On would use a 12 volt battery for a lot of things. For example, a lot of Fisher Price toys and games, power wheels vehicles have a type of 12 volt system.
can 6 ,12 volt battery be wire to make in to one 24 volt battery for solar use in home
No, you would be applying 24 volts to the 12 volt battery.
No
No, it will overcharge the 6 volt battery.
No. You can only charge one 12 volt battery at a time or two 6 volt batteries wired in series at a time if you want to use that 12 volt charger.
No it will not work
No, the battery will be overcharged and battery damage will occur if it is done.
No.
No
12 volt battery
a 9 volt battery would make it go faster because of the amount of energy going into the boats main power which turns the propeller so a 9 volt is the one to use!!!!
Absolutely not! It is a 14 volt drill. Use a 16 or 18 volt battery will destroy the drill in short order. It will run but not for long.