TM 11-6140-203-14-3
Figure 2-3. Battery, Storage BB-422/U, Cell Layout
SECTION II. BATTERY, STORAGE BB-429/U
2-4. Tabulated Data for BB-429/U (fig. 2-4)
Temperatures between 0 .
F
Type ................................ Nickel-cadmium (vented).
(-17.8C.) and -40F.
Number of cells ............... 5
(40C.) ..................... 2.8amperesfor approximately
3 hours.
Type of cell...................... B418/U
Electrolyte ....................... Potassium hydroxide (KOH), 31
Under rated load (2.8 amperes):
percent (by weight) in distilled
Temperatures between 75
water.
F. (25C.) and 85F.
Operating range:..............
(29.4C.)................... 6.0 volts for approximately 5
Temperature ............. -65F. (-53.9C.) to 125F.
hours.
(51.70 C.).
Temperatures between 0F.
Atmospheric pressure ....Sea level to 10,000 feet (20.6
(-17C.) and -40F.
inches of mercury 0.1).
(-40C.) .................... 5.7 volts for approximately 3
Storage:
hours.
Duration.................... Unlimited, regardless of state of
Intercell connector:
................................ . charge.
Material .................... Nickel-Plated copper.
Temperature ............ -65F (53.9C.) to 165F
Number ..................... 4.
(73.9C.).
Cell plate materials:
Atmospheric pressure ....Sea level to 50,000feet (3.4
Positive (charged)...... Nickel oxide.
inches of mercury 0.1).
Negative (charged) ....Cadmium.
Electrical data:.................
Separator material ........... Plastic laminated.
Rating ...................... 14 ampere-hours.
Cell case material............. Mold nylon or Acrylonitrile-
Butadiene-Styrene.
Current at rated load (2.8 am-
peres):
Voltage:
Temperatures between 0 F.
Open circuit ............... Approximately 6.5 volts (fully
(-17.8C.) and between
charged, with a 24-hour
125F. (51.7C.)...... 2.8 amperes for approximately 5
rest period).
hours.
2-2
