Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1976-09-21
1978-11-14
Hickey, Robert J.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 22, H02J 710
Patent
active
041258029
ABSTRACT:
Method and apparatus for charging storage batteries in which the charging rate is varied as a function of temperature are disclosed. The battery temperature and ambient temperature are sensed and compared. When the battery temperature is less than the ambient temperature plus a first temperature difference, a first charging rate is provided; when the battery temperature is greater than the ambient temperature plus the first temperature difference but less than the ambient temperature plus a second temperature difference which is greater than the first temperature difference, an intermediate charging rate is provided which varies with the comparison of the battery and ambient temperatures between the first charging rate and a second charging rate which is less than the first charging rate; and when the battery temperature is greater than the ambient temperature plus the second temperature difference, the second charging voltage is provided. Alternatively, charging may be cut-out instead of proceeding at the second charging rate. The method disclosed herein may advantageously be used to charge all types of storage batteries.
REFERENCES:
patent: 3599071 (1971-08-01), Lapuyade et al.
Hickey Robert J.
Saft-Societe des Accumulateurs Fixes et de Traction
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