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.

Motorcycle battery voltage at idle.

Your charging system is putting out the necessary voltage to the battery during a running condition past idle. Battery is 12v agm only 1 month old. If lower than 12 4 consider getting a load test done. Your motorcycle s charging system check is complete.

It s not a heat issue since new amp shuts down only when voltage increases. That voltage you measure is the battery s no load reference voltage. During a normal ride a motorcycle provides about 13 14 or 15 amps while idling only provides less than 1 amp. 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.

Both old alpine amp and new amp are rated at 14 4 input voltage. Specs for the reg rec show 14 3 14 8 is normal voltages also there are also 2 ref rec on this bike. 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. 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.

It should be between 12 4 and 12 8 volts. At idle battery is showing 14 2 3 and 14 8 9 when throttled. You should see the voltage increase on your meter even further up to around to 14 4volts this will vary from bike to bike. Now push the starter button and watch what the voltage drops to.

Lithium batteries spring to mind immediately as a battery that has a different usage and test scenario.