Lead-Acit Battery Charger
Approx construction cost US$48
Keep those 6V and 12V batteries properly charged!
This article describes the construction of a charger specially designed for small lead-acid batteries. Lead-acid batteries are found in many pieces of electronic equipment. The small type provides a convenient and relatively inexpensive means of storing a useful amount of energy. Unlike nickel-cadmium cells, they do not suffer from the “memory effect” which results in the gradual loss of capacity when they are not fully discharged before recharging. In fact, they provide their best service life when used in “float” applications where the charge is kept “topped-up” rather than allowing it to fall to a low state.
More details on this construction project can be found in the August 2001 issue of EPE Online, the world's first web-delivered electronics and computing hobbyist magazine.
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