Your 12v adapter would only be able to raise the battery voltage to 12v, but to charge a car battery fully you would need to raise the voltage to 13.8v. The 16v adapter
would raise the voltage too high
and could cause damage.
Can I use 12V for 18V?
Since 12V lead-acid batteries were originally designed for cars, there is a lot stuff that runs this way. 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
.
Does 12V work on 15V?
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 a 9V power supply on a 15V?
The available current-result will not change, i.e. using two 9V 200mA (center-pin negative) sources will result in an output from the SB-15 of 15V 200mA (center-pin positive).
Can I use 12V for 20V?
DEWALT’s
12V MAX* batteries work the same way; they just generate less voltage than the 20V MAX* batteries. They also weigh less.
Can I use a 10v adapter for 12V?
Can I use 12v/1.5amp adapter in place of 10v/1.2amp adapter? – Quora.
No it’s not safe for the most of cases
. … 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.
Can I use a 19V adapter 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 a 24V power supply on a 12V?
For a 12V LED strip, the voltage difference simply
just needs to be 12V
for it to operate as intended. Simply connecting 24V to the 12V LED strip copper pads will obviously cause the LEDs to burn out due to over-voltage.
Can you use a 12V 2a charger on a 12V 1.5 a device?
Same voltage more amp capability is fine, same volts lower amp capacity is bad. Power supplies and adapters are rated at what they can supply, your equipment is rated by what it will draw.
Yes
.
Can I use 1000ma instead of 500ma?
If the device requests 500ma and
the power supply can handle up to 1000ma
, it’s fine. The device will only draw what it needs and no more. … If the device demands more ma than the power supply can deliver, it will force the power supply to deliver it anyway thus frying the power supply.
What is the difference between 12v and 20V?
The main difference between 12v, 18v, and 20v tools is their power; the higher the voltage of the tool means the more influential the tool is, so here the voltage is
12, 18, and 20 volts
, indicating the 12v tool has less power compared to the 18 and 20-volt tools.
Do more volts mean more power?
In an electrical system,
increasing either the current or the voltage will result in higher power
. … So, using a higher voltage to reduce the current can make electrical systems more efficient. The efficiency of electric motors also improves at higher voltages.
Does a higher Ah battery give more power?
In general,
higher amp hours mean more runtime
and higher voltage means more power. Read more about the relationship between voltage and amp-hours.
What happens if I use the wrong voltage adapter?
If you’re lucky, nothing will happen, and no damage will occur. If you are unlucky,
your device will be damaged
. There’s a middle ground, too. Some laptops and other devices include polarity protection, which is essentially a fuse that burns out if you use the wrong polarity.
What happens if you plug a 12V into a 9V?
You can’t use a 12V adapter to power a 9V guitar pedal. A
pedal that only handles 9V can be destroyed by using a 12V adapter
. It’s possible for a power supply to ruin your pedal even if you get the voltage right.
Can I use 4.5 V instead of 5V?
They’re
very stable
on the output voltage and can kick out an amp or so. It’ll work fine.
