Shoto SDA10-48/100 is the CANbus comms compatible with Sunsynk

[Kalahari Meerkat]

Does anyone use a Sunsynk 5kW or 8kW with the Shoto SDA10-48/100 battery and do these items communicate properly with each other?

[Solarcrazy]

Hello, I have 2 shoto batteries however I do not have the battery to battery comms cable as the one that comes in the box is too short. 

So for now the comms is not great. Do you know where I can get this comms cable from?

[GTP]

I have a Deye and Shoto, they communicate via the CAN. Works well. Software between Deye and Sunsynk i think is different though

[ItherNiT]

I can get my 2 x Shoto's to communicate with each other with pins 1 and 2. But then the CAN coms don't work properly (the batteries and inverter eventually get out of sync). 

So for now I'm just leaving my coms on pins 1 and 5 (as per my manual). 

 

My biggest regret on my solar journey is not going with hubble

[Solarcrazy]

Mine as well.. Or should have gone with Pylontech 

[Solarcrazy]

1 hour ago, ItherNiT said:

I can get my 2 x Shoto's to communicate with each other with pins 1 and 2. But then the CAN coms don't work properly (the batteries and inverter eventually get out of sync). 

So for now I'm just leaving my coms on pins 1 and 5 (as per my manual). 

 

My biggest regret on my solar journey is not going with hubble

Quick question.. How do you knw if both battries are talking correctly with the inverter and charging and discharging at the same rate? You don't want one to be discharging or charging faster than the other as this puts more strain on one of them 

[ItherNiT]

On 2022/05/22 at 1:07 PM, Solarcrazy said:

Quick question.. How do you knw if both battries are talking correctly with the inverter and charging and discharging at the same rate? You don't want one to be discharging or charging faster than the other as this puts more strain on one of them 

 

I used solar assistant (and another program) to check the batteries and inverter. 
Eventually the batteries would be at around 40-45% each, but the inverter is saying that on 50%.

If I swap the pins back to 5 (master) and 1 for slave, the inverter updates to that 45%.

[Solarcrazy]

6 minutes ago, ItherNiT said:

 

I used solar assistant (and another program) to check the batteries and inverter. 
Eventually the batteries would be at around 40-45% each, but the inverter is saying that on 50%.

If I swap the pins back to 5 (master) and 1 for slave, the inverter updates to that 45%.

Another program?? 

[ItherNiT]

 

35 minutes ago, Solarcrazy said:

Another program?? 

Had to go look in download folder, the programs name is battery monitor. 

[Kalahari Meerkat]

Thanks for all the feedback, guys, I ended up plunging for a 8k2Wh BSL instead... seems to communicate ok via CANbus, now to see whether there is a way to talk to the battery via either RS232 or RS485 to get more detailed data like @ItherNiT's battery monitor above...

Next query does anyone know the pin-outs of the connectors on the BSL batteries for the RS232 and/or the RS485 ports?

 

[Solarcrazy]

Good choice.. Only issue if you need more battery then you have to buy in denominators or 8.2kw .. 

[Kalahari Meerkat]

On 2022/05/28 at 1:23 PM, Solarcrazy said:

denominators or 8.2kw

Yup, I think that's most likely the best route, although some may say the 5k12 or 6k4Wh BSL may also co-exist, but I wouldn't go that route... as it is, for now, we survive the non-sunshine period without relying on the extension lead to the neighbour, so one more battery would probably sort us out fairly well... only thing worrying me, for now is the jump up in state of charge without huge power at similar time being squirted up the battery's terminals... considering we are pretty close to the shortest day/longest night, I am fairly chuffed with this state of affairs...

[Armand Theron]

On 2022/05/25 at 8:45 PM, ItherNiT said:

 

Had to go look in download folder, the programs name is battery monitor. 

Where can one obtain this software from, and can you connect this to the battery via the Lan cables, I'm looking for something where I can obtain the cycles that is left in my batteries