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# How do I match AC adapter to device?

## How do I match AC adapter to device?

The short version: Voltage (V) should always be the same for both adapter and device. Polarity (plus on the left side or plus on the right side) should always be the same for both adapter and device. Current (A or mA) of the adapter should not be lower than the current of the device but may be higher.

### Are all 12V AC adapters the same?

The right AC adapter for your device is one with matching electrical ratings. The device’s input voltage and current must match the adapter’s output voltage and current. Check the device’s product label or user manual to see its rated voltage and current.

Can I use 12V 1A for 9v 1A?

NO! Your output voltage is wrong, which is the important part. You can safely use an adapter with the same output voltage, and a current (A/mA) rating equal or higher than the original.

What is the difference between an AC adapter and an AC DC adapter?

A DC adaptor differs from an AC adaptor in that the DC adaptor converts AC electricity into DC electricity. For example, a 12 V DC adaptor sold in the United States will convert 120 V AC at 60 Hz into 12 V DC. Like its AC counterpart, a DC adaptor is also rated for maximum power output in watts.

## Can I use 12V 2A for 12V 1A?

Yes You can 12 V 2A for 12 V 1A.

### How do I know if my AC adapter is compatible?

Below is the compatibility range:

1. Voltage Range: The voltage capacity of the adapter should be within 10% of the capacity of the computer.
2. Wattage Range: The wattages of both the adapter and the computer have to be equal.
3. Current Range: The current of the power adapter should never be lower than that of the computer.

Can I use 12v 2A for 12v 1A?

Can I use a 2A charger for a 1A device?

Yes, it is absolutely safe to charge a device with a charger that has more current capacity than needed.

## Will too little amperage hurt a device?

The problem, of course, is the reverse: if your device needs 1.0 amps, but your charger is rated at only 0.5 amps, then any of several problems could result: Charging may not work at all. The device may charge extremely slowly. The power supply may overheat.

### How do I know which AC adapter is compatible?

Any AC adapter is considered compatible with any device if it has all the following traits:

1. The voltage of the adapter has to be identical.
2. The amperage (amps) of the adapter has to be equal or greater than the device.
3. The polarity of the adapter has to be identical.

What happens if you use 2A charger for 1A device?

A power supply (what you’re calling the “charger”) rated for 1A can only provide up to 1A and still operate within spec. If your phone tries to pull much more than that it will excessively load the power supply. At moderate levels of overload the result is likely only the voltage “sagging”.

What is the wattage of the upbright 12V adapter?

UPBRIGHT 12V Adapter For Model: RK DC 1201000 RKDC12 30W Universal Switching Power Supply, AC/DC Adapter AC Adapter For Asus Chromebook C201 C100 C100PA C201 EBK 48-Watt AC Adapter for Microsoft Surface Pro 3 D .

## What is the best 12V AC DC adapter for a Chromebook?

T-Power ( 12v ) Ac Dc adapter for Samsung Chromebook ZMoon 48W 12V 3.6A Replacement Power Supply Charger Sold & shipped by ZMoon INC. Original NETGEAR 12V 3.5A 42W Power Adapter AC Charg UPBRIGHT 12V Adapter For Model: RK DC 1201000 RKDC12 30W Universal Switching Power Supply, AC/DC Adapter

### How many watts is a Netgear power adapter?

Original NETGEAR 12V 3.5A 42W Power Adapter AC Charg [Upgraded Version] 30W Universal AC/DC Adapter, Dtec Original NETGEAR 12V 3.5A 42W Power Adapter AC Charg T-Power ( 12v ) Ac Dc adapter for Samsung Chromebook ZMoon 48W 12V 3.6A Replacement Power Supply Charger Sold & shipped by ZMoon INC.

What kind of power supply Charger do I need for my Chromebook?

ZMoon 48W 12V 3.6A Replacement Power Supply Charger Sold & shipped by ZMoon INC. Original NETGEAR 12V 3.5A 42W Power Adapter AC Charg UPBRIGHT 12V Adapter For Model: RK DC 1201000 RKDC12 30W Universal Switching Power Supply, AC/DC Adapter AC Adapter For Asus Chromebook C201 C100 C100PA C201