0
Yes you can, however in an unusual situation (i.e. electrical fault in the device), the adapter will allow 5x the current the device is rated for to pass into that device. In normal operation, the device will draw what it needs, based on fans running or not, etc. Under these conditions, as long as the adapter puts out the proper Voltage, the device will operate just fine.
Wiki User
∙ 12y ago
Wiki User
∙ 10y agoYes, the device will only use the mA it needs.
In theory it should but it totally damaged my Digital Blood Pressure monitor and it's LCD went mad immediately after I tried to connect a higher mA adapter to it.
One should also keep in mind the 'polarity' ie plus and minus terminals on the adapter as they should match the one specified for the equipment otherwise that equipment would get damaged.
I think, just think, that adapters with higher mA (same voltage) do not work like a car battery but transmit a fixed amount of mA which is specified on the adapter. Thus when you use a 700mA adapter on a 300 mA device it will damge the device because the adapter would give out 700mA continuously ( and unlike a car battery won't increase it's mA gradually?}
Better not to use a high powered ( ie mA) instead of a low powered adapter...there is every chance that the gadget will get damaged, more so if it is of the digital type. Polarity also matters.
Wiki User
∙ 8y agoNo it will not work. The output of the adapter is high enough but the voltage difference is too high. The adapter must have an output of 12 volts and any amperage over 500 ma or .5 amps will do the job.
Wiki User
∙ 14y agoYes! It will work well because your device needed only 300mA, but the adapter can afford until 500mA.
Wiki User
∙ 9y agoNo, both the voltages do not match and the device draws more current than the adapter can supply.
Add your answer:
Earn +20 pts
Will 9v 300mA power adapter work with a 9v 700mA device?
No, the adapter's power output has to be equal to or greater that the current draw of the device.
For a device requiring DC 6V 1000mA will a DC adapter output 9V 1000mA also work for this device?
A device which requires 1000mA at 9 volts in order to operate will not work from an output of 500mA. This output is only half the power requirement of the device.
How can you change the 30v1000ma power output on your acdc power adapter to a output of around 30v1ma?
Your power adapter is rated up to 30 volts at 1000ma. (1 amp.) If you have a device which only draws 1 milliamp, then it should work with this adapter, as long as the voltage is correct.
Will a 15DC 1000mA power supply work on a device needing 15DC 1500mA power supply?
Your question is confusing, but if you are asking whether you can use a 9V/250 mA adapter to supply a load device rated at 5 V/1000 mA, then the rule is quite straightforward. The adapter's rated output voltage must match that of the intended load, but its rated current must exceed that of the load. So in your example, you cannot use the adapter with the intended load.
Can you use 5v 1000ma adapter on a 45v 400ma device?
No you can not. The power supply output of 5 volts is under sized. There is no way that a 45 volt device would operate from it. You will need to find a power supply of 45 volts.
Can you power a 9v 700ma device with a 9v 300ma adaptor?
No. The device will try to draw 700 milliamps which will overload the 300 milliamp adapter most likely causing it to burn out and possibly catch fire.
Can you use a 12V DC adapter for 5V DC device?
input voltage is strictly according to applications. If use 12V dc adapter power 5V dc device, the 5v dc device would be damaged.
Can you safely use a universal AC adaptor set for 9V 300mA for a game that requires a 9V 700mA?
No, a power adapter must supply the same voltage, same polarity, and at least as much current as the load requires. Your adapter can only supply 300mA, which is less than the 700mA required by the load.Your game probably will not turn on and the power adapter may be damaged.
Will 6v 300mA power adaptor work with a 6v 500mA device?
Most probably you are using a AC (117V or 220V) to DC 6V converter adapter. If yes, then the answer is no, you cannot use a lower current rating for a device that draws more current. If you plug in a device that needs DC 6V 500 mA to an adapter that can only supply DC 6V 300mA, then the adapter could start sending higher than 6 volts current which may damage your equipment or overheat the adapter. If you are using a higher mA rating adapter, then it's okay. For more technical details, see: http://www.jaycar.com.au/images_uploaded/plugpack.pdf
Can you use a 9v 600Ma adaptor to power a 9v 300Ma appliance?
I think you mean to ask if one can use a 9v 600mA adapter to power a 9v 300mA appliance. Yes, you can do that. A 9v 600mA adapter will deliver 9v at up to 600mA. A mA is one milli amp, or one thousandth of an amp. 300mA is 300 thousandth of an amp, 300/1000 or 0.3 amps. 600mA is 600 thousandth of an amp, 600/1000 or 0.6 amps, and is twice the current of 300mA.
Can you run a 4.3v device with a 5v power adapter?
Yes, you can run a 4.3v device with a 5v power adapter as long as the amperage of the 4.3 volt device is under the amperage capacity of the 5 volt adapter.
What would happen if you used a 19V 3.16Amp power adapter on something that called for a 12V 3Amp power adapter power supply?
You would overload and damage the device and/or the adapter.
