Vrla Battery Management; Battery Charging; Float Charging - Huawei SMU01C User Manual

SMU01C
User Manual

6.1 Battery Charging

If the AC input to the power system is normal and meets load requirements, rectifiers supply
DC power to loads and lead-acid batteries. If the AC input to the power system is abnormal or
rectifiers cannot supply DC power, lead-acid batteries supply power to loads. After the AC
input or DC output is restored, rectifiers supply DC power to loads and lead-acid batteries.

6.1.1 Float Charging

Principles
Lead-acid batteries discharge slowly when they are being used. To compensate for the loss
caused by self-discharge, charge lead-acid batteries in float mode to ensure their full amount
of electricity. Float charging also helps to maintain battery capacity after a large amount of
electricity is discharged.
Parameters
Table 6-1 Float charging parameter description
Parameters
FC Volt
Issue 03 (2015-01-05)
6

VRLA Battery Management

Description
The voltage at which
VRLA batteries are
charged in float
mode.
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6 VRLA Battery Management
Default Value
53.5 V
Value Range
47.0 V–56.5 V
≤ Boost charge
voltage
15