TM 10-6140-200-14
Table 2-2. Specific gravity temperature
ampere-hour batteries, and 3601, 3602, etc., for all 36
correction chart
volt 750 ampere-hour batteries etc.
Electrolyte Temperature
Point Correction
(Degrees Fahrenheit)
b. Record specific gravity of the pilot cell or cells
110
+11
before and after each charge. Pilot cells should be selected
107
+10
from those nearest the center of the battery and
104
+9
101
+ 8
identified by differently colored vent caps. They should
98
+7
be representative of the balance of the cells in the
95
+6
92
+5
battery.
89
+4
86
+3
83
+2
+1
80
c. Record the number of cycles on a cumulative basis
77
No Correction
plus maintenance and repair information. Note any
74
-1
irregularities. The use of a "Battery Cycle and Main-
-2
71
tenance Record" form such as shown in Figure 2-6 is
68
-3
68
-4
recommended. If variations in specific gravity readings
-5
65
exceed 20 points (.020) and on-charge voltage, after an
59
-6
56
-7
equalizing charge, varies by more than .15 volts, contact
53
-8
the manufacturer's service representative.
50
-9
47
-10
-11
44
-12
41
d. When the battery is new, and on at least an annual
-13
38
35
-14
basis thereafter, read and record the specific gravity and
32
-15
open circuit voltage for all cells of the battery.
Battery Cycle
Identification
Battery Number
and Maintenance Type
Amp. Hr. Capacity
Record
Date in Service
Serial No.
Voltage
Date out Service
YEARLY
ACCUM.
NOV
DEC
OCT
TOTAL
YEAR
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
DATE
Battery Repair and Capacity Tests
%Capacity Delivered
Date
Repair or Comments
Labor Hrs.
Parts Cost
Total Cost
Figure 2-6. Battery cycle and maintenance record card
2-8
