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FOOLPROOF RECHARGEABLE BATTERY AND CHARGER

IP.com Disclosure Number: IPCOM000007628D
Original Publication Date: 1996-May-01
Included in the Prior Art Database: 2002-Apr-10
Document File: 2 page(s) / 90K

Publishing Venue

Motorola

Related People

Chan Hiang Boon: AUTHOR

Abstract

Rechargeable batteries are increasingly used in electronic products for economic and environmental reasons. Typically, rechargeable batteries are identi- cal to normal alkaline batteries in terms of physical shape and terminal contact layout. Hence, based on physical dimensions, rechargeable batteries are interchangeable with alkaline batteries for most applications.

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MOlVROLA Technical Developments

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FOOLPROOF RECHARGEABLE BATTERY AND CHARGER

by Chan Hiang Boon

  Rechargeable batteries are increasingly used in electronic products for economic and environmental reasons. Typically, rechargeable batteries are identi- cal to normal alkaline batteries in terms of physical shape and terminal contact layout. Hence, based on physical dimensions, rechargeable batteries are interchangeable with alkaline batteries for most applications.

  Charging rechargeable batteries conventionally requires a battery charger. However, a problem exists when a user inadvertently charges a non-rechargeable battery, thereby damaging the battery charger and posing dangers to the user as well. Therefore, a need exists for a method and apparatus to charge a rechargeable battery safely.

  Disclosed in Figure 1 is a rechargeable battery with its two terminal contacts .extended using two metal sleeves. The rechargeable battery has a non- conductive material to protect the body of the rechargeable battery and to hold the two metal sleeves in place. In addition, the non-conductive material exposes the metal sleeves as a positive contact and a negative contact for a battery charger to charge the

rechargeable battery.

  Shown in Figure 2 is the rechargeable battery in an electronic device that is coupled to a battery charger. The battery charger has a positive charging pin and a negative charging pin. With these two charging pins, the battery charger charges the rechargea...