SMA SI 3.0-11 - Manual (Page 13)

SMA Solar Technology AG 2 Safety
Operating Manual SI30M-44M-60H-80H-BE-en-30 13
/05*$&
Damage to the battery due to incorrect settings
Incorrect settings lead to premature aging of the battery. Settings of the parameters in the menu 220# Battery
influence the charging behavior of the Sunny Island.
• Check whether initial battery charging with special settings is required.
If initial charging is required, adjust the charging behavior of the Sunny Island for one-off initial charging.
• Ensure that the values for the battery as recommended by the battery manufacturer are set in the menus
222# Chargemode and 223# Protection (for the technical data of the battery, see the documentation provided
by the battery manufacturer). Note that the charging behavior names used by SMA Solar Technology AG and
the battery manufacturer may, in some cases, differ in meaning (for the charging behavior of the Sunny Island
inverter, see technical information "Battery Management"). Tip: For questions relating to the settings of the
Sunny Island, please contact the SMA Service Line.
Permanent damage to the battery due to improper handling
Improper set-up and maintenance of the battery can cause it to become permanently damaged. Logs can help to
determine the cause.
• Comply with all requirements of the battery manufacturer with regard to mounting location.
• Check and log the status of the battery before performing maintenance work:
• Check the battery for visible damage and log.
• Measure and log the fill level and acid density of FLA batteries.
• In the case of lead-acid batteries, measure and log the voltages of the individual cells.
• Perform and log the test routines required by the battery manufacturer.
Tip: Many battery manufacturers provide suitable logs.
Prior damage to batteries
Batteries may already have suffered damage due to production defects. Logs can help to determine the cause.
• Check and log the status of the battery before performing maintenance work.
Performance impairment of batteries
Transition resistances can impair the performance of the batteries.
• Ensure that the torques at the battery connections are correct each time that maintenance is performed.