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A portable power driven system has a manually movable frame. In one example, an internal combustion engine and a generator device that generates AC power are supported on the frame. The internal combustion engine drives the generator device. An electrically powered starting device is coupled to the

A portable power driven system has a manually movable frame. In one example, an internal combustion engine and a generator device that generates AC power are supported on the frame. The internal combustion engine drives the generator device. An electrically powered starting device is coupled to the internal combustion engine. A control panel is coupled to the frame and includes at least one AC outlet and a battery receptacle that is electrically coupled to the starting device. The battery receptacle is materially the same as a foot of a cordless power tool that receives a battery pack. According to one aspect, the battery pack for the cordless power tool may be permanently mounted in the battery receptacle and provides electrical power to the starting device. The battery receptacle may be contained in an enclosure. The enclosure may provide biasing members urging the battery pack into the battery receptacle.

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What is claimed is: 1. A portable electrical generator system, comprising: a manually movable frame supporting an internal combustion engine that drives a generator device supported on the frame that generates AC power, the internal combustion engine coupled to the generator device; a starting devi

What is claimed is: 1. A portable electrical generator system, comprising: a manually movable frame supporting an internal combustion engine that drives a generator device supported on the frame that generates AC power, the internal combustion engine coupled to the generator device; a starting device coupled to the internal combustion engine; a control panel coupled to the frame having at least one AC outlet coupled to the generator device; an enclosure supported by the frame having a battery receptacle therein electrically coupled to the starting device, the battery receptacle configured to receive a cordless power tool battery pack, the battery pack received in the battery receptacle and providing electrical power to the starting device; and a charging circuit electrically coupled between the battery pack received in the receptacle and the generator device when the internal combustion engine is running to charge the battery pack and electrically decoupled from the battery pack when the internal combustion is being started. 2. The system of claim 1, further including a switch moveable from a first position electrically coupling the battery pack to the charging circuit and a second position electrically decoupling the battery pack from the charging circuit. 3. The system of claim 2 wherein the switch, when in its first position, electrically decouples the battery pack from the starting device and when in its second position, electrically couples the battery pack to the starting device. 4. The system of claim 1 wherein the enclosure includes a hinged lid and a base portion, the base portion having the battery receptacle. 5. The system of claim 4 wherein the base portion further includes a charger configured to receive the battery pack from the cordless power tool. 6. The system of claim 5 wherein the base portion includes an AC outlet electrically coupled to the generator device, the charger a stand alone charger that is mounted in the base portion of the enclosure and plugged into the AC outlet of the base portion. 7. The system of claim 1 wherein the battery receptacle is configured to receive a tower type battery pack. 8. The system of claim 1 wherein the battery receptacle is configured to receive a rail type battery pack. 9. The system of claim 1 wherein the battery receptacle receives a battery pack that is one of a plurality of battery packs having different voltages, the system including a voltage regulation circuit coupling the battery receptacle to the starting device, the voltage regulation circuit providing at an output coupled to the starting device a voltage at a desired level for the starting device regardless of the voltage of the battery pack received in the battery receptacle. 10. The system of claim 1 wherein the enclosure includes a hinged lid moveable between an open position and a closed position, the lid having at least one biasing member that, when the lid is in the closed position, contacts the battery pack to urge the battery pack into the battery receptacle. 11. A portable electrical generator system, comprising: a manually movable frame supporting an internal combustion engine that drives a generator device supported on the frame that generates AC power, the internal combustion engine coupled to the generator device; a starting device coupled to the internal combustion engine; a control panel coupled to the frame having at least one AC outlet coupled to the generator device; and a cordless power tool battery pack secured to the generator system by at least one fastening device, the battery pack providing electrical power to the starting device. 12. The system of claim 11 wherein the battery receptacle receives a battery pack that is one of a plurality of battery packs having different voltages, the system including a voltage regulation circuit coupling the battery receptacle to the starting device, the voltage regulation circuit providing at an output coupled to the starting device a voltage at a desired level for the starting device regardless of the voltage of the battery pack received in the battery receptacle. 13. A portable electrical generator system, comprising: a manually movable frame supporting an internal combustion engine that drives a generator device supported on the frame that generates AC power, the internal combustion engine coupled to the generator device; a starting device coupled to the internal combustion engine; a control panel coupled to the frame having at least one AC outlet coupled to the generator device; and an enclosure supported by the frame having a battery receptacle therein electrically coupled to the starting device, the battery receptacle configured to receive a cordless power tool battery pack, the battery pack providing electrical power to the starting device when the battery pack is received in the battery receptacle, the enclosure including a hinged lid moveable between an open position and a closed position, the lid having at least one biasing member that, when the lid is in the closed position, contacts the battery pack to urge the battery pack into the battery receptacle. 14. The system of claim 13 wherein the at least one biasing member includes a leaf spring. 15. The system of claim 13 wherein the at least one biasing member includes a plurality of leaf springs. 16. The system of claim 13 wherein the battery receptacle receives a battery pack that is one of a plurality of battery packs having different voltages, the system including a voltage regulation circuit coupling the battery receptacle to the starting device, the voltage regulation circuit providing at an output coupled to the starting device a voltage at a desired level for the starting device regardless of the voltage of the battery pack received in the battery receptacle. 17. A portable electrical generator system, comprising: a manually movable frame supporting an internal combustion engine that drives a generator device supported on the frame that generates AC power, the internal combustion engine coupled to the generator device; a starting device coupled to the internal combustion engine; a control panel coupled to the frame having at least one AC outlet coupled to the generator device; and an enclosure supported by the frame having a battery receptacle therein electrically coupled to the starting device, the battery receptacle configured to receive a first cordless power tool battery pack having an insertion portion having a footprint or an adapter having an insertion portion having a footprint that is the same as the footprint of the first cordless tool battery pack, the adapter having a battery receptacle portion configured to receive a second cordless power tool battery pack having a different footprint than the first cordless power tool battery pack. 18. The system of claim 17, further comprising a plurality of adapters, the adapters having insertion portions having footprints that are the same as the footprint of the first cordless tool battery pack and battery receptacle portions configured to receive respective cordless power tool battery packs having footprints that are different and that are different from the footprint of the first cordless power tool battery pack. 19. The system of claim 18 wherein a battery pack that is received in the battery receptacle or the adapter received in the battery receptacle is one of a plurality of battery packs having different voltages, the system including a voltage regulation circuit coupling the battery receptacle to the starting device, the voltage regulation circuit providing at an output coupled to the starting device a voltage at a desired level for the starting device regardless of the voltage of the battery pack. 20. A portable power driven system, comprising: a manually movable frame supporting an internal combustion engine that drives an output device supported on the frame, the internal combustion engine coupled to the output device; a starting device coupled to the internal combustion engine; and a battery receptacle supported by the frame and electrically coupled to the starting device, the battery receptacle configured to receive a battery pack from a cordless power tool, the battery pack received in the battery receptacle and providing electrical power to the starting device. 21. The system of claim 20 including an enclosure with a hinged lid and a base portion, the base portion having the battery receptacle. 22. The system of claim 21 wherein the lid has at least one biasing member that, when the lid is in the closed position, contacts the battery pack to urge the battery pack into the battery receptacle. 23. The system of claim 22 wherein the at least one biasing member includes a leaf spring. 24. The system of claim 23 wherein the battery receptacle receives a battery pack that is one of a plurality of battery packs having different voltages, the system including a voltage regulation circuit coupling the battery receptacle to the starting device, the voltage regulation circuit providing at an output coupled to the starting device a voltage at a desired level for the starting device regardless of the voltage of the battery pack received in the battery receptacle. 25. The system of claim 20 wherein the battery receptacle receives a battery pack that is one of a plurality of battery packs having different voltages, the system including a voltage regulation circuit coupling the battery receptacle to the starting device, the voltage regulation circuit providing at an output coupled to the starting device a voltage at a desired level for the starting device 26. The system of claim 21 wherein the battery receptacle is configured to receive a tower type battery pack. 27. The system of claim 21 wherein the battery receptacle is configured to receive a rail type battery pack. 28. The system of claim 20 wherein the battery pack is secured to the system by at least one fastening device. 29. The system of claim 20 including at least one adapter having an insertion portion having a footprint that is the same as the footprint of the first cordless tool battery pack, the adapter having a battery receptacle portion configured to receive a second cordless power tool battery pack having a different footprint than the first cordless power tool battery pack. 30. The system of claim 29 wherein the battery pack that is received in the battery receptacle or the adapter is one of a plurality of battery packs having different voltages, the system including a voltage regulation circuit coupling the battery receptacle to the starting device, the voltage regulation circuit providing at an output coupled to the starting device a voltage at a desired level for the starting device. 31. The system of claim 20 wherein power driven system is a compressor and the output device includes an air compressor. 32. The system of claim 29 wherein the battery receptacle receives a battery pack that is one of a plurality of battery packs having different voltages, the system including a voltage regulation circuit coupling the battery receptacle to the starting device, the voltage regulation circuit providing at an output coupled to the starting device a voltage at a desired level for the starting device regardless of the voltage of the battery pack received in the battery receptacle. 33. The system of claim 24 wherein the power driven system is a compressor and the output device includes an air compressor. 34. The system of claim 33 wherein the battery receptacle receives a battery pack that is one of a plurality of battery packs having different voltages, the system including a voltage regulation circuit coupling the battery receptacle to the starting device, the voltage regulation circuit providing at an output coupled to the starting device a voltage at a desired level for the starting device regardless of the voltage of the battery pack received in the battery receptacle. 35. The system of claim 29 wherein the power driven system is a compressor and the output device includes an air compressor. 36. The system of claim 35 wherein the battery pack that is received in the battery receptacle or the adapter is one of a plurality of battery packs having different voltages, the system including a voltage regulation circuit coupling the battery receptacle to the starting device, the voltage regulation circuit providing at an output coupled to the starting device a voltage at a desired level for the starting device. 37. The system of claim 20 wherein the power driven system is a power washer and output device includes a pump. 38. The system of claim 37 wherein the battery receptacle receives a battery pack that is one of a plurality of battery packs having different voltages, the system including a voltage regulation circuit coupling the battery receptacle to the starting device, the voltage regulation circuit providing at an output coupled to the starting device a voltage at a desired level for the starting device regardless of the voltage of the battery pack received in the battery receptacle. 39. The system of claim 24 wherein the power driven system is a power washer and output device includes a pump. 40. The system of claim 39 wherein the battery receptacle receives a battery pack that is one of a plurality of battery packs having different voltages, the system including a voltage regulation circuit coupling the battery receptacle to the starting device, the voltage regulation circuit providing at an output coupled to the starting device a voltage at a desired level for the starting device regardless of the voltage of the battery pack received in the battery receptacle. 41. The system of claim 29 wherein the power driven system is a power washer and output device includes a pump. 42. The system of claim 41 wherein the battery pack that is received in the battery receptacle or the adapter is one of a plurality of battery packs having different voltages, the system including a voltage regulation circuit coupling the battery receptacle to the starting device, the voltage regulation circuit providing at an output coupled to the starting device a voltage at a desired level for the starting device. 43. A portable power driven system, comprising: a manually movable frame supporting an internal combustion engine that drives an output device supported on the frame, the internal combustion engine coupled to the output device; an electrically powered starting device coupled to the internal combustion engine; a control panel coupled to the frame including a battery receptacle electrically coupled to the starting device; the battery receptacle materially the same as a foot of a cordless power tool that receives a battery pack; and the battery pack received in the battery receptacle and providing electrical power to the starting device. 44. The system of claim 43 wherein the battery receptacle includes a housing having an outer plate that conforms to an upper plate of the battery pack and a central bore that conforms to a tower of the battery pack. 45. The system of claim 44 wherein the housing of the battery receptacle includes catches at opposed sides of the outer plate that mate with latches of the battery pack. 46. The system of claim 45 wherein the outer plate of the housing of the battery pack includes a keyway projecting from the bore in the housing of the battery pack that receives a key at a base of the tower of the battery pack. 47. The system of claim 46 wherein the battery receptacle receives a battery pack that is one of a plurality of battery packs having different voltages, the system including a voltage regulation circuit coupling the battery receptacle to the starting device, the voltage regulation circuit providing at an output coupled to the starting device a voltage at a desired level for the starting device regardless of the voltage of the battery pack received in the battery receptacle. 48. The system of claim 43 wherein the housing of the battery receptacle includes catches at opposed sides that mate with latches of the battery pack. 49. The system of claim 43 including a collar surrounding the housing of the battery receptacle and secured to the control panel to secure the battery receptacle to the control panel. 50. The system of claim 49 wherein the housing of the battery receptacle includes flanges that project from opposed sides of the outer plate that define slots therebetween that mate with inwardly extending projections of the collar. 51. The system of claim 50 wherein the battery receptacle includes a housing having an outer plate that conforms to an upper plate of the battery pack and a bore that conforms to a tower of the battery pack. 52. The system of claim 51 wherein the housing of the battery receptacle includes catches at opposed sides of the outer plate that mate with latches of the battery pack. 53. The system of claim 51 wherein the battery receptacle receives a battery pack that is one of a plurality of battery packs having different voltages, the system including a voltage regulation circuit coupling the battery receptacle to the starting device, the voltage regulation circuit providing at an output coupled to the starting device a voltage at a desired level for the starting device regardless of the voltage of the battery pack received in the battery receptacle. 54. The system of claim 43 wherein the portable power driven system is a compressor and the output device includes an air compressor. 55. The system of claim 54 wherein the battery receptacle receives a battery pack that is one of a plurality of battery packs having different voltages, the system including a voltage regulation circuit coupling the battery receptacle to the starting device, the voltage regulation circuit providing at an output coupled to the starting device a voltage at a desired level for the starting device regardless of the voltage of the battery pack received in the battery receptacle. 56. The system of claim 43 wherein the portable power driven system is a power washer and the output device includes a pump. 57. The system of claim 56 wherein the battery receptacle receives a battery pack that is one of a plurality of battery packs having different voltages, the system including a voltage regulation circuit coupling the battery receptacle to the starting device, the voltage regulation circuit providing at an output coupled to the starting device a voltage at a desired level for the starting device regardless of the voltage of the battery pack received in the battery receptacle.