SMA Solar Technology AG
11 Glossary
Operating Manual
SI80H-BE-BEN120810
67
Battery cycle
The battery cycle is the cumulative total discharge current over time, measured in ampere-hours. These
meters are not automatically reset after charging. The nominal battery cycle is the battery cycle
relative to the nominal capacity of the batteries.
Battery inverter
See Off-grid inverter
Battery management
Battery management is responsible for optimal battery charging and reliable protection against deep
discharge. This is the only way of ensuring that the battery service life corresponds to the
manufacturer's specifications.
Battery power converter
See Off-grid inverter
Battery protection mode
Battery protection mode protects the battery. If the battery falls below the limiting values for the state
of charge, the battery protection mode is activated. To protect the battery, the off-grid inverter switches
to standby mode or deactivates.
Battery system
Series connection and possibly also parallel connection of several identical batteries. Battery banks
of 12 V, 24 V, 48 V and 60 V are typical.
Boost charge
See Fast charge
Bulk phase
See Constant current phase
Capacity
Describes the storage capability of a cell or battery, specified in ampere-hours or watt hours. The
capacity of a battery is heavily dependent on the charging cycle, the electrical current strength drawn
and the temperature.
Charge mode
See Battery charge mode
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