BATTERY CHARGER

• US 20090051312A1
• Filed: 08/23/2007
• Published: 02/26/2009
• Est. Priority Date: 08/23/2007
• Status: Abandoned Application

• Current Assignee: 6805477 Canada, Inc.
• Original Assignee: 6805477 Canada, Inc.
• Inventors: Evans, Barry, Seamans, Peter, Simon, Rodolphe J.
• Application Number:
  US11/844,051
• Publication Number:
  US 20090051312A1
• Time in Patent Office: Days
• US Class Current: 320/103
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 7/342 The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging with circuits for polarity protection H02J7/0034

Abstract

A battery charger for wirelessly providing additional operating time for a cell phone with a depleted battery. The battery charger has a charging unit incorporated into a case. The charging unit has an external port, a cell phone charging port, and a rechargeable battery. A cell phone with a depleted battery is placed inside the case and plugged into the cell phone charging port. The rechargeable battery of the charging unit recharges the cell phone battery, without requiring that either the battery charger or the cell phone be plugged into an external power source. An ON/OFF switch allows the user to enable/disable recharging. A status indicator light indicates the status of the battery charger. When the battery in the charging unit is depleted, the user plugs the charger into a standard external power source to recharge.

Claims

1. A device charger for charging a rechargeable battery incorporated into an electronic device, said device charger comprising:

a case having a case wall that defines a storage area, said storage area being adapted to receive said electronic device; and

a charging unit incorporated into said case wall, said charging unit having a charging unit battery that is rechargeable, a device-charging connector that projects from said case wall into said storage area, so as to couple with a charging connector on said electronic device, and an external charging connector for receiving a connector for coupling said charging unit battery to an external power source;

wherein said charging unit battery charges said rechargeable battery of said electronic device to provide additional operating time of said electronic device, without having to connect said electronic device into a corded charging device.

2. The device charger of claim 1, wherein said charging unit battery is replaceable.

3. The device charger of claim 1, said charging unit further comprising charging circuitry for charging said rechargeable battery of said electronic device.

4. The device charger of claim 1, said charging unit further comprising a status indicator light.