Recommendations for Battery Capacity


SMA Solar Technology AG recommends the following minimum battery capacities when using a Sunny Island, a Sunny Boy Smart Energy or a Sunny Tripower Smart Energy. The recommended battery capacities must be observed to ensure stable operation of the system.

Battery-backup system

Battery capacity for a ten-hour electric discharge (C10)

Single-phase battery-backup system with SI4.4M-12 / SI4.4M-13 (Sunny Island 4.4M)

100 Ah

Single-phase battery-backup system with SI6.0H-12 / SI6.0H-13 (Sunny Island 6.0H)

120 Ah

Single-phase battery-backup system with SI8.0H-12 / SI8.0H-13 (Sunny Island 8.0H)

160 Ah

Three-phase battery-backup system with three SI4.4M-12 / SI4.4M-13 (Sunny Island 4.4M)

300 Ah

Three-phase battery-backup system with three SI6.0H-12 / S16.0H-13 (Sunny Island 6.0H)

360 Ah

Three-phase battery-backup system with three SI8.0H-12 / SI8.0H-13 (Sunny Island 8.0H)

480 Ah

Single-phase battery-backup system with SBSE3.6-50 (Sunny Boy Smart Energy 3.6)

see Technical Information "Approved Batteries and Information on Battery Communication Connection"

Single-phase battery-backup system with SBSE4.0-50 (Sunny Boy Smart Energy 4.0)

Single-phase battery-backup system with SBSE5.0-50 (Sunny Boy Smart Energy 5.0)

Single-phase battery-backup system with SBSE6.0-50 (Sunny Boy Smart Energy 6.0)

Single-phase battery-backup system with SBSE8.0-50 (Sunny Boy Smart Energy 8.0)

Single-phase battery-backup system with SBSE9.9-50 (Sunny Boy Smart Energy 9.9)

Three-phase battery-backup system with SBSE3.6-50 (Sunny Boy Smart Energy 3.6)

Three-phase battery-backup system with SBSE4.0-50 (Sunny Boy Smart Energy 4.0)

Three-phase battery-backup system with SBSE5.0-50 (Sunny Boy Smart Energy 5.0)

Three-phase battery-backup system with SBSE6.0-50 (Sunny Boy Smart Energy 6.0)

Three-phase battery-backup system with SBSE8.0-50 (Sunny Boy Smart Energy 8.0)

Three-phase battery-backup system with SBSE9.9-50 (Sunny Boy Smart Energy 9.9)

Three-phase battery-backup system with STP5.0-3SE-40 (Sunny Tripower 5.0 Smart Energy)

Three-phase battery-backup system with STP6.0-3SE-40 (Sunny Tripower 6.0 Smart Energy)

Three-phase battery-backup system with STP8.0-3SE-40 (Sunny Tripower 8.0 Smart Energy)

Three-phase battery-backup system with STP10.0-3SE-40 (Sunny Tripower 10.0 Smart Energy)