Can I use a 7.5 volt adapter on a 9 volt device
You should never use a significantly higher voltage rating adaptor on any kind of electrical device. If you do so you are risking damaging the equipment and anything else that you might have plugged into it.
Is it OK to use higher voltage adapter
An AC adapter supplying electricity at a higher voltage than required will cause the connected device to run hotter. Sending power at a higher voltage will also shorten the lifespan of the device and may fry its internal circuits. Using an AC adapter with a different current rating can be an issue.
What size is a 9V adapter
5.5 mm*2.1 mm
9V AC/DC Power Supply Adapter 500ma (0.5 amps) 5.5 mm*2.1 mm Tip (5.5mm OD X 2.1mm ID) – AC to DC Electric Transformer Inverter for 9-Volt DC Electronic Devices Under 0.5a Slim Wall Plug & RED LED UL.
Can I use 5V adapter instead of 9V
Can I use a 5V adapter for 9V Simply No. Your device will probably be burnt. You will have to step down the voltage using a DC to DC converter or by using a specific resistor.
Can I use a 7.5 V charger on a 6V battery
If your device only takes 6-6.5V then using a 7.5V supply could well destroy the circuitry in the device and make it unusable.
Is it OK to use 12V adapter for 9V router
It might work depending on whether there's sufficient additional voltage regulation inside your router. But the adapter you're considering using puts out a higher voltage than the original, 12v versus 9v, and stands a good chance of burning up your router with higher current than intended. (Ohm's law says I = E/R.
Can I use 12V adapter for 9V
You shouldn't. Many electrical gadgets have extremely delicate constructions that cannot withstand even a very little voltage that is higher than what is recommended. Such as most of the time, a 9V guitar pedal cannot be powered by a 12V adaptor.
Can I use a 6V adapter for 9V
Nope. 6V will not be enough power for a 9V pedal. And 10V or 12V is too much and may break it.
Is it OK to use 12V adapter for 9V
Using a higher-rated power supply on a device is hazardous. It can damage the functionality of the device in a blink. It is never suggested to do so. Thus a 12V power supply is not compatible with a 9V.
Can I run a 9V device on 5V
In general, connecting a 9V supply to 5V device could damage it immediately, or in long term, but it is impossible to say without seeing the schematics of the device how much excess voltage it can handle. However, you are using USB devices, so the above does not apply.
Can you charge a 9V with a 5V charger
You would not be able to charge a 9V with a 5V source. You can still charge that battery till 5V but once you cross that current will start flowing from the battery back to the source.
Can you convert 5V to 9V
For 5V to 9V, the easiest way is to connect each signal to the base of an NPN transistor via a suitable resistor (say 10K) with the emitter connected to the common ground for both logic levels, and the collector connected to +9V via a suitable resistor (say 10K).
Can you use a 7.5 V for a 6V
No. The supply would not be able to provide enough current and would likely overheat.
Can I use a 6V adapter for 7.5 V
The short version: Voltage (V) should always be the same for both adapter and device. Polarity (plus on the left side or plus on the right side) should always be the same for both adapter and device. Current (A or mA) of the adapter should not be lower than the current of the device but may be higher.
Can I use 12V 1A for 9V 1A
No, it is not recommended to use a 12V 1A DC power adapter to power a device rated for 9V. The voltage rating of a power supply is important and should match the voltage rating of the device.
Can I use 12V adapter for 9.5 V
Is it safe to use an adapter that has higher voltage than what is required by the device being powered by it No. Using an adaptor with a higher voltage than the device being powered is risking damage to the device.
What happens if I use a 12V adapter on a 9V router
If you use one with significantly more voltage (and 12v is a full third more than 9v) then you might burn out your device.
Can I charge 7.4 V battery with 9V charger
USB is 5V; not high enough for charging a 7.4V lithium battery. That's a 2S battery which should be charged with a dedicated 2S balanced charger for safety. Such a charger will need a supply of at least 8.4V, typically 9V, able to handle the required charging current.
Will a 7.5 V charger work on a 6V battery
Hi, . . If it is a lead-acid battery, or Ni-Cad etc. , then yes you could, but you must disconnect when the battery has got to 6.8V.. . Which, depending on how your charger works, could be sort of 2 – 5 hours. . . . But Do NOT try that with a Lithium battery, it could explode and or catch on fire.
Can you use a 6V adapter for a 9V device
Yes you can! the thing is you need voltage regulator which converts 6V ,1.5 A to 9V , 0.6A, however this will drain battery faster it has many other reasons.
What happens if I use a 12V adapter on a 9V device
Using a higher-rated power supply on a device is hazardous. It can damage the functionality of the device in a blink. It is never suggested to do so. Thus a 12V power supply is not compatible with a 9V.
Can I use a 9V charger for a 7.2 V battery
A 9V adaptor would over-charge the pack, quickly damaging either the adaptor or the battery.
Can I use 7.5 V instead of 6V
If your device only takes 6-6.5V then using a 7.5V supply could well destroy the circuitry in the device and make it unusable.
Can I charge a 6V battery with a 7V charger
Nominal voltage is one specified for a battery, eg 6V in your case. In your case 6V could be, usually is, for Lead Acid battery. Such Lead Acid battery has 3 cells each having nominal voltage of 2V while max charging voltage is 2.3 – 2.5V depending how fast charging is. So, in your case you could use 7.2V for charging.
Can you use a 7.5 V charger for 6V battery
The current is only relevant to how "well" your device deals with not getting enough power. If your device only takes 6-6.5V then using a 7.5V supply could well destroy the circuitry in the device and make it unusable.
