SolarPairing / Works, closed loop
SMA Sunny Island 4.4M / 6.0H / 8.0H / 4548-US / 6048-US × Discover Energy AES LiFePO4 42-48-3000 / 42-48-6650 / AES RACKMOUNT 48-48-5120 / 48-48-5120-H via LYNK II
Discover's SMA application note documents closed-loop communication through LYNK II between the named AES LiFePO4 or AES RACKMOUNT batteries and Sunny Island 4.4M, 6.0H, 8.0H, 4548-US or 6048-US. The note states that these Sunny Island systems cannot operate with the documented lithium batteries in a voltage-only open-loop configuration. Confirm inverter and LYNK II firmware, battery model and count, CAN termination and the current SMA commissioning procedure before installation.
Status
Works, closed loop
Protocol
CAN bus via LYNK II
Last verified
2026-10-04
01 / About this pairing
Discover's SMA application note documents closed-loop communication through LYNK II between the named AES LiFePO4 or AES RACKMOUNT batteries and Sunny Island 4.4M, 6.0H, 8.0H, 4548-US or 6048-US. The note states that these Sunny Island systems cannot operate with the documented lithium batteries in a voltage-only open-loop configuration. Confirm inverter and LYNK II firmware, battery model and count, CAN termination and the current SMA commissioning procedure before installation.
02 / Source
https://dev.discoverenergysys.com/s4x_files/resources/des-lynk-2-sma-manual.pdf