Nickel Cadmium (NiCd) batteries are widely used in consumer electronics due to their high energy density and long life. Constant current charging is often recommended by manufacturers. Several ...

This design combines power-on and low-battery indication, can operate with any battery voltage up to 15V, has very low current drain (2mA or less) and costs less than $3.50 with new parts. When the ...

Harbor Freight carries almost anything you could need, including useful car accessories like battery chargers. Here are the ...

If you are someone who tends to use a lot of power tools, the Ryobi ONE+ system is a pretty terrific investment. Through their standard 18V battery, you can power everything from drills to ratchets to ...

Linear Technology Corp.’s new LTC4006 is a 2- to 4-cell Li-Ion battery charger with up to 4A charge capability that includes essential I/O status signals required for constructing a simple autonomous ...