U2402B Battery charger:

Rechargeable batteries are environmentally friendly and cost-effective in everyday use. Moreover, they are wellbehaved as long as you have enough time to charge them at an easy rate. Fast charging, say, within the hour, is a different kettle of fish, and should be done with care. The charger described here couples speed with intelligence, and knows how to deal with any eventuality which might occur during the charging process.