Yes, it should work. The device being charged will only take the amount of charge it needs and all the 300 milliamp rating means is that the charger provides an additional 200 milliamps of current....
Yes, a 9 volt 1 amp adapter can also be called a 9 volt 1000 mA adapter. So drawing 300 mA device from it will leave 700 mA spare before is reaches its capacity.
No. You can always increase the mila-amps (mA) but not lower them. Also if the polarity of the plug isn't correct, you can cause permanent damage to your equipment.
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...
Yes, a 9 volt 1600 mA AC adapter can be substituted for a 9 volt 300 mA adapter.The mA number represents the highest allowable current to be drawn from the adaptor. The adaptor that you want to...