Installing Batteries - SMA Sunny Island 2012 Technical Description

SMA Solar Technology AG

5.4 Installing Batteries

Information
Observe the battery manufacturer's installation instructions, as provided with the battery
upon delivery, and the applicable standards and directives for installation of batteries
(EN 50272-2).
DANGER!
Death hazard due to
1. Explosion and fire
2. short circuit
3. Chemical burns due to leaking electrolytes
1. Smoking prohibited!
Do not allow open flames, embers, or sparks near the battery.
2. The metal parts of the battery carry voltages.
Do not place foreign objects or tools on the batteries!
Work on the battery with insulated tools exclusively!
3. Use protective clothing and eyewear when working on the battery.
4. During normal operation, it is not possible to accidentally touch the electrolyte.
Do not damage the enclosure of the battery! The electrolyte is extremely corrosive.
Dimensioning for the Battery Capacity
To ensure a faultless operation of the island grid system, the SMA Solar Technology AG
recommends a battery capacity of at least:
• 175 Ah per Sunny Island 2224 (24 V) at C
• 350 Ah per Sunny Island 2012 (12 V) at C
If an AC-coupled PV plant is to be connected to the system, the SMA Solar Technology
AG recommends a battery capacity of at least:
• 200 Ah (C
of 24 V systems.
• 400 Ah (C
of 12 V systems.
Technical Description
) per kW of AC nominal power of the Sunny Boy inverter in the case
10
) per kW of AC nominal power of the Sunny Boy inverter in the case
10
10
10
SI2012_2224-TEN082311
Installation
33