I made this amazing battery pack using 18650 cells, performing about 3X better than a LiPo battery of roughly the same weight and size. So instead of flying for 15 min, now you can fly for 45 min.

When the battery was first invented in the 1800s, its energy storage capabilities unlocked innovation in unimaginable ways. From discs of copper and zinc held together by old-school electrolytes, the ...

Writer and occasional reluctant perpetrator of engine swaps, James O'Neil is a malaise era enthusiast and also fascinated by the many ways the auto industry has since recovered from those dark days.