Yes, it charges from the magneto.
The battery is kept charged by a generator or magneto when the engine is running. It is located under the flywheel.
Most lawnmower batteries will be badly abused by this and it will be quite expensive in gasoline. A lawnmower battery will normally take 8 hrs (or so) to charge. Forcing them to charge faster, like off your car, will harm it.
Yes.
can a 12v lawn mower sealed battery be charged with 12v battery charger use on cars
Charge engine from battery? Rephrase your question as it makes no sense.
Weak battery, or starter going bad.
Follow the positive battery cable to the engine, it is what the red cable attaches to.
As long as the battery in the lawnmower is a 12 Volt battery you will be fine.
Start the engine up. The engine will rotate the pulley on the alternator and charge the battery.
The ideal voltage requirement for a lawnmower battery is typically 12 volts.
No, the alternator recharges the battery. Of course the alternator is turned by the engine.
Yes, a lawnmower can run on a bad battery if it has a pull-start or manual start option, as these methods do not rely on the battery. However, if the lawnmower is electric or requires the battery for ignition, a bad battery will prevent it from starting. In such cases, replacing or recharging the battery is necessary for proper operation.