[Phone] Introduction to quick charge | Official Support

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[Phone] Introduction to quick charge

With a unique quick charge technology of BoostMaster, it only taks 39 minutes to charge ZenFone 2 from 0% to 60%. ZE550ML and ZE551ML support quick charge when they are charged with ASUS bundled 18W (9V2A) adapter. Please note, for all areas except Taiwan, only "2.3GHz plus 4G ram (ZE551ML)" is bundled with 18W adapter, while other spec bundled with 7W adapter.

ASUS 18W adapter: Output 9V2A

Please see icon of quick charge shown on screen when a 18W adapter is used.

1. When battery less than 70%: battery icon with "+" on status bar and "Quick Charging" on lower-middle screen.

2. When battery more than 70%: battery icon with "+" on status bar and "Charging" on lower-middle screen.

Note: Adapters, car chargers and powerbank of other brands may have compatibility problems of quick charge. It is recommended to use ASUS genuine adapters.

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