As smartphones get more powerful, they consume more battery as well. While smartphone processors are getting more advanced, battery technology has mostly stayed in the same spot for years now. To ensure an optimal mobile experience, mobile chip makers are also dipping their toes into battery tech, especially fast charging features. Last year Qualcomm revealed its Quick Charge 3.0. Now it's rival MediaTek's turn to this version 3. Its Pump Express 3.0 promises you won't waste time hugging walls by charging your smartphone from 0 to 70% in just 20 minutes. That's equivalent to 5 minutes of charging for 4 hours of talking.