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Yes, here is an example of what the 300 or 1200mA does for you. The voltage is 9 and that won't change. The mA is the demand you put on that voltage. If you have a spot light that needs 1200mA and you connect a 300mA your light will light up but will be dim, plus you will overheat the adapter. But with the required 1200mA it will be bright and stay bright. Most electronics have a built in system that will take what it needs, if you use the 1200mA it should only take what the demand is in this case it should be 300mA but never the other way around. You can provide more mA's never less.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoIf you give 9volts instead of 12volts you get as a result not to charge fully since your maximum voltage is 9volts. The current of 300mA will take much longer time to charge the 500mA needed an possibly will never make it. There is no danger to burn the device since you have lower power.
Wiki User
∙ 13y agoIt depends on the equipment being powered. Some devices will handle the additional voltage without any problem while others may be damaged beyond repair if 9V is supplied instead of 6V.
If you are asking this question, the safe answer is to say no although a qualified engineer may be able to advise differently with full details of the equipment. It's probably far easier to obtain a power supply of the right type rather than take a risk.
Wiki User
∙ 12y agoYes it can safely be used. 500 mA mean it can sustain current up to this limit and any thing below this is safe enough
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Can a 6 volt adapter be substituted for a 9 volt adapter?
No, of course not. The 6v adapter only produces 6v, while the load expects 9v.
Can you use a 9v 300mA adapter on a 9v 200mA device?
No. The adaptor will overheat.
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.
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.
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 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.
What is the difference between a 9v 300mA Adapter and a 12v 300mA Adapter?
difference is 2.7 amperes in numbers will be 12 volts 3 amps and the other will be 12 volts .3 amps
Can you use 9V 500mA adapter for 9v 700mA 6.3VA device?
yes, if the other adapter is a va
Will 9v 1100mA power adapter work with your 9v 500mA device?
Yes, a 9v 1100mA power adapter work with your 9v 500mA device. The mA number is the maximum amount of amperage that the adapter will produce without overloading itself. At 500 mA the adapter will only be working at half load.
What adapter has more power the 9v 600ma or the 9v 800ma?
The capacity of the 800 mA adapter is 200 mA larger than the 600 mA adapter.
Will a 9v DC adapter damage a device that requires a 6v DC adapter?
Yes, the manufacturer specifies what the working voltage of a device will be and that voltage has to be adhered to.
Can you use a 9V 600mA adapter on a 9V 400ma scanner?
You can use any 9v adapter as long as the output amperage is rated higher than the amperage rating of your appliance so yes a 600ma adapter can be used to power a 500ma or 400ma appliance
