you’ve probably run into 18650 batteries. You often find these inside laptop batteries and –famously– the Tesla electric vehicle runs on a few thousand of these cells. The number might seem ...

Beginning with the venerable 18650 popular with laptop manufacturers and flashlight builders, Tesla later moved on to using larger 21700 batteries, with the bigger form factor meaning each cell ...

These 18650-format cells are the highest energy density cells currently being produced. Tesla is the only automaker that is continuing to use these commodity laptop cells. Every other automaker ...