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2 x 50kW Sunsynk Hybrid Inverters Wired in Parallel into 120 kWh Battery array

Updated: Jul 6, 2023

As promised this is the first video showing two Sunsynk 50 kW Hybrid inverters working together in parallel with a 120 kWh battery array a double-headed monster


  1. The batteries can't have a common Buzzbar, they are wired separately with one inverter one battery

  2. Each Inverter has two battery ports 50 Amp Each (they can parallel on the same inverter )

  3. Use the BMS 1 Port on the inverter

  4. Ensure good BMS Comms

  5. Take great care with HV Batteries always use rubber gloves.

  6. Software Version MCU 3102 F051

  7. Currently Max in parallel 5

More to come next week



7,464 views9 comments

9 Kommentare


Unknown member
26. Nov. 2023

Hi Keith, I have three 60kWh SunSynk batteries on one inverter. Parallel bat 1&2 is selected. Batteries go to a common external busbar and then we take the inputs to the inverter for bat 1 and 2 from the busbar. The inverter trips out with F20 - Tz_Dc_OverCurr_Fault when we get to 50A. How do I set the max discharge to 100A?


Thanks (Hannes - Max Yield Energy - South Africa)


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Unknown member
26. Nov. 2023
Antwort an

PS battery comms are good we get the expected 300A Max current discharge value from the BMS

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Akpan Okono
Akpan Okono
04. Apr. 2023

Hello Keith,

is it possible to update the inverter to work(read and display parameters) with Foxx Ess batteries automatically.

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David Em
David Em
04. Apr. 2023

Hi

Habe volgendes Problem mein Wechselrichter von Sunsynk 12 kW schlägt Alarm beim einschalten mit der Fehlermeldung f56. önnen Sie mir da weiter helfen?

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What is the limitation? is it a function of the underlying cell count & the protocol for parallel operation? i.e. 12 packs of 16 batteries = 192 cells per rack. 2 racks is 384 cells - is that too much for the protocol (when paralleling) to pass between units? Its not specified on the datasheets - is it safe to assume battery voltage is 160-800v? Could you do 7 batteries in each rack? 16cells x 7 batteries in parallel = 112cells per rack (with approx 364v) 2 racks would be 224 & under the 2^8 limit? Could you also parallel & put the inverter into AGM/Lead acid mode for the batteries? Careful with the peak currents - if you lose a pack its 2x the curren…

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Marius collins
Marius collins
17. März 2023

Yes we to at Clearsky PV have the original manual showing a common bus

We purchased 2 x 50 kW units and a SMD stack in December from Herholts now no one

Seems to care.

..comment below call me 0834634083....someone needs to held accountable for releasing this with false information?


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Antwort an

Is there an update yet?

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