All items tagged with technology and charger (11)

| Letters from our readers.

| Letters from our readers.

| The charger is designed to charge NiCd batteries with capacities of 150-4000 mAh. A potential 5 V higher than the nominal voltage of the...

| This unit is intended as an add-on for the many lead acid battery chargers that have no charge indicator. A green LED shows that the bat...

| A battery of solar cells can recharge a NiCd battery with better than 80%, efficiency, provided the solar battery voltage exceeds the fu...

| A part from use as a standard charger, the present unit may also be used for continuous trickle charging to keep a 12 V lead-acid battery...

| Nickel-metal-hybride (NiMH) batteries have now become widely available. A typical one is the 120AAH, which has a capacity of 1.2 Ah in si...

| The charger makes cunning use of the properties of a Type 555 timer. The tnternal window comparator of the lC is set to 4.7 V by zener dio...

| The charger deseribed switches off the charging voltage when the battery reaches its full nominal voltage and switches it on again when...

| Keeping your car battery constantly charged when the car is not in use appreciably increases the life of the battery. Charging is, of co...