Thus, as long as you replace your power supply with one capable of providing as much or more amps than the previous, you’ll be fine. The device being charged may be damaged.The device may charge extremely slowly.The problem, of course, is the reverse: if your device needs 1.0 amps, but your charger is rated at only 0.5 amps, then any of several problems could result: If your device needs 0.5 amps to charge, and your charger is rated at 1.0 amps, only 0.5 amps will be used. A device being charged will only take as much amperage as it requires. The amperage rating of a charger or power supply is the maximum it can supply. Amperage Provided Versus Amperage Required Power Supply or Charger Amperage Rating Result Greater than the device’s requirement The amperage provided by your charger must match or exceed what the device being charged requires. Sidestep all those unknowns and make sure to get exactly the right voltage from the start. Some may tolerate a wide range of input voltages, while others are extremely sensitive to even the smallest error. If the voltage is off by enough, it can damage your device.Īnd here’s the problem: there’s no way to say what’s enough or too much. Depending on how different the supplied voltage is from what’s required, the device may simply fail, it may work “kind of”, or it may appear to work at the cost of a much shorter lifespan. Others, unfortunately, are not tolerant at all. Some devices are tolerant of variations and work just fine. It’s very important to get the right voltage. In your case, the old charger supplied 19 volts, so your replacement must also be 19 volts. When replacing a charger, this is easy to determine: it’ll be listed somewhere on the old charger. Specifically replacing the power supply for a laptop? Check out: Can I Use a Higher Wattage Power Supply With My Laptop?
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