# Can I use 18V adapter for 12V?

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 a 19v power supply on a 18V?

Yes should be ok just,as you should try and keep to less than 5% difference if possible. Make sure the power output is equal to or greater than the 18V one.Jan 20, 2015

Are all DC power cords the same?

Each AC/DC power adapter is specifically designed to accept a certain AC input (usually the standard output from a 120 V AC outlet in your home) and convert it to a particular DC output. Likewise, each electronic device is specifically designed to accept a certain DC input.

How do I know what size DC plug I need?

Listing of DC coaxial connectors

Connector size is often listed in the format OD (outer diameter) × ID (inner diameter) × L (length of barrel) and expressed in millimeters. Designations may vary between manufacturers. Coaxial plugs that have a male center pin will have another measurement, Center Pin Diameter (CPD).

## Can I use 18V adapter for 12V? – Related Questions

### Is a computer charger AC or DC?

A power supply for electronic devices. Also called an “AC adapter” or “charger,” power adapters plug into a wall outlet and convert AC to a single DC voltage. Computers use multiple DC voltages, and the power adapter is the external part of the power supply for a laptop.

### Is my wall outlet AC or DC?

AC – Alternating Current
When you plug things into the outlet in your house, you don’t get DC. Household outlets are AC – Alternating Current. This current has a frequency of 60 Hz and would look something like this (if you plotted current as a function of time).

### Do laptops run on DC?

Laptops work on DC power, and the battery provides it that. DC stands for direct current. It is a one-directional flow of electric charge. On the other hand, AC stands for alternating or alternate current.

### Can I use 9V adapter for 12V?

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.

### Can I use A 9V power supply on A 12V keyboard?

It’s unlikely that you’ll damage the keyboard but the voltage is low so it probably won’t work. You’ll need to check the polarity of the plug is correct.

### 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.

### Can you charge A 12V battery with A 9V charger?

Similarly, you can charge a 9V battery with a 12V charger, and we show it in more detail below with Lithium-ion and NiMH batteries . The 9V li-ion battery is made of two 3.6V cells lending it a nominal voltage of 8.4. To safely recharge it you need a voltage source of 8.4V.

### How many amps do I need to charge a 12 volt battery?

Most battery manufacturers recommend sizing the charger at about 25% of the battery capacity (ah = amp hour capacity). Thus, a 100 ah 12 volt battery would take about a 25 amp 12 volt charger (or less). Larger chargers may be used to decrease charge time, but may decrease battery life.

### Can a 6 volt battery be charged with a 12 volt charger?

This will run your battery dry and create a thermal runaway scenario, which is very dangerous. Again, some people use a 12V charger to get their 6V battery jump started, but it is never advisable to use a 12V charger to try to fully charge your 6V battery.

### Can you use a 12 volt charger on a 8 volt battery?

Can an 8-volt Battery be Charged With a 12-volt Charger? Yes, you can use a 12-volt charger to charge an 8-volt battery. Usually, the 12-volt charger will come with more output power than the 8v battery itself.Nov 20, 2021

### Will a 6 volt charger charge an 8 volt battery?

Charging an 8 volt battery from a 6 volt charger should work as long as the charger output voltage is higher than the battery voltage. That should work on a “dead” battery, but depending on how well the charger holds to its “stated” output voltage, it may not charge an 8 volt battery up to full voltage.

### Can I charge my golf cart with a car charger?

Golf carts usually come with their own charger, however a car charger can also be used to charge a golf cart. The trick is matching the voltage of the charger to the voltage of the batteries.

### Will a 6 volt generator charge a 8 volt battery?

Depends on what it goes in. If the machine has an actual voltage regulator, it needs to be adjusted to charge an 8 volt battery. A 6 volt battery needs 7.4 volts to charge, an 8 volt battery needs the generator to put out about 9.5 volts to charge.Mar 30, 2017

### Can I use a 12 volt battery on a 6-volt system?

Yes, you can use a 12-volt battery on a 6-volt battery. However, you will need to make some adjustments to the wiring system and perhaps the converter to get the best results. Note that if a Power Wheels car uses a 6-volt battery, chances are most of the electronic components are rated 6 volts.

### Do they make an 8 volt battery?

8 Volt Deep Cycle Batteries | U.S. Battery Mfg.

### Can you put a 8 volt battery in a 6-volt tractor?

Try an 8-volt battery

(The size of the battery box may be a consideration if you want it to remain stock). Such a battery could cure sluggish starting 6-volt tractors. If you go to an 8-volt battery, you’ll need to adjust the tractor’s regulator to kick up the charge voltage, Jim advises.

### Is an 8 volt battery better than a 6 V battery?

8-volt batteries have a higher depth of discharge percentage than 6-volt units, which means they will require more charges during their lifespan. Resulting in a shorter lifespan than a 6-volt unit. On average, an 8-volt pack will discharge by 44% if running for 80 minutes.