Title :
Can a battery ohmic tester distinguish a good cell from the pool of better ones?
Author :
Noworolski, Zbig ; Reskov, Peng Ulo
Author_Institution :
Polytronics Eng. Ltd., Toronto-Markham, Ont., Canada
Abstract :
The correlation data between ohmic measurements and normalized capacity of a battery, published by various authors, is compiled and statistically analyzed for correlation factors in 5 regions between 0 and 100%. Weak correlations have been observed for some normalized capacity regions. An attempt has been made to provide a theoretical explanation for these discrepancies based on conductivity of the acid and the effect of temperature. In conclusion, the adequacy of the method (of ohmic measurements) is discussed.
Keywords :
battery testers; lead acid batteries; statistical analysis; Pb; VLRA batteries; acid conductivity; battery ohmic tester; normalized battery capacity; ohmic measurements; temperature effect; Battery charge measurement; Conductivity; Costs; Electric resistance; Electrical resistance measurement; Impedance measurement; Instruments; Manufacturing; Statistical analysis; Testing;
Conference_Titel :
Telecommunications Energy Conference, 2002. INTELEC. 24th Annual International
Print_ISBN :
0-7803-7512-2
DOI :
10.1109/INTLEC.2002.1048660
