18w fast charge to full charge time depends on the capacity of the mobile phone battery, generally in 1-2 hours.
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18W stands for power, power = current * voltage. Generally speaking, the higher the power, the faster the charging speed.
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Mobile phone 18 watt fast charge is to support QC3.0 fast charge protocol, mobile phone charger output is 9V2A, charging speed is relatively fast, generally an hour or so full, generally ordinary fast charge is 5V2A, 10 watt charger.
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Extended information:
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Phone Charging Tips:
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1, do not overdischarge. Wait for device prompt " Lack of electricity You should charge it; The battery was overdischarged when the device turned itself off. This affects battery life. So when the phone says the battery is low, it can be charged.
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2, do not overcharge. When the charger gives a full indication, the charger should be unplugged. Now the charger generally has a full stop design, do not remove the battery from the charger for a short time, but it is okay to leave the battery on the charger, until the grid voltage rises at night, the charger that has stopped charging, after the voltage rises, it will continue to charge, causing the battery to overcharge. This affects battery life.
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3. If the battery is not used for a long time, it should be charged to 60%, stored separately in a cool and dry place, and recharged every 4 or 5 months.
This depends on the specific capacity of the charging treasure, probably in general in 10,000 MA charging treasure, it will take about three hours to be full.
You mean to charge the phone? 18 watts fast Charge the phone, it will be full in about an hour.