Need recommendation for AC coupled inverter for 48V batteries (Australia)

I currently have an 8kW SolarEdge PV system. I will be upgrading the house to 3-phase and adding another 10kW SolarEdge system on a separate phase. I'm leaving that to the SolarEdge guy, but I want to also AC couple some batteries.

I recently acquired 12 x new Samsung SDI 48V, 4.84 kWh (58kWh total) rack mount batteries. They are leftover stock from a German company called Senec who recently stopped trading here in Australia. They were the battery modules inside Senec's V3 all-in-one battery box with built-in inverter. I paid about 10% of what Senec were selling them for. I found a manual for them online which contains the CAN Bus protocol and I have been able to read the data with an Arduino/ESP32, so I should be able to translate it to another more common battery like Pylontech or whatever to communicate with an inverter.

I've never done this before, so I'm looking for recommendations for an Inverter that is likely to work with these batteries (assuming I can handle the communication). Or anything else you think I need to be aware of. I'm in Australia, so may not have the same brands/models as other countries, but if you can at least tell me what sort of inverter I'll need will be helpful.

Cheers!

Those are excellent batteries, if you change your mind you could always sell them to me

If I were you I’d contact Springers Solar in QLD. From a glance at the Samsung website they have a partnership with Sungrow for their hybrid systems. Springers sell Sungrow, and they are a switched on company - they will give you good advice.

Or sell the batteries to me.

Here's some you can buy...

NSW: https://www.grays.com/sale/5056799/...ed-samsung-elpm482-00005-rechargeable-battery
QLD: https://www.grays.com/sale/7051959/...ed-samsung-elpm482-00005-rechargeable-battery
VIC: https://www.grays.com/sale/3029428/...ung-elpm482-00005-rechargeable-li-ion-battery
WA: https://www.grays.com/sale/9051634/...-samsung-elpm482-00005-rechargeable-batteries

@Johnno3000 Have you opened one of these up to see the cell layout? I’m hoping to get hold of a dozen or so. My plan is to use a REC BMS on one of the units so it will communicate with my SMA. Hopefully not too much fiddling around to access the 14 cells for cell monitoring.

I have previously used Powerplus rack mount batteries as added capacity in a system monitored by the REC, but as these are LiNMC cells i can’t parallel it with my LiFePO4.

If the price is right it will motivate me to make it work

If anyone is interested i have a 48page PDF instruction and installation manual for these units.

toms said:

My plan is to use a REC BMS on one of the units so it will communicate with my SMA.

Click to expand...

The latest JK PB series BMA will talk SMA to a Sunny Island.


Currently at 90 days with no alarms and a happy SI5048, 55 of those days with 2 battery's with JK PB BMS's..