SECTION VII. BATTERY, STORAGE BB-693A/U

TM 11-6140-203-14-3

2-13. Weight and Dimensions

Battery, Storage BB-672/U (NSN 6140-00-777-3322) weighs approximately 2 pounds. The battery is 4 1/64

inches high, 2 13/32 inches wide, and 3 1/4 inches deep. Refer to figure 2-9 for a physical layout of the battery.

No repair parts are authorized.

2-14. Physical Characteristics of BB-671/U (Cell)

The overall dimensions of Battery, Storage BB-671/U (cell) (NSN 6140-00-764-1624) are 4 1/16 inches high, 2

9/64 inches wide, 2 1/32 inch deep, and weighs approximately 6 3/10 ounces. Refer to figure 2-9 for cell layout

of the BB-672/U

SECTION VII. BATTERY, STORAGE BB-693A/U

2-15 Tabulated data for BB-693A/U

charged with 24-hour rest

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

period).

Number of cells ............... 19 BB-60cA/A.

Open circuit at J1 ...... Approximately 9 volts (fully

Electrolyte ....................... Potassium hydroxide (KOH), 31

charged with 24-hour rest

percent (by weight) in distilled

period).

water.

Under load at J2:

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

Temperature of approx-

Temperature ............. -40°F. (-40°C.) to 125°F.

imately 750 F. (23.9°C.):

(51.7°C.).

8-ampere load ........... 24 volts decreasing to not less

Atmospheric pressure Sea level to 100,000 feet (0.4 inch

than 19.2 volts in 5 hours.

of mercury).

30-ampere load ........ 24 volts decreasing not less

Storage:

than 18 volts in 1 hour.

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

270-ampere load ....... 24 volts decreasing to not less

charge

than 14.4 volts in 5 minutes.

Temperature ............. -65° . to 165° F. (73.9°C.).

772-ampere load ....... 24 volts decreasing to not

less

Atmospheric pressure ....Sea level to 100,000 feet (0.4 inch

than 11.0 volts in I minute (3,

of mercury).

20 second pulses).

Electrical

Temperature of approx-

Rating....................... 30 ampere hours at I hour rate,

Imltel -22°F. (-30°

40 ampere-hours at 5 hours

C):

rate.

270-ampere load ...... 24 volts decreasing to not less

Current: ...........................

than 14.4 volts in 3 minutes.

At temperature of ......

Battery terminal links:

approximately 75°F. .

Material ..................... Nickel-plated copper.

(23.90 C.) ........................ 8 amperes for approximately 5

Number ..................... 19.

hours; 30 amperes for approx-

Cell plate materials:

imatey 1 hour, 270 amperes

Positive (charged)...... Nickel oxide.

for approximately 5 minutes.

Negative (charged) ....Cadmium.

At temperature of

Separator material ............ Plastic laminate.

approximately -22°F.

Cell case material............. Molded Nylon.

(30°C.) ..................... 270 amperes for approximately 3

Connector type (24-vol) ....Elcon (16163-7) (12).

minutes

Connector type (8.4-volt) ..MS3102R-16-12S (11).

Voltage:

Connector type Near) ....... M3102R-14A-7P (3).

Open circuit at J2...... Approximately 25 volts (fully

2-10