About the GHS 20 Battery
The GHS 20 contains a Lithium-ion battery
that charges when the handset is placed in
the properly installed cradle.
An LED above the Channel knob on the
GHS 20/20i indicates the charging status:
• Off—Not charging
• Solid—Charging
• Slow blink (1 blink/second)—The battery
temperature is outside the safe charging
temperature
(page
• Fast blink (6 blinks/second)—The battery
cannot charge, and must be replaced.
Installing the GHS 20/20i
Charging Cradle
1. Determine a location to mount the
charging cradle where the cradle can be
connected to the boat battery.
2. Using the cradle as a template, mark the
two screw locations on the surface.
3. Use a ⅛ in. (3 mm) drill bit to drill the
two pilot holes.
4. Use the included 25 mm M4.2 × 1.4
panhead screws to attach the cradle to the
surface.
EN-4
7).
5. Route the power cable from the cradle to
the boat battery or fuse block.
If it is necessary to extend the wires, use
18 AWG wire.
6. Connect the red wire to the positive
terminal on the battery or fuse block, and
connect the black wire to the negative
terminal.
Installing the GWH 20
NOTE: Metal and other dense materials may
inhibit communication between the GWH 20
and the GHS 20. Test the location to make
sure the GWH 20 reliably communicates
with the GHS 20 everywhere you plan to use
it on the boat.
1. Determine a location to mount the
GWH 20.
If it is necessary to extend the GWH 20
cable, 5 m and 10 m extensions are
available from your Garmin dealer.
2. Using the GWH 20 as a template, mark
the two screw locations on the surface.
GHS 20/20i Installation Instructions