My Lithium Conversion

Who is this and why have you hijacked @JarJarJava 's account!? No discussion of bulldozers, explosions etc with an early car??

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Thanks for your reply. Sorry should have been more specific, yes the batteries have life (very little, and very old) so I know it works, but they need to be replaced. It drove well and stopped well so assuming the trans is okay and brakes worked.
I’ve searched and have found builds but they mostly just had pics “I did a lithium conversion” and BAM pics of it done. I didn’t come across any tutorials or how to’s or step by steps which are very useful. But I’ll keep looking.

I love to build and fab things, know how to weld and work with electronics (built a solar generator battery with 18650 cells, robotics, cnc, plasma cutters etc) but I’m new to GEMs and Golf carts with bigger batteries etc. To answer your question, yes, I would like to buy the parts and build it myself but would like to follow in someone’s footsteps to make sure I do it correctly. What cells are best to use, Nissan Leaf, Samsung SDI, what BMS (does it need one) etc.?

If I missed a good lithium build write-up please let me know, as I’m sorry I’ve searched and didn’t see it.

If you want to build a 94ah SDI battery, I have a deal on cells.
20 will fit nicely in an early classic Gem.
These were sent untapped by mistake. As I don’t have time to do the work, selling for less than cost.
You should find plenty of support on forum. Sdi is one of the most widely used gem batteries.



Picture is 28 cell battery for my Tomberlin. Built from home store PVC trim boards.

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Awesome, do you recommend a certain BMS? Or will any 20s 100a one work(or what specs should I look for)? Do you feel any work better than others in your experience? Thanks for your help!

I do, I’ll pm you with Byron.

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