I have a Sears deep-cycle lead-acid 12v battery already which I've only used once or twice a year for certain power applications. I was thinking of purchasing an identical model and wiring it in ...

We’re willing to bet most Hackaday readers have accidentally spot welded a few electrical contacts together over the years, complete with the surge of adrenaline that comes with the unexpected pops ...

The future of batteries, like that of so many of the products they power, is clearly toward smaller, lighter and more powerful models. Developing concurrently with these new battery designs are ...