TM 11-6140-203-14-3
2-8. Weight and Dimensions of BB-501/U
Battery, Storage BB-50I/U (NSN 6140-00-134-0850) weighs approximately 32.5 pounds. The battery is 7 3/16
inches long, 63/4 inches wide and 7/16 inches high. Refer to figure 2-7 for parts location and BB-613/U (cell)
layout. The BB-613/U (cell) (NSN 6140-00-134-0849) is 5 3/4 inches high, 2 inches wide, and 1 inch deep and
weighs 11/8 pound.
SECTION IV. BATTERY, STORAGE BB-651/U
Temperatures between
Type ................................
Nickel-cadmium.
0F. (-17.8C.) and
Number of cells ...............
20 (four 5-cell monoblocks).
-40F. (-40C.) ......... 1.1amperes for approximately 3
Type of cell .....................
BB-547/U (5 cell monoblock).
hours.
Electrolyte ......................
Potassium hydroxide (KOH), 31
Voltage:
percent (by weight) in distilled
Open circuit .............. Approximately 26 volts(battery
water.
fully charged, with a 24-hour
Operating Range:
rest period).
Temperature ............. -40F. (-40C.) to 125F.
At rated load of 1.1 amperes:
(51.7C.).
Temperatures between
Atmospheric pressure..... Sea level of 10,000 feet (20.6
75F. (23.9C.) and
inches of mercury 0.1 inch).
85F. (29.4C.) ........ 24 volts for approximately 5
Storage:
hours.
Duration ................... Unlimited, regardless of state of
Temperatures between
charge.
0F. (-17.8C.) and
Temperature .................... -65F. (-53.9C.) to 165F.
-40F. (-40C.) ......... 23 volts for approximately 3
(73.90 C.).
hours.
Atmospheric pressure..... Sea level to 50,000 feet (3.4 inch
Intercell connector:
of mercury 0.1 inch).
Material ..................... Nickel.
Electrical Data: ................
Quantity ................... 18.
Rating ..................... 5.5 ampere-hours.
Cell plate materials:
Current at rated load of 1.1
Positive plate (charged)..Nickel oxide.
amperes:
Negative plate (caged)......Cadmium.
Temperatures between
Separator material.............Nylon cellophane sandwich.
0 F. (-17.8C.) and
Monoblock case materials....Acrylonitrile-ButadieneStyrene
-
125 F. (51.70 C.)
1.1 ampere for approximately 5
(ABS).
hours.
2-7