Battery Saver Technologies aims to maintain at least 80% of the battery's original charge capacity after 500 charge cycles. INOV is an algorithm that determines the optimum power transfer while maximizing efficiency. Quick Charge 3.0 introduced INOV ( Intelligent Negotiation for Optimal Voltage), Battery Saver Technologies, HVDCP+, and optional Dual Charge+. Quick Charge 2.0 introduced an optional feature called Dual Charge (initially called Parallel Charging), using two PMICs to split the power into 2 streams to reduce phone temperature. This new technology was first used in a Xiaomi Mi Mix 3 prototype that charged from 1% to 100% in 17 minutes. In 2012 the USB Implementers Forum announced that the USB Power Delivery (USB PD) standard had been finalized, allowing for devices to draw up to 100 watts of power over supported USB ports. To use Quick Charge, both the host providing power and the device must support it. voltage negotiations between device and charger) has been reverse-engineered. Though not publicly documented, the protocol (e.g. Numerous other companies have their own competing technologies, including MediaTek Pump Express and OPPO VOOC (licensed to OnePlus as Dash Charge). Quick Charge is a proprietary technology that allows for the charging of battery powered devices, primarily mobile phones, at power levels exceeding the 5 volts at 2 amps allowed by basic USB standards. Quick Charge is also used by other manufacturers' proprietary rapid-charging systems Most chargers supporting Quick Charge 2.0 and later are wall adaptors, but it is implemented on some in-car chargers, and some power banks use it to both receive and deliver charge. It charges batteries in devices faster than standard USB allows by increasing the voltage, while adopting techniques to prevent the battery damage caused by uncontrolled fast charging. Quick Charge is supported by devices such as mobile phones which have Qualcomm SOCs, and by some chargers both device and charger must support QC, otherwise QC charging is not attained. Quick Charge (QC) is a proprietary Qualcomm battery charging protocol used for managing power delivered over USB, mainly by communicating to the power supply and negotiating a voltage.
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