Precautions For Battery Storage - Yanmar 6LY3 series Service Manual

Battery Components and Functions
12/05

Precautions for Battery Storage

The life of a battery depends on the way it is
handled. After about 2 years its performance will
deteriorate and replacement will be necessary.
A battery will discharge about 0.5% per day when
not in use. It must be charged one to two times a
month while in storage.
Figure 12-9
Number of Days After Charging
Figure 12-9
If charging with the engine alternator is insufficient
because of frequent starts and stops, the battery
will rapidly lose power. Charge the battery as soon
as possible when it is used under these conditions.
6LY3 Service Manual
An easy-to-use battery charger is available from
Yanmar. Take proper care of the battery by using a
battery charger (Figure 12-10, (1)) and
hydrometer.
Figure 12-10
When the specific gravity drops to about 1.16,
charge the battery up to a specific gravity of 1.26
(24 hours).
0006353
Before putting the battery in storage for long
periods, charge it for about 8 hours.
© 2007 Yanmar Marine International
ELECTRICAL AND ECU
(1)
Figure 12-10
1 – Battery Charger
0006269
12-7