Modular stackable batteries for cellular phones
US5783327A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 26, 1996 |
| Grant date | Jul 21, 1998 |
| Priority date | — |
| Expiry date | Nov 26, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M50/247
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.