How Long Should A Motorcycle Battery Hold Its Charge. Things like extreme hot or cold weather or letting your battery sit for a long period of time without proper maintenance can have an effect on the lifespan and overall health of your battery. A 12 volt battery typically should rest at 127 volts DC or so.
If you check out the manufacturers information about most modern motorcycle batteries youll find that most of the ones advertised as maintenance-free have a predicted lifespan of about three years. For example a fully charged battery at rest should be between 126 and 1275 volts. Voltage will go up if charging system is working.
Charging a motorcycle battery will take about an average of 4 to 24 hours.
For example a fully charged battery at rest should be between 126 and 1275 volts. If your battery is HOT STOP. The top charge should be for 20 24 hours at a constant voltage of 24 volts per cell. The alternator serves to charge the battery so that it has sufficient voltage the next time you need to start the engine.
