Battery Precautions; Wire And Cable Routing - Mercury T30 User Manual

WIRING AND BATTERY INFORMATION

Battery Precautions

An operating or charging battery produces gas that can ignite and
explode, spraying out sulfuric acid, which can cause severe burns.
Ventilate the area around the battery and wear protective equipment
when handling or servicing batteries.
When charging batteries, an explosive gas mixture forms in each cell.
Part of this gas escapes through holes in vent plugs and may form an
explosive atmosphere around battery if ventilation is poor. This
explosive gas may remain in or around battery for several hours after it
has been charged. Sparks or flames can ignite this gas and cause an
internal explosion which may shatter the battery.
The following precautions should be observed to prevent an
explosion:
1. Do not smoke near batteries being charged or which have been
charged very recently.
2. Do not break live circuits at terminals of batteries because a spark
usually occurs at the point where a live circuit is broken. Always be
careful when connecting or disconnecting cable clamps on
chargers. Poor connections are a common cause of electrical arcs
which cause explosions.
3. Do not reverse polarity of battery terminal to cable connections.

Wire and Cable Routing

• Route the trolling motor wires on the opposite side of the boat from
other boat wiring.
• Sensitive electronics, such as depth finders, should be connected
directly to the main engine battery. Single battery systems require
separate connection cables.
WARNING
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