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
No. Your portable radio needs 800mA to operate. Your adapter can only produce 400mA. If you make the connection the adapter will rapidly heat up and probably burn out.
Yes you can. Given the fact you're talking about milliamps - the slight increase in amps will have no detrimental effect.
no .never
Yes, you can substitute a 6V 600mA adapter for a 6V 100mA adapter. The important thing is to match the voltage (6V) while ensuring the new adapter can supply at least the same current (milliamps) as the original, to avoid damaging the device or causing underperformance. In this case, the 600mA adapter has a higher current capacity, which is safe to use with a device that previously used a 100mA adapter.
Yes, you can use a 6-volt adapter with 200mA in place of a 6-volt adapter with 600mA, but it depends on the device's power requirements. If the device requires more than 200mA to operate, it may not function properly or could potentially damage the adapter. However, if the device draws less than 200mA, the lower-rated adapter may work fine, but it could overheat or fail if the demand exceeds its capacity. Always check the device's specifications for safe operation.
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.
Yes, you can use a 500mA charger for a 400mA device. The device will only draw the amount of current it needs (400mA) from the charger, so there is no risk of overloading it. However, ensure that the voltage of the charger matches the device's requirements to avoid potential damage.
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.
input voltage is strictly according to applications. If use 12V dc adapter power 5V dc device, the 5v dc device would be damaged.
yes this will work fine
No. The voltage rating is the same, but the lower current rating on the 400ma power supply might cause the voltage to drop way below 12 volts, and on some devices a lower voltage than it is rated for will cause it damage.
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