The humble battery charger has evolved to a smart, microprocessor-controlled battery charger-maintainer, able to detect weak batteries and—to an extent—“repair” them, alert the operator to dangerous ...

When we saw [Max.K]’s automatic NiMh battery charger float past in the Hackaday tips line, it brought to mind a charger that might be automatic in the sense that any modern microcontroller based ...

Sure, you could grab your cell phone and call a mechanic at the first sign of car trouble, or you could become self-reliant by buying a couple of things that can get you up and running almost as ...

Nobody wants to have their car battery die. Thankfully, car battery chargers have become an increasingly more popular way to either prevent — or, at least, significantly delay — that from happening.

️ Editor's note: This article was updated with new information in December 2025. Dead batteries are a predictable reality for any car that spends more time parked than driven. Battery discharge does ...

We earn commissions from purchases you make using links in our articles. Learn more. A car battery charger will make sure you can start your car if you're not using for a while. If you’re going to be ...

A charged battery is a happy battery. Keeping your car’s battery properly charged is essential to long life and reliability. When you drive, your car’s charging system keeps your battery topped up.

Here is a 12 volt lead acid automatic battery charger that shut off the charging process once the battery attains full charge. This prevents overcharging of the battery so that, the charger can be ...

Whether you're getting ready for a road trip or just popping to the store -- there's nothing worse than finding your car battery drained. Sure, you can always ask a neighbor for a jump to give your ...