4/24/2023 0 Comments Snapdragon battery guru xdaBattery 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. Quick Charge requires both the power supply and the device being charged to support it, otherwise charging falls back to the standard USB ten watts. Though not publicly documented, the voltage negotiation between device and charger has been reverse-engineered, and a custom voltage can be manually requested from the charger using a trigger circuit that simulates the negotiation to an end device. Ĭircuit board to simulate QuickCharge voltage request signals Numerous other companies have competing technologies, including MediaTek Pump Express and OPPO VOOC (licensed to OnePlus as Dash Charge), the latter of which supplies higher current without voltage increase, relying on thicker USB wires to handle the current without overheating, as described in VOOC § Technology. As current is lower for the same power if voltage is increased, there is less resistive loss, which becomes significant for longer cables. The higher voltage available allows more power (watts) to be supplied through wires without excessive heating. Quick Charge is a proprietary technology that can charge battery-powered devices, primarily mobile phones, at power levels exceeding the ten watts (5 volts at 2 amps) supported by the basic USB standard, using existing USB cables. Quick Charge is also used by other manufacturers' proprietary rapid-charging systems. Many 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 output voltage supplied by the USB charger, while adopting techniques to prevent the battery damage caused by uncontrolled fast charging and regulating the incoming voltage internally. Quick Charge is supported by devices such as mobile phones which run on 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 battery charging protocol developed by Qualcomm, used for managing power delivered over USB, mainly by communicating to the power supply and negotiating a voltage.
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