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No you shouldn't use a 14 volt 5 amp adapter on a 12 volt 5 amp device unless you know for sure that the 12 volt device has an internal voltage regulator that will lower the voltage to the correct voltage range the device was designed to use.
As long as you always take care to check the output voltage with a voltmeter first, to be sure that the voltage from the adapter is regulated, meaning that it does not rise when a lower current in amps is drawn from it, you may be able to use an adapter that gives the right voltage at a higher amp output rating than the device actually takes. (For example, it may be possible to use a 12 volt 7 amp adapter for a 12 volt 5 amp device.)
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoDepending on what the 15 volt device is, it may operate on 12 volts. A 15 volt device is designed by the manufacturer to operate on their specific voltage. Give is a quick try and see if it will work. A word of warning, the one thing about using a lower voltage is that the current draw will be higher on resistive components and that may cause heat damage to some of the internal components of the device.
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Can you replace 12v vdc adapter by 12v vac adapter?
No, 12 volt AC is a different from 12 volt DC. Have a second look at the 12 AC volt adapter's output label. Most adapters contain a bridge rectifier in them that makes a conversion within the adapter. An example of this is in phone chargers.
Can a 12 volt 0.5 amp ac adapter substituted with a 7.5 volt 1 amp adapter?
No, it is not recommended to substitute a 12 volt 0.5 amp AC adapter with a 7.5 volt 1 amp adapter. The voltage and amperage ratings need to match the requirements of the device you are powering. Using a lower voltage adapter may not provide enough power, and using a higher voltage adapter can potentially damage the device.
Can you use a 9v dc 210mA adapter on a 12v dc 150mA device?
No, if the device requires 12 VDC then no substitute adapter of a different voltage will work.
Can you use a 15 volt dc adapter to run a 12 volt portable DVD player The adapter in question lists as a class 2 transformer if that makes any difference?
No. You should use the adapter specified for the DVD player. Using the wrong adapter can damage the DVD player and/or the adapter and/or cause a fire.
Can you use a 12 VDC 2A adaptor on a 12 VDC 1A device?
Yes, there will be no problem with this adapter. The 1 amp device will only be drawing half of what the adapter can produce.
Can I use 12V DC output universal ACDC adaptor with equipment that uses AC adapter 12VAC 2A?
There are many electronics today that run on 12 volt DC power. The good news for anyone who is traveling is that you can use a 12 volt AC adapter 12 VAC 2A.
Will a 120 volt AC to 12 volt AC adapter charge a 12 volt car battery?
No, the battery is DC not AC.
Will 12 volt transformer work on 3 volt device?
No, it will destroy the 3 volt device.
Can 12V 1A adapter be used for 12V 2A device?
no, it may damage the appliance.1Can_12V_2A_adapter_be_used_for_12V_1A_device, 2a adapter cannot be used for 12v, 1a device if the so mentioned parameters are input parameters of the device.Yes, a 12 volt 2 amp adapter has more that enough capacity to operate a 12 volt 1 amp device. In fact the adapter can operate devices up to a limit of 12 volts 2 amps. A device larger than 2 amps connected will tend to heat the adapter up and eventually cause it to fail.
Can you run a 12 volt ac water pump with a 12 volt dc adapter?
No. You need 12 volt AC to run a 12 volt AC motor, not 12 volt DC.
Can you use a 12V 150mA adapter on a device that requires DC 12 V at 1 A?
As long as the current output is greater than power supply it replaces it will work fine. If the replacement is rated for less current (amperes) than the original you don't want to use it. Of course a DC supply has to be replaced with a DC power supply. AC with an AC supply. The polarity should be the same and the voltage should be the same and the pin and barrel should be the same diameter as well.
Can you use a 19v adapter on a 15v device?
In short: Yes. As long as the voltage is the same, it makes no difference if the rated current is higher on the supply than on the device you want to operate. If you would take a 1.5 amp adapter for a 2 amp device, you overload the adapter which results in shut down or failure.
