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Not to mention their wrongly usage of units. There is no such thing as a Kwh. Heck even on the Deye display it is wrong. (KW).

You should rebuild the battery, and use Orion. Orion has a fully programmable CAN, and it does balance the pack. It is (one of) the best BMS you can buy for HV systems. And it can talk to Deye / Sol-Ark / Sunsynk and perhaps Megarevo. I use an OrionBMS2 for a 96S Lithium configuration (Tesla...

I got this from Deye support / Service upon repeatedly request.

Correct. V-mode is a bit limited due to the voltage losses over the cable. If the BMS communicates it tells the correct voltage off the pack, and thus it enables potentially more capacity. This works at the moment, but i need to iron out some wrinkles. In Lithium mode the Orion tells the Deye...

Here you go... I got this from Deye. Let me know if you find something useful. What i need / want to know is: Comms: Little Endian or Big Endian? How does the Deye recognize an approved battery. How to emulate an approved battery. I use an OrionBMS2 which has a fully programmable CAN system...

Thanks for posting. This is indeed the protocol from Deye / Sol-Ark, but only for the LV inverters. The HV series uses a different set of Id's

The Id-set in the Victron / Pylon dataset is for LV batteries. The HV batteries are using a complete other Id dataset.

I've seen this. Problem is that the default profile in the Orion is for LV batteries. HV has a complete other Id-set. I am currenly working with Ewert to get this clear.

True, but comms adds an extra layer of security, and also the ability to read the battery data from the inverter for use in other devices like eGauge, SA, of HA. I use the Voltage mode to at the moment, but i really want the comms up and running. I am currently very busy getting this done. (Deye...

It is. Sure as hell.

EDIT / UPDATE: As per May-29, i managed to get this working. Thanks for everyone who looked into this. I am building an hybrid off-grid system with a Deye (Sol-Ark / Sunsink) and a Tesla model 3 battery connected with an OrionBMS2. The system runs. Like a baby. But i can't get the OrionBMS2...

My Deye inverter does 400VDC input, and 400VAC output. (3 phase, EU). ;-) Having that said, it does also output 150 - 700VDC @MAX 20kW for a battery.

Hi, I was stumbling on you post using an eGauge communicating with the Sol-Ark. I have a Deye and eGauge, and lokking for a way to communicate using a modbusRTU to modbusTCP converter. I am puzzaled how to configure. Would you care to send me your eGauge address, so i can look into your...

I am currently working on a LR model 3 pack. You need to know a few things: The entire LR pack has 4 modules total (2 x 25S + 2 x 23S) summed up 46P96S (96 bricks), with a nice capacity of 78kWh. BMS: for 96S you can use OrionBMS, or Batrium. The Tesla BMS on the modules is useless. (Model S...