TM 5-3825-270-23&P
0027
STEP 5
Do batteries read 24.2 to 25.4 volts with multimeter?
WARNING
Remove all jewelry such as rings, ID tags, bracelets, etc., prior to working on or around
vehicle. Jewelry and tools can catch on equipment, contact positive electrical circuits, and
cause a direct short, severe burns, or electrical shock. Failure to comply may result in injury
or death to personnel.
1.
Set multimeter to measure voltage.
NOTE
Water distributor is equipped with two 12-volt batteries connected in series. Multimeter
measurements must be made from correct battery terminals to obtain 24-volt measurements.
2.
Connect red multimeter probe to positive battery terminal.
3.
Connect black multimeter lead to negative battery terminal.
POSITIVE
NEGATIVE
BATTERY
BATTERY
TERMINAL
TERMINAL
Figure 5. Battery Terminals - Step 5.
4.
Note multimeter reading.
NOTE
The following chart describes battery voltage characteristics when measured with a
multimeter. This chart can be used to further isolate and troubleshoot batteries that may be
cause of problem.
5.
Compare multimeter reading to chart.
Table 1. Battery State Of Charge Voltage Table - Step 5.
Percentage Of Full Charge
12 Volt DC System
24 Volt DC System
100%
12.7
25.4
