What are some of the key differences considering communication between a pre-built battery such as a Hubble and dyi battery setup with a inverter such as sunsynk/Kodak or similar?

Wondering if the savings in DYI is worth forgoing the communication with the inverter 

Edited January 7, 20232 yr by sunset1
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The Comms of the DIY packs also works with the Inverters. the JK BMS & the JBD BMS both have RS485 & CANbus Comms. Therefore these Comms can be used to communicate to the inverters because the inverters support both types of Communication. 

However, this is not a straight forward connect & go but with more exposure to these systems making it's way onto this forum & ppl actually realising that the value of a DIY pack in terms of value for money is unbeatable. It's only a matter of time before a road map is drawn up for each inverter type. 

There is a lot more to come in this conversation & many ppl that can solve the Communication gap. 

That's great. 

Roughly speaking. Would establishing communication between diy packs and inverter be more than a days work?

 

I've heard some of the bms offer blue tooth to phone which seems great.

however Would communications directly to inverter be better? 

Edited January 8, 20232 yr by sunset1

Yes it would be better because the BMS from the battery will be directing the charge & discharge parameters & this is always a better thing than the other way round. Also very necessary is the Battery SoC that the inverter has no clue about. This type of work depends again on the BMS & inverter pairing. Most ppl are using Pylontech Protocol in the Deye/ Sunsynk for this because Pylontechs Protocol is widely used & available. It's sort of like why reinvent the wheel. In the Kodak most are using Lib protocol. 

It's about matching what language the BMS has & matching this to the Lib or Pylontech inverter understood language. A competent engineer can get this done in a matter of days. The tricky part is having equipment available to carry this testing & proving. One cannot buy all the inverter types. Hence, I have developed what I have had access to. 

So one relies on the forum community that have these skills to make this magic happen. Most are not doing this full time & have jobs in the real world outside of the solar industry. You can see why it takes long because the stars need to align. 

Thanks for the info. 

I would like to go this route as to save on money. 

I am looking at upgrading 12v to 24v EVE cells from altergrid.com

I will also need to upgrade my inverter. What are your thoughts on best/easiest bms and inverter to work together. I was looking at Kodak as they seem more affordable than deye/sunsynk. Although I hear sunsynk are great. 

 

Thanks again 

All depends on how much baby sitting you want to do. The Sunsynk & Deye require little to no bay sitting. The Kodak will require more attention. I also would suggest 48V & not 24v for a whole host of reasons. 

As little as possible babysitting. Already have a 3.month old with colic. 

Can understand 48v but that will mean doubling costs of battery. 

Perhaps it's worth it and sacrifice some panels. 

Would the bms's you mentioned be a good one?