SolarPairing / Works, closed loop
SMA Sunny Island SI 4.4M / SI 6.0H / SI 8.0H × Pylontech US2000 / US2000V2 / US3000 / US2000C / US3000C / US5000 / US5000-B / UP5000 / UF5000 / Phantom-S / Force-L1/L2 / Pelio-L / Fidus-L
Pylontech's low-voltage compatibility list identifies Sunny Island SI 4.4M, SI 6.0H and SI 8.0H with the listed 48 V ESS families using CAN communication. The compatibility document records this as an on- or off-grid application and notes that force-charge support is available. Confirm the exact Pylontech battery revision, master module, CAN cable, firmware and the required Sunny Island battery capacity before commissioning an islanded or backup system.
Status
Works, closed loop
Protocol
CAN
Last verified
2026-08-28
01 / About this pairing
Pylontech's low-voltage compatibility list identifies Sunny Island SI 4.4M, SI 6.0H and SI 8.0H with the listed 48 V ESS families using CAN communication. The compatibility document records this as an on- or off-grid application and notes that force-charge support is available. Confirm the exact Pylontech battery revision, master module, CAN cable, firmware and the required Sunny Island battery capacity before commissioning an islanded or backup system.
02 / Source
https://pylontech.com.br/wp-content/uploads/2025/10/Compatibility-List-of-Pylontech-and-Inverters-Ver.2.40.pdf