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Discussion Starter · #1 ·
I purchased a 2x 36S EHW5 welded modules that I would like to convert to 6x 12s EHW5 modules for use with LiBCM powered lithium conversions.

Converting EHW5 modules to 12S is not supported by @mudder nor is it recommended for safety reasons. Please do not attempt this on your own.

The key challenges will be:

* Safely and slowly cutting some of the busbars with a small hacksaw

* Building a compression housing that fits safely and securely in the IMA Bay

* Attaching tab welded terminals to the end of the batteries

* Splicing the BMS connectors to the BMS connectors that @mudder sells with the 18s to 12s conversion option

The benefit will be that will be able to use the EHW5 modules that I already have without mixing chemistry and cell types.
 

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Discussion Starter · #3 ·
Good news, I have joined the bodgery, a maker place here in Madison. There are already people there who are putting together batteries for e-bicycles. They have the equipment to spot weld batteries and will train me how to use the equipment before I'm even allowed to use it.

I still need to figure out the amount of compression to use and to come up with a secure casing that fits in the IMA Bay.
 
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