Tag Archives: hp f4809a battery
Cell phone batteries will be more safe
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 … Continue reading
Caution when you charge a battery
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 … Continue reading