Modular stackable batteries for cellular phones

Details Modular stackable batteries for cellular phones Modular stackable batteries for cellular phones

1996-11-26

1998-07-21

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Cell support for removable cell

Having switch or interlock means

429123, 439188, H01M 234

Patent

active

057833273

ABSTRACT:
A battery is provided for an electronic device that includes contacts on inside and outside surfaces of the battery enabling additional batteries to be stacked on the battery in use. With respect to a cellular phone, this arrangement enables an operator to add additional talk time without requiring the operator to terminate a call. The battery casing is shaped corresponding to the electronic device to maximize battery capacity while minimizing size. In one arrangement, the male terminals that are not in use are retracted within the battery casing, and a sensor assembly senses the attachment of an auxiliary battery and extends the male contacts outside of the battery casing. The configuration allows greater choice of battery capacity and also permits the addition of more batteries as one is depleted.

REFERENCES:
patent: 3701074 (1972-10-01), Oster
patent: 4943498 (1990-07-01), Cooper et al.
patent: 4965462 (1990-10-01), Crawford
patent: 5346786 (1994-09-01), Hodgetts
patent: 5374199 (1994-12-01), Chung
patent: 5578391 (1996-11-01), Meyers et al.

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