No it’s not safe for the most of cases. There are two reasons. Since newer adapter has more terminal voltage therefore device is liable to draw more current and bad thing is that newer adapter is ready to provide more current.
What happens if I use a 9V adapter on a 12V device?
Plugging in an adapter with a lower voltage would not generally harm the unit. But if the polarity is reversed then it probably would cause damage and that may be what has happened. It may just have blown a fuse.
Can I use 9V adapter for 12V?
What is this? When a pedal says “9 – 18V”, it means it can accept voltages anywhere within that range. That means you can use a 9V power supply, a 12V supply, or an 18V supply without any problems.
What happens if I use a higher voltage adapter?
Voltage too high – If the adapter has a higher voltage, but the current is the same, then the device will likely shut itself off when it detects an overvoltage. If it doesn’t, it may run hotter than normal, which can shorten the device’s life or cause immediate damage.
What if I connect a 5V power supply to a device rated at 12V?
If a device rated for 5v is connected to a 12v supply, some of the components may get burnt or damaged due to over current.
Can I use a 9V power supply on a 12V motor?
The 9V batteries are weak because the other half of the story is how much current they can supply.It’s possible to run a 12V motor on 9V, but it will run slower and with less Torque.
Can you use a 14v adapter for a 12V device?
You’ve not mentioned what the device is, but I’d say the answer to your question is: Yes you can. 14 V is not excessively high so all should be fine. More over, once you connect the device to the adapter (start drawing current), the voltage will probably drop somewhat, depending on how much current your device draws..
Can I use 12V adapter for 7.5 V?
1 Answer. You should never use a significantly higher voltage rating adaptor on any kind of electrical device.
Can I use 18V adapter for 12V?
18V would be risky, I would not try to plug a 12V device into an 18V battery. But if you happen to have 18V for whatever reason, you can always use a DC-DC converter. I use car-plug type adapters for all my 12v equipment because they have fuses in them.
Can I use 10V adapter for 5V?
NO! you cannot use a 10V charger instead of a 5V for your mobile. Since the mobile is rated to be used with 5V charger, using one with 10V can be hazardous and may also cause irreparable damage to mobile.
Can I use a 9 volt adapter on a 6 volt device?
No. The power supply is capable of producing one ampere, if the device draws that much, but it won’t force that much current through the device. As long as the voltages are matched, there’s no harm in using a power supply with a higher capacity (better higher than lower).
Can I use a 7.5 V adapter for 9V?
However if the device is relying on the regulated voltage from the adaptor and has no internal circuit to control or limit overvoltage, then that 9v adapter may damage your device. That said, there are 7.5v devices designed with tolerances wide enough that the 9v you provide it won’t make any difference at all.
Can you use a 19V adapter on a 14v device?
No you should not be stressing the 14 volt devices with 19 volts. It will cause the 14 volt power converter to overheat.
Can I use 15V instead of 12V?
Onus : Assuming the polarity is correct, plugging in a 12V input to a device requiring 15V won’t do any damage, however if you undervolt an amplifier, you may get clipping or other distortion.
Can I use 19V charger for 12V?
Any device that was designed to run at 12V is likely to be fried by 19V. It might catch fire, even though it’s not very likely. You must have an equal or higher current rating in order to use an AC adapter.
Can I use 12V adaptor on 8v?
No, it will cause too much current draw at 8v, when it’s requirement is 12 V +/- 10%. So, anything between 8.8 V and 13.2 V would be OK. But , 8.0 is too low, and would cause over heating of the DC to DC converters built in to the devices that use 12V.
Can I use 8v adapter for 9V?
If the old supply put out 8 V and 2.6 A and the equipment says it wants 8 V, then the obvious answer is a power supply that puts out 8 V and 2.6 or more amps. The equipment might be OK with 9 V, or not.
Can I use 12V 1.5 A for 12V 2a?
Yes, there will be no problem. As long as the voltage of 12 Volts is same, it will work perfectly fine on a 12 Volt 1 Amp power supply as it would on a 12 Volt 0.17 Amp power supply.
How do you reduce voltage from 18V to 12V?
To reduce the voltage variation you could configure two resistors as a voltage divider. The lower shunt resistor (R2 in the circuit below) helps to hold the voltage down under light load, and permits a lower value for the upper series resistor (R1) which reduces voltage drop under heavy load.
Can you use a 12V battery in a 18V drill?
The 12v and 18v batteries are not interchangeable.
Can I charge an 18V battery in a 14V charger?
No. All DeWalt chargers are designed to only charge that particular battery so you’re 14V battery won’t fit the charger. Plus, charging a 14V on an 18V charger will likely result in an explosion. 0 of 1 found this helpful.
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