Assuming you are misusing the term 'battery' when you should really write 'cell', 3V Lithium cells (button cells) are often used in wristwatches. Some computers and maybe smartphones use them to power their realtime clocks. It is possible that some hearing aids use them also, but many use Silver cells, which have a lower voltage.
3V is a convenient voltage that allows modern electronics, both digital and analog, to work in very low-power devices.
A 3 volt battery is a type of battery that produces a voltage of 3 volts. It is commonly used in various electronic devices such as remote controls, toys, and small gadgets. The most common types of 3 volt batteries are coin cell batteries and AAA or AA batteries.
With an invertor/rectifier or voltage multiplier.
Depends on the amperage of the batteries you are using. Both setups will give you 36 volts, but you will normally have a longer run time with six 6 volt batteries in series than three 12 volt batteries. That is why golf carts use 6 volt instead of 12 volt batteries.
You cannot do this. If it were a 36 volt charger you could connect three 12 volt batteries in series and charge all 3 at the same time. But this is a 32 volt charger which I have never heard of.
it needs 3 1.5 volt batteries
Add two 1 volt batteries in series with it.
A variable power supply has a control to adjust the DC output voltage from 0 to 12 volts. It is used for testing electric project's such as amplifiers and other electric devices. It can be used to replace other fixed voltages power supplies such as the srandard 3 volt, 5 volt, 9 volt and 12 volt units.
It seems reasonable providing your purchased batteries with enough current capacity and connect them in series.
Take 3 twelve volt batteries Run the + of battery #1 to the - of battery #2. Run the + of battery #2 to the - of battery #3. Use the + of battery #3 for your positive feed, and the - of battery #1 for your ground.
A cart that has batteries connected in series with one plus and one minus cables may have three 12V batteries connected with two jumpers, instead of twice as many 6V batteries with five jumpers.
Generally, there will be a 12+ volt rail, a 5+ volt rail and often a 3+ volt rail.
Not well - that combo would only give 36 volts.