We’ve covered batteries- but you may be wondering… how do they charge so quickly now? Recent developments have brought down the time to charge a phone to full to 8 minutes – but how does that even work? And, well… is it safe?

Sources:

Voltage, Watts, and Amps:

• learn.adafruit.com, Accessed: 16 July 2021, “Voltages”
• learn.adafruit.com, Accessed: 16 July 2021, “Power Capacity and Power Capability”
• Owlcation.com, Accessed: 16 July 2021, “How to Understand Electricity: Watts, Amps, Volts, and Ohms”

Lithium Ion Charging:

• electronic-notes.com, Accessed: 16 July 2021, “Li-ion Lithium Ion Battery Charging”
• BatteryUniversity.com, Accessed: 16 July 2021, “BU-409: Charging Lithium-ion”
• How-To Geek, 25 May 2020, “What Is Fast Charging, and How Does It Work?”

Qualcomm Quick Charge:

• Belkin.com, Accessed: 16 July 2021, “WHAT IS QUALCOMM® QUICK CHARGE TECHNOLOGY?”
• The Verge, 27 July 2020, “Qualcomm’s Quick Charge 5 standard promises 50 percent charge in less than five minutes“

Xiaomi HyperCharge (200W):

• Tech Times, 14 June 2021, “Xiaomi HyperCharge 200W Comes with One Disadvantage, Sacrificing Your Phone’s Battery Life!“
• The Verge, 30 May 2021, “Xiaomi says it can now fully charge a phone in eight minutes at 200W“

USB Power Delivery (USB-PD):

• Android Authority, 21 April 2021, “USB Power Delivery explained: What you need to know about ubiquitous charging“\
• ZDNet, 2 July 2020, “USB Power Delivery is the fastest way to charge iPhone and Android devices”

Oppo VOOC / OnePlus Warp Charge:

• Digital Trends, 23 March 2021, “How does fast charging work? Here’s every single standard compared“
• Techpp.com, Updated: 9 April 2020, Accessed: 16 July 2021, “Qualcomm Quick Charge vs OnePlus Warp Charge vs Oppo VOOC vs USB-PD”
• Wccftech, 24 June 2018, “OPPO Super VOOC Fast-Charging Technology Explained – Shaming Other Fast-Charging Alternatives in the Process”
• Android Authority, 23 April 2016, “VOOC fast charging – everything you need to know“

Extending Lithium Battery Lifetime:

• University of Michigan News, 17 February 2020, “Tips for extending the lifetime of lithium-ion batteries“
• Wired, 25 August 2019, “How To Get the Most Out of Your Smartphone Battery“

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