SMA
Technologie AG
Battery Management
Technical Description
SI5048-11:EE4206
Page 87
The estimated charge state error (display value "#120.11 BatSocErr") will provide you
with continuous information on the accuracy of the battery charge state currently
calculated. The average error will continuously diminish as the adjustment to the actual
battery increasingly improves.
Only when the battery is new does its usable capacity correspond to the capacity
specified by the battery manufacturer. As the battery ages and as a result of frequent
insufficient charging, the battery’s useable capacity may decrease considerably on a
permanent or only a temporary basis. The battery's state of health (display value
"#342.01 Soh") is a percentage measurement for the current useable capacity relative
to the nominal capacity. 100 % means that the entire nominal capacity can still be
utilized. At 50 %, only half of the original nominal battery capacity can be utilized. A
self-adapting method, which takes between 4 and 8 weeks to produce good and exact
values, is also used to calculate the battery’s state of health.
The current capacity for the Sunny Island 5048 is automatically adjusted downwards
for temperatures <20 °C, since the useful capacity of batteries is significantly reduced
in temperatures below the nominal temperature. For all lead acid batteries, the nominal
capacity is amended by a fixed factor of –1 %/°C. For NiCd batteries a factor of –
0.75 %/°C is used.
Summary of Contents for Sunny Island 5048
Page 22: ...The Sunny Island 5048 SMA Technologie AG Page 22 SI5048 11 EE4206 Technical Description...
Page 26: ...Safety Instructions SMA Technologie AG Page 26 SI5048 11 EE4206 Technical Description...
Page 94: ...Battery Management SMA Technologie AG Page 94 SI5048 11 EE4206 Technical Description...
Page 114: ...Connecting External Sources SMA Technologie AG Page 114 SI5048 11 EE4206 Technical Description...
Page 160: ...Contact SMA Technologie AG Page 160 SI5048 11 EE4206 Technical Description...
Page 169: ...SMA Technologie AG Glossary Technical Description SI5048 11 EE4206 Seite 169...
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