| Here we have yet another excellent universal battery charger that is easy to build and can be used to safely charge practically all commonly...
More about Battery (451)
| In many small battery powered apparatus it is common to have an LED act as a combined indicator for ‘power-on’ and ‘battery state’. The most...
| This battery cooler is used to cool and discharge lead-acid battery packs found in model planes, boats and cars, so that they can then be sa...
| To enable the control module, described in Part 1, to function as a battery discharger, a number of additional hardware components are requi...
| With a suitable load, the terminal voltage of a NiCd or lithium-ion battery is proportional to the amount of stored energy. This relationshi...
| This circuit can measure the capacity of individual cells as well as battery packs with an open circuit voltage of up to 35 V. The only requ...
| Notebook PCs are great but stray too far from a source of power and it’s not long before low-battery warnings start to appear. Mains adapter...
| This circuit makes it possible to do something that was previously unthinkable: reversing the effects of sulphation in tired lead-acid batte...
| More and more electronic devices are portable and run off batteries. It is no surprise, then, that so many flat batteries find their way int...
| Electric torches, watches, pocket calculators, toys and personal stereos, they all need a particular type of battery to do their job. In som...