Question about Garmin zūmo 595LM motorbike navigation system

According to the manufacturer, approx. 1.5 to max. 2 hours equivalent device with the same battery type.

Since I only use the device when connected - permanently connected to the motorbike battery - and it is charged while riding, I cannot say how long the battery will last (consumption-dependent / use/on/off and search). Perhaps Garmin Switzerland has more information on this.