A simple NiCd charger can be built using ‘junk box’ components and an inexpensive LM317 or 78xx voltage regulator. Using a current limiter composed of R3 and a transistor, it can charge as many cells ...

Nerd Ralph loves cheap and dirty hacks, and for that we applaud him. His latest endeavor is a LiFePO4 battery charger that he made out of parts he had on hand for under $0.50 US. (Although we think he ...

Here is the simple circuit to charge 6 V, 4.5 Ah rechargeable Lead-acid battery from the solar panel. This is a simple solar battery charger circuit designed using LM317 voltage regulator and is used ...

I will be talking about single-series (1sXp) cell configurations, for a simple reason – multiple-series configurations are not something I consider myself as having worked extensively with. The single ...

As the number of portable devices powered by a single Li-ion or Li-polymer cell continues to grow, semiconductor vendors maintain their quest to develop ever-more compact and robust battery-charger ...

A high voltage controller and power manager IC combines with virtually any externally compensated DC/DC power supply IC to create a full-featured battery charger. The LTC4000 only requires an external ...

Increasing numbers of boaters are turning to lithium-iron-phosphate (LiFePO4) batteries to power house circuits and electric trolling motors. This brings up a question: Can boaters effectively ...