[Moris_zen] built a device to accurately measure the capacity of batteries. He needed to have an accurate measurement for the batteries he uses in a RC airplane. Knowing the discharge time allows him ...

I made this amazing battery pack using 18650 cells, performing about 3X better than a LiPo battery of roughly the same weight ...

The 18650 is perhaps the world’s favorite lithium battery, even if electric car manufacturers are beginning to move towards larger cells such as the 21700. Used heavily in laptops and flashlights, it ...

Gill's new TCT-1000 battery capacity analyzer is designed to simplify battery capacity checks for A&P mechanics because it automatically tests 12- and 24-volt lead-acid aircraft batteries. It doesn't ...