Alpha Technologies Industrial Ni-Cd Batteries Standard Range - Manual (Page 13)

EN-ALPHA-TMSR-001 (10/09) 13
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4.4 Impact of Temperature on Cell Performance and Available Capacity
When sizing and choosing a battery the variations in ambient temperature and their infl uence on the cell
performance have to be taken into consideration. Low ambient temperature conditions reduce the cell
performance, but on the other hand operations with higher temperatures are similar to those at normal
temperatures. The effect of low temperatures is increasing with higher rates of discharge. The values, which have
to be taken into account, can be found in the following graph
:
4.0 Operating Features, continued
Graph 4-1 NiCd-cell performance variation with temperature