| The circuit allows NiCd type LR03 (AAA) and LR6 (AA) rechargeable cells to be discharged in a controlled manner. The discharging (load) curr...
More about Battery (449)
| It is not generally known that it is possible to ascertain the extent of charge of a battery with a standard digital voltmeter. It does not...
| The circuit described here is eminently suitable to indicate the capacity of a battery. We use a cheap electric clock for this. By connectin...
| Occasionally there is the need to charge a battery from a laptop, mobile phone or PMR handheld using an ordinary laboratory power supply. It...
| This article shows a simple circuit for slow charging while preventing any risk of overloading the battery. The circuit consists of just fou...
| The TIRIS family of RFIDs from Texas Instruments can be found in many consumer applications ranging from vehicle security to logging maratho...
| This circuit was designed to ‘baby-sit’ SLA (sealed lead-acid or ‘gel’) batteries using freely available solar power. SLA batteries suffer f...
| This small but very effective circuit protects a lead-acid battery (12-V solar battery or car battery) against overcharging by a solar modul...
| Professional (directional) microphones often require a phantom supply of 48 V. This is fed via the signal lines to the microphone and has to...
| After buying a number of DECT telephones, we noticed that these became quite warm while charging. That surprised us, because the manufacture...