Can you use 5v charger on 6V device

No, a 5v adapter is never recommended to power a 6v device. Because we need a voltage higher than that of the battery before it will charge properly.

Is 6V too much for 5v

yes, 6V is enough to trigger a circuit inside the PI that will short the 5V input, in order to save the 5V logic, which will otherwise be damaged. the shorting will then blow the PI's fuse!

Can I use 5v for 4.5 V

I've run many 4.5v devices off a 5v USB power supply without problem. Most devices can tolerate it fine, because a brand new AA battery can deliver in excess of 1.6 volts, so the device is designed with some leeway.

What happens if you charge a 6V battery with a 5V charger

Secondly, a lower voltage charger will never be able to produce enough power to fully charge your 6V battery. It might charge your battery enough for you to get your device jump started, but that's about it.

Can I charge 6V battery with 5V charger

It depends on the specific battery and charger in question. If the 5V charger is specifically designed for use with a 6V battery, then it should work just fine. However, if the charger is not specifically designed for use with a 6V battery, then it's possible that it could damage the battery or cause other problems.

Can I use 5V adapter in 3.6 V

A 5v charger for a 3.6v device is very likely, maybe even guaranteed to damage your device in a serious way. You should use the charger that came with it or find an identical one.

Can you use 5V for 3.3 V

The easiest way to convert a 5V analog signal to a 3.3V analog signal is to use a resistor divider with an R1:R2 ratio of 1.7:3.3.

Is it bad to charge a 6V battery with a 12V 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.

How many volts do I need to charge a 6V battery

6V batteries need to stay below 7.1V to avoid gassing, and typical charge voltages are 6.9V (float) to 7.5V (bulk charge).

Will 6V LED work on 5V

Your lamp will run slightly dimmer at 5V (compared to 6V), but it should be fine.

What happens if I use A 5V adapter on A 12V device

That said, I'd suggest against using a 5 volt supply for a 12 volt device. For a start, if it really requires 2 volts (or close to it), you will have a problem because 12 x 2 = 24 watts, while 5 x 2 = 10 watts, so the power supply is under-specced to do the job at maximum load.

Will 5V work with 3.3 V

A 3.3 V device can interface with a 5V device without any additional components. For example, a logic 1 (HIGH) from a 3.3 V device will be at least 2.4 V. This will still be interpreted as a logic 1 (HIGH) to a 5V system because it is above the VIH of 2 V.

Can I use a 5V adapter to power a 3V device

It could result in immediate failure that could result in smoke or even fire. Other times, it results in a shortened life of the appliance. Very rarely you will find that this works, but only if the difference is small, and usually only on simple appliances or products.

Can I use a 5V adapter for 3v

It could result in immediate failure that could result in smoke or even fire.

Can I use a 5V power supply on a 12V device

That said, I'd suggest against using a 5 volt supply for a 12 volt device. For a start, if it really requires 2 volts (or close to it), you will have a problem because 12 x 2 = 24 watts, while 5 x 2 = 10 watts, so the power supply is under-specced to do the job at maximum load.

What happens if I use a 5V adapter on a 12V device

That said, I'd suggest against using a 5 volt supply for a 12 volt device. For a start, if it really requires 2 volts (or close to it), you will have a problem because 12 x 2 = 24 watts, while 5 x 2 = 10 watts, so the power supply is under-specced to do the job at maximum load.