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Adapter Same Voltage Different Amp. The adapter output v matches the rated input v of the device. I've just plugged an 18.5v 6.4a hp power supply into an hp laptop;
GW Security 12 Volt 3 Amp AC/DC Power Adapter from www.amazon.com
The current output is not a concern, because the phone will only use what it needs. The power formula p (watts) = i (ampere) x v (volts) shows you that if for example the needed power is 5 watts and the adapter delivers 12 volts, the adapter must be able to supply a current of at least 0,41 amps (or 410 ma). This doesn't mean your device will consume 3.42 a when its powered with this adapter;
The Current Output Is Not A Concern, Because The Phone Will Only Use What It Needs.
A power supply with more amps than required will not harm your router. Divide the number of watts by the number of volts to get amperage. If those 3 conditions are met then the new ac adapter is safe.
It Will Only Draw What It Needs, If There Isn't Enough Power (Wattage) Devices Will Often Draw More Voltage To Make Up The Difference And Tend To Overheat.
There's no risk in selecting an adapter that is able to deliver a current of 1 amps (1000 ma) at 12 volts. If you don't have the exact one, use a higher one. Usually, all of this info is on the adapter sticker, remember you are always looking for the output v and mah or a.
Adapters To Different Voltage & Battery Type.
To power your router, look at the volts and amp draw requirements for your device. The voltage on the other hand must match exactly. These slight variances are normal based on different manufactures.
Therefore, The Larger Amperage Is To Increase The Input Wattage Under The Same.
Is using an ac adapter with the same voltage, but higher amperage safe to use? Can i use a 5v 2a charger with a 5v 1a device? Replacing one with 20x the amperage is riskier.
Make Sure That The Supply Is At Least The Minimum Requirement, And That The Polarity Of The Plug Is Correct.
Show activity on this post. The current shown on a power supply is a maximum. You can use one to figure out the other.
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