Dala mentioned: I now have a loaner BYD battery which i will start off reverse engineering! Online video series is offered here:
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I may affirm that When your HV battery ( or bms ) can do this protocol picked as "Lithium battery HV" with the Solis app battery configurations you should have entire CAN battery communications. You'll find naturally plug and Perform options, such as Pylontech H1 or BYD HVL that satisfy UL9540.
e.: 0x42100), where by the suffix is definitely the products handle, quite possibly to vary in between multiple BMS in parallel. The thing is, accomplishing this wasn't Doing the job at all. How I received my details to seem over the inverter display was to disregard the suffix and build my CAN messages with only the 1st four digits (i.e.: 0x4210). It's this kind of a straightforward alter that took me times to determine.
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Residence This innovative application enables EV battery packs for being quickly reused for stationary storage together with photo voltaic inverters - dalathegreat/Battery-Emulator
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Dala's 'battery-emulator' will be able to pretend remaining a supported battery. The Solis is on his record so It appears not less than a person man or woman has gotten it Performing for it being about the validated listing.
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I _thought_ (nevertheless I could possibly be Improper) which the HV Solis inverters use some proprietary comms While using the byd stock battery BMS meaning that building a Do it yourself battery method for them is possibly challenging or not possible.
I did my very best to make the alarm flags based upon the alarm table provided by the CAN specs doc and, from analysing the Reside CANBUS, all alarm flags the BMS is sending are off. There should become a misalignment in a few CAN frames, or it might be an interior alarm flag lifted through the inverter internally. In any case, it isn't going to appear to be messing With all the Procedure with the inverter so far.
I suppose the Deye has a similar configuration. Or maybe the thread in my signature or this thread the place it can be reviewed:
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I'd personally count on that other BYD types would use the exact same essential messages but I don't have any evidence to help that.