GNB Sonnenschein


Exide’s Sonnenschein Solar Block is a 6V deep-cycle VRLA gel battery. VRLA gel batteries are ubiquitous in stationary storage applications, and are the incumbent technology in the majority of RAPS systems.

The Sonnenschein brand is the market leader in RAPS applications and their parent company, Exide Technologies, has been in the battery business for over 120 years.

Battery Name Sonnenschein SB 6/330
Technology Class VRLA Gel
Nominal Voltage 6V
Rated Capacity (@ 100% DOD) 300 Ah (1.8 kWh) @ C100
Recommended DOD 60%
Weight (ex. racking) 48 kg
Size (ex. racking) 20.4 L


For the purposes of the trial, 8 x SB 6/330 cells have been connected in series, to allow for total capacity of 300Ah at a nominal voltage of 48 V. The bank is connected to an SMA Sunny Island inverter that will charge/discharge the battery.

Exide’s website can be accessed via the following link: