December 2012
Beginner
528 pages
17h 31m
English
Content preview from Introduction to Electrical Power and Power Electronics
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297Electrochemical Battery
Therefore, the battery charger should have a regulator that detects full charge and
cuts back the charge rate to trickle rate after the battery is fully charged.
11.3.5 MeMory effeCt in niCd
The NiCd battery remembers its c/d pattern and changes the performance accordingly.
After it is repeatedly charged and discharged to, say, 25% of its full capacity to point M
in Figure 11.6, it remembers point M. Subsequently, if it is discharged beyond point M,
the cell voltage drops much below its original normal value shown by the dotted line,
resulting in a loss of full capacity. This phenomenon is like losing our body musc ...
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