battery org

Lithium-ion batteries supply the power for cell phones and PDAs, and larger devices such as laptops, cordless screwdrivers and lawnmowers are becoming increasingly dependent on this power source. The advantage of these power storage devices lies in their high energy density and voltage (up to four volts). In terms of safety, however, they have one [...]

When charging a lead acid battery with over-voltage, current limiting must be applied once the battery starts to draw full current. Always set the current limit to the lowest practical setting and observe the battery voltage and temperature during the procedure. If the battery does not accept a normal charge after 24 hours under elevated voltage, [...]