Cerbo GX means no shunt, right?

[Bluedog225]

I’ve got the lynx distributor and the Cerbo gx to go with my Quattro. There’s no reason to get a shunt, right?

I just come off the battery bank and attach to the main bars of the distributor, correct?

Trying to get this system operational by end of year.

Thanks

 

[Horsefly]

Having a Cerbo GX is certainly no reason not to have a shunt. In fact, if you have the Victron Smart Shunt, it can provide a better battery voltage reading and battery SoC to the Cerbo, which is pretty important. With the Smart Shunt reporting the battery voltage, the Cerbo can use DVCC (Distributed Voltage and Current Control) to manage the charging of the battery. Even if you don't use DVCC, just having an accurate battery SoC reported by the Cerbo is pretty handy.

 

[cdsolar]

If the BMS provides what you need to the Cerbo, then no you do not need a shunt. Check your battery manual and see if it can talk Victron Protocol. If not, then you still should have a shunt.

If your battery BMS can talk Victron Protocol, here is the cable for Cerbo to EG4 LLv2 BMS, your mileage may vary based on your battery:

Victron Can Bus Cable | VE. Can to CAN-bus BMS type A Cable 1.8m | EG4 LL to Cerbo GX Cable

Signature Solar provides solar panels, off-grid solar systems, grid-tie, and hybrid systems. Quality solar inverters, bifacial solar panels, complete solar kits, solar batteries. Featuring brands such as EG4 Electronics with their solar battery, LifePower4 and EG4 LLifePower4 and EG4 LL

signaturesolar.com

Check out this thread for what I did with a raspberry pi running Victron's OS, the same OS is on the Cerbo, using a custom cable:

EG4 LL BMS to Victron Cerbo

It is just a matter of time before one of those EG4-LL batteries would set someone's house on fire and they will find themselves out of business due to a class action lawsuit. See my post...

diysolarforum.com

 

[Bluedog225]

Thanks. I’ve got the SOK rack batteries. The originals from current connected. I thought I read that the shunt was unnecessary. I’ll find the paper work and double check.

Though it sounds like there is some nuance here.

 

[cdsolar]

Thanks. I’ve got the SOK rack batteries. The originals from current connected. I thought I read that the shunt was unnecessary. I’ll find the paper work and double check.

Though it sounds like there is some nuance here.

If these are the batteries you have, then it appears based on this manual, that they can talk Victron Protocol, but will need to be configured to do so.

SK48V100 Server Rack Battery Owner & Operator's Manual | Current Connected

Full instruction manual for the SOK SK48V100 server rack battery. Everything you need to know is contained within this document!

www.currentconnected.com

Current Connected support is awesome, I am sure they would be able to help.