Ultra compact and smartly designed, the GENIUS1 is a 1-amp (15-watt) device that is designed to keep 6-volt and 12-volt batteries going strong. The GENIUS 1 can charge all types of lead-acid and ...

Faith is a writer whose work has been featured in EcoWatch and Today’s Homeowner. She holds economics and English degrees from the University of North Carolina at Chapel Hill and likes to ...

It's a good battery for the price and the best EverStart for the money. The EverStart Maxx's three-year warranty factors into its value, especially if the driver lives near ... 4.3-4.6 stars ...

Many readers will have at some time or another built their own lithium-ion battery packs ... as [limpkin] has with this 48 volt pack. It’s based around an off-the-shelf kit aimed at the e ...

Alkaline batteries are more affordable than lithium batteries and great for use around your house. Here are CNET's picks of the best alkaline batteries. Laboratory Technical Project Manager ...

While debugging a strange battery failure in a manufacturing process, [Josh] discovered a new (to us) LiPo battery failure mode. Different battery chemistries react differently to temperature.

However, it also comes with a battery management system, which can help keep the battery from overcharging. If you need double the power, you can get two and change the wiring to “in series” to give ...

Small and quick, the fat-tire Mars 2.0 is an excellent option for last-mile commutes or just getting around town.

*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title ...

*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title ...

Is your phone, tablet, or laptop typically in the battery red zone before the day's end? These portable chargers and power banks give you the most boost when you're out of juice. I’m a Mobile ...