhh yeeeaaahhh!!!!

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