At Mobile World Congress in Barcelona today, Oppo showed how far it’s come in mobile battery tech. The company demoed a prototype device with 2,500mAh power that charged fully in just 15 minutes. That’s crazy fast by any standard. On stage, the device equipped with Oppo’s new SuperVOOC technology went from 5 percent to 58 percent in just five minutes. That means you could effectively get about 10 hours of talk time even if you can only juice up your battery while you wolf down your breakfast before you head out for the day. A prototype device showing Oppo’s SuperVOOC charging…
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