Single Outboard - Mercury 225 Manual

IMPORTANT: Battery cable size and length is critical. Refer to
engine installation manual for size requirements.
The decal needs to be placed on or near the battery box for
future service reference. One 5/16 in. and one 3/8 in. hex nut is
supplied per battery for wing nut replacement. Metric hex nuts
are not supplied.
BATTERY CABLE CONNECTIONS

Single Outboard

eng
OUTBOARD INSTALLATION
NOTICE - DTS & OptiMax Engines
DO NOT USE DEEP CYCLE BATTERIES!
DTS (Digital Throttle and Shift) applications and
OptiMax engines must use a marine starting
battery with 1000 MCA, 800 CCA, or 180 Ah. rating.
IMPORTANT:
Battery cable size and length is critical. Refer to
engine installation manual for size requirements.
Place decal on or near battery box for future service
reference. 5/16" and 3/8" hex nuts supplied for wing
nut replacement. Metric hex nuts not supplied.
a
b
(-) (-)
13.5Nm (120 lbs. in.)
DO NOT
USE WING
NUTS
37-895387
(+) (+)
c
15496
121
3486
a - Red sleeve ‑
Positive (+)
b - Black sleeve ‑
Negative (–)
c - Cranking battery