Garmin 220 Guida Utente

Getting Started

The Astro 220 operates on two AA alkaline, lithium 

or NiMH batteries (not included). See 

 for 

information on setting the battery type.

1.  Turn the D-ring ¼ turn counter-

clockwise and remove the battery 

cover.

2.  Insert the batteries, observing the 

proper polarity. 

3.  Reinstall the battery cover.

Remove the batteries from your 

Astro 220 when you do not expect to use 

the unit for several months. When you 

remove the batteries, data is not lost.

1.  Place the small loop of the wrist strap through the slot 

on the back of the unit.

2.  Route the strap through the loop and pull the end of 

the strap.

See 

page 57 

to install or remove the microSD data card in 

the battery compartment.