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Mercury 20 - Battery Installation - Electric Start Models

Mercury 20
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INSTALLATION
19
ob00504
a
b
c
a - Bolts (2)
b - Washer (2)
c - Locknut (2)
Battery Installation ‑ Electric Start Models
MOUNTING BATTERY
Follow the battery manufacturer's instructions carefully. Mount battery in the boat so it is secured against
movement, preferably in a battery box. Make sure battery is equipped with a nonconductive shield to prevent
accidental shorting of battery terminals.
NOTE: Electric starting outboards must have the battery cables connected to a battery whenever the engine is
running. Even if started manually, as damage to the charging system could result.
Battery Connections
CONNECTING OUTBOARD BATTERY CABLES
1. First, connect the red battery cable to the (+) positive battery terminal and then connect the black battery
cable to the (‑) negative battery terminal.
DISCONNECTING OUTBOARD BATTERY CABLES
1. First, disconnect the black battery cable from the (‑) negative terminal and then disconnect the red battery
cable from the (+) positive terminal.
ob00506
Propeller Selection
The propeller supplied with your outboard provides the best overall performance under average operating
conditions.
Alternative propellers are available for specific boating requirements. See your outboard dealer.

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