This reverse polarity protection NiCd battery charger can charge up to 7 NiCd batteries connected in series. This number can be increased if the power supply is increased with 1.65V for each ...

[Chris] was unhappy with the battery performance of his Rovio. It seems that he’s not alone, so he set out to reverse engineer the battery charging circuit to see if there was a fix. Boy is there, ...

Few components in portable system design have as pervasive an impact on the user’s experience with the product as the power source and the system used to charge it. The length of time the battery ...