Golf Cart BMS with Relay?

[bbbbrass]

Anyone use a BMS like this and have experience on the amp draw for a stock Club Car Precedent motor and controller?

300A continuous, 600A max.

 

[OffGridInTheCity]

If you use a BMS that toggles an external relay (Chargery is an example) you can get/toggle a high amp relay. Gigavac makes a huge variety of high amp / wide range of coil voltages. Just off the top - here's a 12v coil and 600A contactors - https://dc-components.com/product/gigavac-gx46cdb/

Here's a good youtube to illustrate the general idea

View: https://youtu.be/J2KH21Fwi9o

 

[bbbbrass]

Thanks! I'm used to that idea, but wondering if anyone has used the BMS with the relay built in. I'm thinking this would allow the BMS shunt to accurately track usage, and maybe have 1 less failure point.

 

[OffGridInTheCity]

Here's another hi-amp / relay BMS option that I just saw on youtube - a little beefier than Chargery. https://www.currentconnected.com/product-category/btry/btry-acc/bms/rec-bms/rec-q/

 

[bbbbrass]

Appreciate it. I’ve had good communication with Dexter @ CC before. Probably pricier than I’m going for, but looks solid.