CORDLESS TOOL SYSTEM
First Claim
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1. A cordless tool system, comprising:
- a tool; and
a lithium based battery pack for supplying power to the tool;
wherein the tool has a power of equal to or more than 300 W, andwherein the ratio of discharging time to charging time of the lithium based battery pack is approximately 25;
35.
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Abstract
A tool discharges one battery pack and a charger simultaneously charges another battery pack to provide for continuous and circular operation of the tool. The ratio of the discharging time to the charging time is approximately 25:35.
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Citations
16 Claims
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1. A cordless tool system, comprising:
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a tool; and a lithium based battery pack for supplying power to the tool; wherein the tool has a power of equal to or more than 300 W, and wherein the ratio of discharging time to charging time of the lithium based battery pack is approximately 25;
35. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A cordless tool system, comprising:
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a tool; and a lithium based battery pack for supplying power to the tool; wherein the tool has a power of equal to or more than 300 W and an average working current of equal to or more than 12 A and wherein the lithium based battery pack has a nominal voltage of equal to or more than 56V.
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16. A method for using a cordless system for a tool with a power of equal to or more than 300 W including a charger and at least two lithium battery packs which may alternately discharge electricity to the tool in a circular and uninterrupted manner, the method comprising:
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disposing a first battery pack on the tool for discharging; disposing a second battery pack on the charger for charging; removing the second battery pack from the charger and disposing it on the tool for discharging continuously after the first battery pack is discharged; and disposing the first battery pack on the charger for charging; wherein the discharging time of the battery packs is equal to or more than the charging time.
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Specification