Title :
Abusive discharges to zero volt of VRLA/AGM monoblocs in 24 V strings
Author :
Giess, H. ; Hughes, B.
Author_Institution :
Accumulatoren-Fabrik Oerlikon, Zurich, Switzerland
Abstract :
Lead acid batteries may experience an abusive “deep”discharge condition when more than 100% of the nominal capacity is withdrawn. This paper describes the behavior of a VRLA/AGM battery under such discharge conditions by examining temperature and voltage parameters. As results show, certain designs of VRLA/AGM batteries exhibit a good tolerance against such abusive conditions. A discharge for a period of 130 h below 1.80 Vpc did not induce, after recharge at the float voltage of 2.25 Vpc, any capacity loss in such a battery
Keywords :
lead; secondary cells; 130 h; 2.25 V; 24 V; Pb; Pb-acid battery; Pb-acid valve regulated battery; VRLA/AGM monoblocs; absorbent glass mat; abusive discharges; battery recharge; float voltage; lead acid batteries; temperature parameters; voltage parameters; Australia; Batteries; Calcium; Degradation; Lead compounds; Manufacturing processes; Passivation; Temperature; Tin alloys; Voltage;
Conference_Titel :
Telecommunications Energy Conference, 1997. INTELEC 97., 19th International
Conference_Location :
Melbourne, Vic.
Print_ISBN :
0-7803-3996-7
DOI :
10.1109/INTLEC.1997.645904
