The charging method includes the steps of charging a battery pack, sensing voltage of the battery pack, calculating voltage change rate, detecting a first inflection point based on the voltage change rate so long as a voltage step is not detected, detectin...

A charger for charging a battery power source removably disposed on and connectable to the charger, the charger including a control

A mechanism for ejecting a battery pack, comprising a frame, a cavity in said frame for receiving a battery pack, a receiving member adjacent said cavity, said receiving member being capable of engaging with a portion of the battery pack to hold the batter...

An improved battery pack is proposed. The battery pack includes a housing, and first and second cells disposed in the housing, the first cell having a radius and a periphery. In addition, the battery pack includes a metal strap connecting the first and sec...

A control panel for a portable electric generator. The control panel includes three distinct zones having logically organized switches and outlets. The first zone includes those switches used most frequently. The second zone includes a plurality of 120VAC ...

The charging method includes providing a current to the battery pack, sensing first and second battery temperatures, determining a first temperature change rate between the first and second battery temperatures, sensing a third battery temperature, determi...

A light detector which includes a housing having front and rear walls, a light receiving section disposed on the front wall, and displays disposed on the front and rear walls for showing the location of received light relative on the light receiving sectio...

In accordance with the present invention, an improved audio equipment is employed. The audio equipment comprises a main housing (11) and a receptacle assembly (50) for receiving a battery (60) via a connector (56) appropriate to contact the battery termina...

A battery charger for a chargeable battery pack (26) of a cordless power tool (20) comprising a charger housing (160), contacts (162) for electrically coupling with the battery pack (26) which battery pack has a battery housing (34) with a vent system (38)...