MIL-B-18/12E
Inches
mm
Ltr
Min
Max
Min
Max
A
.469
.594
25.87
25.99
B
1.219
1.344
26.62
26.74
C
1.969
2.094
27.40
27.49
D
2.719
2.844
28.12
28.24
E
3.469
3.595
28.87
29.00
F
4.000
4.125
29.40
29.53
G
.375
.500
25.78
25.90
H
.8125
.938
26.21
26.34
J
2.750
2.875
28.15
28.28
K
---
3.313
---
28.71
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for general information only.
3. Voltage and polarity markings may be placed either on the top or front face of the battery.
4. Provide protective covering to prevent short circuit.
5. Marking to be in accordance with MIL-B-18.
FIGURE 1. Battery dimensions - Continued.
REQUIREMENTS:
Dimensions, marking, and configuration: See figure 1.
Nominal voltage:
-7.5 volts.
Tapped at:
-1.5 volts.
Tapped at:
-3 volts.
Tapped at:
-4.5 volts.
Tapped at:
-6 volts.
Usual number and type of cells: 5 "B" cells.
Usual cell connection: Series.
Terminals: Stud and nut and one wire lead.
Weight (maximum): 10 ounces.
Capacity tests: When the battery is tested in accordance with the methods of examination and test of
this specification, the minimum capacity-test requirements shall be not less than the minimum time
specified for SLD or SLT.
2