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Procedure 8-1
Rejuvenating the batteries
Use this procedure to rejuvenate batteries used in the modular business
package (MBP) master and expansion cabinets after the batteries have been
placed in-service.
Requirements
Tools
The following tools are required:
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•
•
Action
Step
1
2
3
4
5
6
7
8
AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0
CAUTION
DC input voltage specifications
The input voltage specifications require that the dc input
to the BIP does not exceed –56.0 V dc. Battery float,
equalize, and high voltage shutdown levels must be set
below this maximum regardless of the type of batteries
installed.
electrical tape
Fluke 8050A rms voltmeter (or equivalent)
portable battery rejuvenating device (customer supplied)
Action
Remove the front cover of the BEM.
Turn OFF the BEM circuit breaker for the string of batteries to be rejuvenated.
Disconnect the negative (–) battery harness power connector in the red lead
between the right-most battery and the BEM circuit breaker (see Figure 8-1).
Insulate the red connector with electrical tape to prevent shorting.
Disconnect the positive (+) battery harness power connector in the white lead
between the left-most battery and the BEM terminal block (see Figure 8-1).
Insulate white the connector with electrical tape to prevent shorting.
Connect the battery rejuvenating device to the batteries according to the
device manufacturer's recommendations and local practices and codes.
Rejuvenate the batteries to levels specified by the battery manufacturer.
Testing the batteries and rectifiers 8-5
—continued—
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