There is a charging system that is under the flywheel. It is a magnetto system.
Mower has a generator, which is turned by the engine. When engine is running, generator produces electricity to charge the storage battery.
I'm assuming its a riding lawn mower of some type. Our own lawn mowers of this type have an alternator in them that keeps the battery charged
A stator. A magnet that rotates with the crank shaft
yes.
the magneto
12
totally
No, you can charge it on the mower and you do not have to remove it or disconnect the cables.
Dead cell in battery, loose of corroded battery connections, or the charging system on the mower engine is defective.
12 volt
the same way a car
Walmart, Autozone. O'reilly's, Advance,,,,, etc.