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What is the difference between input and output on a charger?
Chargers and devices are rated for the power they can deliver and/or receive. The output of a charger is the maximum power it’s able to deliver to a device. The input of your device is the maximum power it will receive.
Does the output of a charger matter?
So it is important to match voltage between the charger and device. It doesn’t matter if the power supply / charger can provide more current then the device requires. Providing less current will prevent charging or slow it down the same as a poorly designed charger can also prevent charging or slow it down.
Does voltage need to match?
The voltage SHOULD match (power adapters provide a steady voltage over a range of currents), whereas the current MUST meet or exceed. If the voltage is too low, you’ll get either nothing, or odd / failure behavior when the power draw on the system gets high.
Is rated power input or output?
In electrical engineering and mechanical engineering, the power rating of equipment is the highest power input allowed to flow through particular equipment. According to the particular discipline, the term “power” may refer to electrical or mechanical power.
Does input voltage matter?
Input, output, doesn’t really matter as long as you are comparing same side thing on both chargers. Since you need charger of certain voltage for the laptop to work, your output voltage is set. If you use charger with less than specified Current rating (Amps) you end up with less than specified power to laptop.
Why does my Charger have different output values?
What’s confusing me is the different output values listed on the charger. From what I understand too high voltage can damage the device that is being charged and too low current can damage the charger/cable, while current above required is always fine (please correct me if I’m wrong).
Do you have to match the voltage of the Charger?
No, amps do not have to match, but the power supply or charger must be able to supply enough amps as required by the device being powered or charged. In practical terms, that means the amperage rating of a power supply or charger must match or exceed that required by the device it is connected to.
What’s the difference between input and output voltage?
Input amps/volts don’t matter in the slightest. Only thing that matters is the output and with laptop chargers, if the voltage is correct you can ostensibly move up to as much as 1.5x the amperage and not run into issues. Energy is never lost, it’s only converted, so the difference between the input and output is a measure of efficiency.
Why does the ” input ” amperage matter on a charging adaptor?
Energy is never lost, it’s only converted, so the difference between the input and output is a measure of efficiency. What’s ‘lost’ in translation almost always ends up as only 1 thing, heat.