Fishman F1 AURA+ User Manual page 20

Power
Plug in the guitar, and F1 Aura + switches on. To conserve the battery, remove
the instrument cable from the guitar when the system is not in use.
The tuner display will fl ash at power-up to tell you the preamp is on.
Low Battery Indicator
When the tuner fl ashes "L" once every three seconds, you have approximately
1.5 hours before the battery is exhausted. Change it at the next opportunity.
20