Battery charger

• US 7,816,886 B2
• Filed: 03/08/2006
• Issued: 10/19/2010
• Est. Priority Date: 03/08/2006
• Status: Active Grant

• Current Assignee: Energizer Brands, LLC (Energizer Holdings, Inc.)
• Original Assignee: Eveready Battery Company Incorporated (Energizer Holdings, Inc.)
• Inventors: Barr, Jason M., Iswarienko, Mandy, Devereaux, Rachel P., Furth, David A., Hoffman, Peter F., Brandon, Michael J. II
• Primary Examiner(s): Vu; Bao Q
• Assistant Examiner(s): Tran; Nguyen
• Application Number:
  US11/370,595
• Publication Number:
  US 20070210747A1
• Time in Patent Office: 1,686 Days
• Field of Search: 320/107, 320/110, 320/113, 320/115, 320/106, 320/114, 429/96, 429/99, 429/100, 429/175, 429/177
• US Class Current: 320/110
• CPC Class Codes: H02J 7/00047 with provisions for charging different types of batteries
• CPC Class Codes: H02J 7/0013 acting upon several batteries simultaneously or sequentially H02J7/1423 takes precedence
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction

Abstract

A battery charger (100) includes a base (102) which selectively receives first (104a) and second (104b) battery pods. The battery pods (104a, 104b), which are adapted to receive one or more batteries (212) for charging, have a form factor which facilitates the handling of the pods (104) and the batteries (212) received therein. Charging energy may be allocated between the pods (104) as a function of the temporal sequence in which the pods (104) are received by the base (102). Charging energy may also be allocated among the batteries (212) so that the batteries (212) are substantially charged at about the same time.

Claims

1. A battery charger comprising:

a first battery pod for holding batteries for transport and charging, said first battery pod comprising;

a first body configured to be transported by a consumer and received by a charging bay;

a first battery receiving region defined within the body and configured to receive a first plurality of batteries including at least one of AAA, AA, C and D sized batteries; and

a first cover attached to the first body and moveable to an open position and a closed position, wherein the first plurality of batteries may be removed from the first battery pod with the cover in the open position and installed in an external device for powering of the external device; and

a first charging bay to receive the first battery pod and to provide first charging energy to the first battery pod to charge the first plurality of batteries.

2. The battery charger of claim 1 including:

a second battery pod for holding batteries for transport and charging, said second battery pod comprising;

a second body configured to be transported by a consumer and received by a charging bay;

a second battery receiving region and configured to receive a second plurality of batteries including at least one of AAA, AA, C and D sized batteries; and

a second cover attached to the second body and moveable to an open position for insertion and removal and a closed position, wherein the second plurality of batteries may be removed from the second battery pod with the cover in the open position and installed in an external device for powering of the external device; and

a second charging bay to receive the second battery pod and to provide second charging energy to the second battery pod to charge the second plurality of batteries.

3. The battery charger of claim 2 wherein the first and second charging bays are adapted to receive either of the first and second battery pods.

4. The battery charger of claim 3 electrical charging energy is supplied to the first and second charging bays on a first in first out basis.

5. The battery charger of claim 2 wherein the first charging energy provided to the first battery pod and the second charging energy provided to the second battery pod are based on batteries received in the first and second battery pods.

6. The battery charger of claim 1 wherein the battery charger includes a first charging channel and a second charging channel.

7. The battery charger of claim 6 wherein a first charging rate of the first charging channel is selected as a function of an energy storage capacity of a first battery and a second charging rate of the second charging channel is selected as a function of an energy storage capacity of a second battery.

8. The battery charger of claim 6 wherein a first charging rate of the first charging channel is selected as a function of a charge state of a first battery.

9. The battery charger of claim 1 wherein the first pod includes a charging status indictor.

10. The battery charger of claim 9 wherein the charging status indicator is in optical communication with a light pipe, and wherein the light pipe is adapted to receive an optical signal from a light source external to the pod.

11. The battery charger of claim 1 wherein the first battery pod includes a first major surface and wherein the first major surface is substantially visible while a plurality of batteries are being charged.

12. The battery charger of claim 1, further comprising a first charging channel and a second charging channel.

13. The battery charger of claim 2, wherein the first battery pod includes a first battery and a second battery in the battery receiving region and the first charging channel is connected to the first battery and the second charging channel is connected to the second battery.

14. The battery charger of claim 1, wherein the first cover includes vents.

15. The battery charger of claim 1, wherein the first body includes a latch portion and the first cover includes a tab portion that corresponds to the latch portion.

16. The battery charger of claim 15, wherein the latch portion and the tab portion hold the first cover to the first body in the closed position.

17. The battery charger of claim 1, wherein the first body includes first contacts that correspond to a first charging channel and second contacts that correspond to a second charging channel.

18. The battery charger of claim 17, further comprising a first battery coupled to the first charging channel and a second battery coupled to the second charging channel.

19. The battery charger of claim 18, wherein the first battery is AAA size and the second battery is AA size.

20. The battery charger of claim 2, wherein the first charging energy is greater than the second charging energy.

21. The battery charger of claim 2, further comprising a first charging channel and bay select circuitry that selectively applies the first charging channel to only one of the first and second charging bays.

22. A battery charger comprising:

a first battery holder for holding batteries for transport and charging, said first battery holder comprising;

a first body configured to be transported by a consumer and received in a charging bay;

a first battery receiving region defined within the body and configured to receive a first plurality of batteries including at least one of AAA, AA, C and D sized batteries; and

a first cover attached to the first body and moveable to an open position and a closed position, wherein the first plurality of batteries may be removed from the first battery pod with the cover in the open position and installed in an external device for powering of the external device; and

a first charging bay to receive the first battery pod and to provide first charging energy to the first battery pod to charge the first plurality of batteries.