Yes, no problem at all going to a larger ampacity of wire. Larger size wire yes, smaller size wire no.
There are many different brands of auto polisher. Some of the value brands of auto polisher include the Cosmo Cordless, Halfords 240 volt and the Kinzo 8e925ep.
#16 <<>> To load an extension cord to 1725 watts depending on the length of the cord, the bare minimum should be #14. A better size cord and my recommendation would be a #12 wire size extension cord.
Yes, you can replace a 10 amp 125 volt extension cord with a 10 amp 250 volt extension cord. The key specification to match is the amperage rating, which should be the same. The higher voltage rating of the replacement cord will allow it to be used with both 125 volt and 250 volt outlets safely.
If the device you are powering requires 7 amps of power, then no. You will need to find a replacement cord with 7 amps. Check the power input requirements of the device to find out.
no
Yes. The cord only transmits the power. Whatever that goes in is what comes out.
Yes, there is a difference. The 9-volt 2 amp power cord can handle a higher current flow compared to the 9-volt 200mA power cord. This means it can power devices that require a higher current draw without being damaged.
4.5 volt battery sold only in Russo
12 volt
You need an international battery.
Depends on the size of the circuit which you did not list.