Many readers will have at some time or another built their own lithium-ion battery packs, whether they are using tiny cells or the huge ones found in automotive packs. A popular choice it to salvage ...

Hack a Day favorite [Mikey Sklar] is back with a new project. Mini-D is a battery desulfator. If a 12V lead-acid battery sits with a voltage below 12.3V, sulfur crystals will begin to form on the lead ...

Better batteries help make cars greener--and not all of them are large lithium-ion packs for plug-in vehicles. Johnson Controls, the world's largest maker of lead-acid 12-Volt starter batteries, ...