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Asus B121-A1 Power Adapter
If you decide to buy an non-Asus adapter, make sure to check both the voltage and amperage output. Upon choosing a replacement AC adapter, choosing the Asus brand one is always going to be the safest and easiest way to go. Because Asus has been known to use a single AC adapter that is most likely used on other tablet models, double-check the part number or model number of the adapter. A universal power adapter is a possibility if you are desperate. The Asus B121-A1 power adapter is needed for two reasons, to charge up the main battery and powering the tablet.
Red flags of a weak charger
- The majority of Asus power chargers will get warm to the touch when they are plugged in for a period of time
- The tablet does not operate while solely using the AC adapter
- Battery does not charge all the time
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