Battery with a spare battery

Details Battery with a spare battery Battery with a spare battery

1990-12-24

1992-10-13

Bell, Mark L.

Chemistry: electrical current producing apparatus, product, and

Having diverse cells or diverse removable cells in a support...

429149, 429158, H01M 1004

Patent

active

051549859

ABSTRACT:
A battery including a spare battery is provided in which the six cells conventionally used for the spare battery are decreased to three cells, thereby allowing the capacity of the main battery to be increased. No charger for the spare battery is required. The main battery comprises six cells connected in series, the first of the six cells having a capacity at least 10% higher than that the remaining three cells. A switch is used to connect the spare battery in parallel with the remaining three cells of the main battery.

REFERENCES:
patent: 3200014 (1965-08-01), Roberts
patent: 3758345 (1973-09-01), Toth
patent: 4559456 (1985-12-01), Yamamoto et al.
patent: 4684580 (1987-08-01), Cramer
patent: 4818928 (1989-04-01), Schosser
patent: 4883728 (1989-11-01), Witehira
patent: 5002840 (1991-03-01), Klebnow et al.
Copy of the original and English translation thereof of German Patent Office Communication dated Feb. 20, 1992.

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