Battery with a spare battery
First Claim
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1. A battery including a spare battery, comprising:
- a main battery comprising six cells connected in series, a capacity of a first three of said six cells being at least 10% than that of the remaining three cells of said main battery;
a spare battery comprising three cells connected in series; and
a switch connecting said spare battery in parallel only with said remaining three cells of said main battery.
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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.
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Citations
7 Claims
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1. A battery including a spare battery, comprising:
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a main battery comprising six cells connected in series, a capacity of a first three of said six cells being at least 10% than that of the remaining three cells of said main battery; a spare battery comprising three cells connected in series; and a switch connecting said spare battery in parallel only with said remaining three cells of said main battery. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification