Image source: Tesla. Tesla Motors' (NASDAQ: TSLA) vehicles far outpace its competitors' when it comes to electric range capacity. The Model S has a 75 kWh battery with a range of at least 240 miles, while its closest competitors -- the Nissan (NASDAQOTH: NSANY) Leaf, the BMW (NASDAQOTH: BAMXF) i3, and General Motors' (NYSE: GM) Chevrolet Bolt -- fall far short. One reason is that Tesla uses larger battery packs than its competitors. But the company also tweaks existing battery technology to make it more efficient, and benefits from using mass-produced cylindrical batteries that are found in most laptops. Watch the video below to find out how Tesla's battery technology has helped the company keep its closest all-electric competitors at bay. A secret billion-dollar stock opportunity The world's biggest tech company forgot to show you something, but a few Wall Street analysts and the Fool didn't miss a beat: There's a small company that's powering their brand-new gadgets and the coming revolution in technology. And we think its stock price has nearly unlimited room to run for early in-the-know investors! To be one of them, just click here.