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If multiple batteries are used, the
interconnecting jumper cables should be the
same AWG as those connected to the
inverter/charger.
If utilizing the echo-charge feature to
charge starting or auxiliary battery banks, use
12 AWG to make the connection between the
echo-charge output and the positive (+)
terminal post of the auxiliary battery. Each
output should be fused within 72 inches of the
battery with a 20 ampere fuse.
• Bolt the positive (+) battery cable with
3/8'' ring terminal to the positive (red +)
terminal assembly on the side of the inverter.
Tighten the battery terminal bolts to a torque
value between 160 inch-pounds and 180 inch-
pounds. Secure the cover on the positive
terminal (found in the accessory package)
before continuing the installation.
The negative (-) cable should be
connected directly to the negative post of the
house or auxiliary battery bank or the ground
side of a current shunt. Tighten securely.
The positive (+) battery cable must be
fused and connected to the positive post of the
house or auxiliary battery bank, or through a
selector switch to one or more battery banks.
A spark may be generated when the final
battery connection is made. This is normal; do
not be alarmed. However, do not make the final
connection in the presence of flammable fumes.
INSTALLATION
POSITIVE (+)
(Battery Cable Cover on)
NEGATIVE (-)
(Battery Cable Cover on)
POSITIVE (+)
(Battery Cable Cover off)
NEGATIVE (-)
(Battery Cable Cover off)
Battery Cable Connections
Auxiliary
or Start battery
Freedom Marine Inverter/Charger
10, 15, 20 1 echo-charge output
25, 30 2 echo-charge outputs
12 AWG
echo-charge 1
echo-charge 2
S