Alpha Technologies Industrial Ni-Cd Batteries Standard Range - Manual (Page 21)

EN-ALPHA-TMSR-001 (10/09) 21
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6.2 Charge acceptance, continued
6.3 Charge effi ciency
The charge effi ciency depends mostly on the state of charge of the battery and the ambient temperature as well
as the charging current. For much of its charge profi le the Ni-Cd battery is charged at a high level of effi ciency.
But if the battery approaches a fully charged condition the charging effi ciency decreases.
6.0 Charging
Graph 6-3, Time to reach state of charge at charging voltages for fully discharged cells
(H-Range: current limit 0.2 C
5
A)