Qualcomm Smartphone Batteries can be Charged in Just 15 Minutes

With the new Quick Charge 5 technology from the US chip manufacturer Qualcomm, smartphone batteries can be charged in just 15 minutes.

The new fast charging technology from the American manufacturer will be able to charge smartphone batteries with up to 100 watts. A complete charging process for a battery with a capacity of 4,500 mAh would therefore only take 15 minutes. The first 50 percent would be available after just 5 minutes.

Compared to the previous version, Quick Charge 4, Qualcomm promises 70 percent higher efficiency. However, Quick Charge 5 requires the batteries to be adapted. Instead of a single cell with 4,500 mAh, two separate cells with a capacity of 2,750 mAh each would be installed. The two cells are then supplied with charging current in parallel using the Qualcomm battery chip.

Quick Charge 5 should be available from the third quarter of 2020 – initially only combined with a Snapdragon 865 SoC.

How will technology affect battery life
According to Qualcomm, the battery temperature when charging with Quick Charge 5 will be 10 degrees below that when charging with Quick Charge 4. This should save the battery.

However, there has been evidence for some time that fast charging technologies have a negative impact on the service life of a battery. Since Qualcomm has once again significantly increased the charging power with Quick Charge 5 (Quick Charge 4+ charges via USB-PD with 27 watts), it will have to be seen how well the company can get the problem under control. What seems certain, however, is that conventional chargers are better at protecting the battery in the long term than quick-charge technologies. This could be counteracted by only using quick-charge chargers when there is a real need to quickly charge the smartphone.

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Summary

With the new Quick Charge 5 technology from the US chip manufacturer Qualcomm, smartphone batteries can be charged in just 15 minutes.

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