Most lawn tractors possess one of two types of charging systems to help keep the battery up and running. One type of charging system is the belt-driven alternator, typically mounted on the engine. As the belt turns the alternator, the alternator continually generates power to recharge the battery.
How does a riding mower keep the battery charged?
Alternators power the small engine while it is running, keeping the battery charged by circulating power back through the system. For the easiest method to check your alternator, simply turn on the headlights to your lawn mower or outdoor power equipment.
How does a Briggs and Stratton charge the battery?
The charging system for the Briggs and Stratton engine begins with the battery, which supplies voltage to the starter. Once the engine runs, the alternator takes over the electrical delivery, supplying voltage to the spark plug and sending extra current to the battery for recharging.
How do I know if my riding mower is charging my battery?
The simplest test is to put a Volt Meter on the battery posts before you start the engine to see what the current charge level is. Then check the voltage at the battery posts while the engine is running at full throttle.
Why does my riding mower battery keep dying?
Your lawn mower battery can keep draining when you battery cables are loose or your connections have become dirty or corroded. A faulty charging system, bad battery and leaving the ignition key in the on position can also cause your battery to drain.
Does a riding mower have an alternator?
Reel lawn mowers don’t have an engine at all, so they do not have an alternator. Powered push lawn mowers have a motor, but it does not contain an alternator. Riding mowers do have alternators in their engines.
How do I identify my Briggs and Stratton alternator?
Briggs & Stratton alternator systems are easily identified by the color of the stator output wire(s) and the connector.
How long does it take for a lawn mower battery to charge?
If you are using a 10-amp charger, your mower’s battery should charge in approximately one hour. Of course, connecting the battery to a lawn mower battery charger that has fewer amps may extend charging time.
Will a riding mower run without a battery?
Unfortunately, most riding lawnmowers need a battery in order to function correctly. Your lawnmower has many attributes that will not function unless your battery is in working condition.
What does the solenoid do on a riding mower?
The cylindrical solenoid is a low-amperage relay that safely completes the high-amperage electrical connection between the battery and starter motor when the ignition key is turned. A bad solenoid can deny electricity to the starter motor and prevent engine startup. But other basic problems may also exist.
How does a lawn mower alternator work?
Alternators power the small engine while it is running, keeping the battery charged by circulating power back back through the system. For the easiest alternator test, simply turn on the headlights to your lawn mower or outdoor power equipment. Then, turn off the engine. If the lights dim, the alternator works.
How do I know if my lawn mower battery is bad?
Read the meter. If it has 12.7 DC volts or higher, the battery is good and something else is causing your starting problem. If the voltage reading is lower, the battery is discharged to some degree but may perk up after charging. If it reads 11.5 volts or lower, the battery is most likely sulfated and needs replacing.