Preparing New Battery for Service (Cont)

TM 11-6140-203-14-4&P

0.95 V/cell, in the LONG CYCLE mode, is reached. Cell

1. Use the following settings: 0-75

voltages should be scanned after 0.9 hours of discharge

variable resistor. set to 2.0 ohms Average discharge

(55 minutes) for low cell voltages. If at least 60 minutes

current for 3 hours discharge: 11.3 amperes Minimum

of discharge is attained then the charger-analyzer will

closed battery voltage at end of 3 hour discharge: 19.0

automatically switch to final charge when the end voltage

volts Minimum individual cell voltages: 1.0 volts.

is reached. If the discharge is less than 60 minutes, the

2. Begin the discharge capacity test.

BATTERY REJECT light is illuminated and the charger

3. When the battery has been

analyzer will continue to discharge the battery at the 10

discharged for 3 hours at the rate indicated above,

hour (C/10) rate for the time on the charge timer. The

measure the closed circuit battery voltage and then as

actual capacity obtained, reported in tenths of an hour,

quickly as possible, the individual cell voltages.

should be recorded on the battery record card.

4. The battery voltage should be

above 19.0 volts. If any cell is less than 1 volt, stop

switch (item 7, appx E), variable resistor (item 8) and test

discharging and mark the cell(s) which measure less

equipment as shown in figure 5-1. Two multimeters are

than 1 volt for possible replacement.

required, one to measure voltage and the other current.

5-4