This depends on the mower. With out knowing the make and model of the mower so I can look up the type of battery this question can not be answered
12 volt
Yes. Just make sure to use a battery of the same voltage.
The apmeres depend on the resistance of the circuit. The battery will be a certain voltage, and dividing the voltage by the resistance gives you amperes. V = I*R
Provided the charging system on the mower engine is operational, a small amount of charging voltage will be supplied to the battery during use.
Check voltage on battery 12 volt you should uses a 12 volt 2 amp battery charger connect red (positive) to the + side of battery and the black (negative) to the - side of the battery.
with a kohler regulator tester
i dont see why not.
Magnetos
probably
the magneto
It should be 12 volt.
A battery float charger is intended only to keep a fully charged battery from losing its charge. It will NOT work to charge a battery that is discharged or damaged. Check the voltage of the battery to be charged. Do not use charger if the battery voltage is less than 9.6 volts.