| 摘要 |
A portable battery charger for rechargeable battery powered appliances, tools, toys or the like. The portable battery charger includes, a portable direct current power source, a housing designed to contain said direct current power source, and said housing including a means for parallel electrical interconnection of said portable direct current power source to the direct current power system of the battery powered appliance. The portable direct current power source is comprised of an assembly of primary battery cells and has a nominal DC voltage which approximates that of the charging voltage of the rechargeable battery of the battery powered appliance. The portable battery charger is designed with sufficient power so as to supply power to recharge the rechargeable battery of the battery powered appliance while simultaneously operating the appliance. The dual charging-operating function of the portable battery charger, eliminates the need for a delay in operation time of the appliance when the rechargeable battery of the appliance is in need of recharge. The primary batteries used in the portable battery charger (ie alkaline batteries) are also easily replaceable thus further extending the usefulness of the device.
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