Motorcycle Battery Voltage At Idle

Your motorcycle s charging system check is complete.

Motorcycle battery voltage at idle.

If it keeps creeping down the longer it sits order a new battery or look for a parasitic drain in the bike. Now push the starter button and watch what the voltage drops to. If you ve got one refer to your battery manufacturer s recommendations batteries need both voltage and current but testing voltage is easy all you need is a multimeter also known as a dvom digital volt and ohm meter. During a normal ride a motorcycle provides about 13 14 or 15 amps while idling only provides less than 1 amp.

That voltage you measure is the battery s no load reference voltage. If lower than 12 4 consider getting a load test done. If so this is good. It doesn t matter if the bike starts or not what you re looking for is a voltage reading.

A healthy 12 volt motorcycle battery should maintain a range from 9 5 10 5 volts under the load for a good 30 seconds straight. Technically a motorcycle battery does charge while the motorcycle is idling though it does not provide as much amperage as when the motorcycle is at higher speeds. Battery is 12v agm only 1 month old. It s not a heat issue since new amp shuts down only when voltage increases.

Measure the battery voltage. Lithium batteries spring to mind immediately as a battery that has a different usage and test scenario. Your charging system is putting out the necessary voltage to the battery during a running condition past idle. Specs for the reg rec show 14 3 14 8 is normal voltages also there are also 2 ref rec on this bike.

Both old alpine amp and new amp are rated at 14 4 input voltage.