[PingEye3]

Originally Posted by Pat911

I use only “Chinese” BMS’s, not only for cart use but for all my lithium builds. I’ve built tiny two cell 2Ah packs (with $2.00 BMS’s) and large 42 cell 120Ah packs, always with “Chinese” BMS’s.

I’ve never had one fail, NEVER.

Now, I’m not saying that they don’t fail, any piece of electronics can fail, regardless of how expensive it is or where it was made.

When it comes to cart use, as long as you don’t try to pass motor current through the It, the Chinese BMS will be just as reliable as anything else you purchase, especially JBD, who are an OEM manufacturer for some name brand BMS’s.



I always like to over spec and that will help reduce failures. I use 60A - 100A on my cart builds. Using a larger BMS will also enable you to use a larger charger as the charge current is passed through the BMS. I charge my 21 module Leaf pack with a 35A charger. It has a 60A BMS on it. It will fully charge the pack (120Ah) from empty in around 3.5 hours.

Cheers
Pat.

Nice write up Pat.