All items tagged with PDF and Battery (18)

1-07-1994 | 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...

1-12-1993 | 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...

1-07-1993 | Many battery-operated appliances have an LED indicator that shows the state of the battery. If the battery is almost flat, the LED flickers....

1-12-1992 | 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...

1-07-1991 | A frequent annoyance with battery-operated equipment is that just after you switch it on you notice that the battery is fIat. Quite proba...

1-07-1991 | The charger deseribed switches off the charging voltage when the battery reaches its full nominal voltage and switches it on again when...

1-07-1991 | Keeping your car battery constantly charged when the car is not in use appreciably increases the life of the battery. Charging is, of co...

1-12-1990 | The portable carger is intended primarily to give model enthusiast the opportunity of charging their NiCd betterles from Cl car battery o...