More about battery (489)

1-07-1991 | The battery charger shown in the diagram may be used to charge a battery or batteries with a total nominal voltage of 12 V (that is, ten...

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 | This little circuit switches off the equipment in your audio rack when this has not produced sound for some time.

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 | Everyone should clean his teeth a tleast a couple of times a day. Dental research shows that cleaning one's teeth for three minutes at a...

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...

1-06-1991 | Ni-Cd batteries are now used in so much everyday equipment that most households need at least one suitable charger. The one presented her...

1-05-1991 | This month we describe a useful little instrument that gives a clear condition indication for the most popular types of dry battery. Based...

1-12-1990 | There are many tirnes that a designer needs to know the value of the internal resistance of a battery. There are quite a few testers that...

1-12-1990 | Applications for this mechanically set and reset bistable are found, among others, in anti-theft devices and model railway crossings.