5-4). Remove the fillercaps. Adjust the electrolyte level (para 5-6).
(3) Replace the fillercaps.
The following procedures will aid in troubleshooting a defective battery. Visually inspect the battery to
determine whether the trouble is caused by loose connections (a below), corroded connections (b below),
electrical leakage (c below), or an incorrectly Installed cell (d below).
Loose Connections. If connections are loose,
proceed as follows:
(3) Charge the battery as follows:
(a) Charge the battery, using constant-potential or constant-current method. Use table 5-1 to
determine the charging voltage for the constant-potential method. Refer to table 5-2 to determine the charging
current for the constant-current method.
(b) After charging, allow the battery to rest (para 5-4). Remove the fillercaps. Using distilled
water, adjust the electrolyte level by bringing the electrolyte level to not more than one-fourth inch above the
(c) Replace the fillercaps.
Corroded Connections. if the cell terminals or the connector terminals are corroded, completely
Electrical Leakage Test. Using the AN/USM-223, perform the electrical leakage test as described
Reverse Polarity Position. If a cell has been installed in reverse polarity as determined when
performing an individual cell voltage test, proceed as follows:
(2) Remove and reinstall the cell in the battery.
. Table 5-5
in isolating troubles that occur
in the battery.
Before following the procedures outlined in the troubleshooting table, perform the procedures given in a through
Table 5-5. Troubleshooting
A complete disassembly of the battery is required for any of the following defects: Defective cell or cells,
electrolyte leakage, electrical leakage, cell installed in reverse polarity, or defective battery case.
Disassemble the battery, as given in a through e below:
After completely discharging the battery, remove all terminal links by removing their screws and
c. Remove all cells from the battery case as follows:
(1) Loosen all fillercaps to relieve any internal pressure.
(2) Fabricate a cell puller by using two terminal links bent at right angles and appropriate
nonconductive heavy cord or flat web material as shown in figure 5-5.
Do not use wire or other conductive material. Use the cell terminal screws and
washers to secure the cell puller to the cell terminals and