This circuit is an alternative to expensive battery chargers, the trick to lower the cost is to buy a cheap battery charger and expand it with an automatic charge breaker circuit such as the one ...

Because stationary batteries and 48VDC power systems serve as lifelines for telecommunication networks, the reliability of these systems is of the utmost importance. Many system designers rely on ...

The following automatic battery-charger design is created with a circuit that could qualify as the simplest window comparator ever built around a single transistor (see the figure). It starts charging ...

If you buy something from a Verge link, Vox Media may earn a commission. See our ethics statement. Kanex has released a new USB-C portable battery charger that seems like a good deal on the surface.

If you buy something from a Verge link, Vox Media may earn a commission. See our ethics statement. Kanex released its GoPower Watch earlier this week, which it claims is the “world’s first cordless ...