SECTION II. BATTERY, STORAGE BB-429/U

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° .

Type ................................ Nickel-cadmium (vented).

(-17.8°C.) and -40°F.

Number of cells ............... 5

(40°C.) ..................... 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. (25°C.) and 85°F.

Operating range:..............

(29.4°C.)................... 6.0 volts for approximately 5

Temperature ............. -65°F. (-53.9°C.) to 125°F.

hours.

(51.70 C.).

Temperatures between 0°F.

Atmospheric pressure ....Sea level to 10,000 feet (20.6

(-17°C.) and -40°F.

inches of mercury 0.1).

(-40°C.) .................... 5.7 volts for approximately 3

Storage:

hours.

Duration.................... Unlimited, regardless of state of

Intercell connector:

................................ . charge.

Material .................... Nickel-Plated copper.

Temperature ............ -65°F (53.9°C.) to 165°F

Number ..................... 4.

(73.9°C.).

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

(-17.8°C.) and between

charged, with a 24-hour

125°F. (51.7°C.)...... 2.8 amperes for approximately 5

rest period).

hours.

2-2