Volvo Penta D1-13 Workshop Manual page 9

P0008397
47704383 06-2013 © AB VOLVO PENTA
Check battery voltage
Tools:
88890074 Multimeter
General
If battery voltage falls below 12.4 V*, the starter motor
will not be able to crank the engine at normal speed.
A fully-charged battery has a voltage on an open circuit
of around 12.7 V (depending on ambient temperature).
When open circuit voltage falls to 12.5 V, the battery is
half charged.
NOTICE! * Measured at the batteries.
Voltage measurement, check
1 Check that battery voltage is at least 12.4 V while
the batteries are not under load by using multi-
meter 9812519 to measure between the battery
terminals.
NOTICE! * Measured at the batteries.
2 Turn the main switch on.
3 Check that the voltage between the terminals B+
and B– on the starter motor is the same as the
battery voltage.
30-0 General
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