EnerSys Alpha Micro 100, Installation And Operation Manual

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017-220-J0 Rev C
11.2.3 Battery Maintenance
The batteries supplied with this unit are sealed and maintenance free. Regularly ensure that all connections are tight
and free of corrosion. The presence of corrosion, swelling of the battery case, or distortion in the shape of the case
suggests that the batteries need to be replaced.
11.2.4 Replacing the Batteries
Replace the batteries according to the results of the self test or the presence of terminal corrosion, swelling of the
battery case, or distortion in the shape of the case. New batteries will normally provide longer run times than older
ones. Larger capacity batteries may be available. Contact Alpha Technical Support (1 888 462 7487) to order re-
placement batteries or to obtain assistance. On-site service may be available in your area.
Tools and Materials Required
• AC/DC voltmeter or multimeter.
• Labels or masking tape and marker.
• Slot head screwdriver to fit the terminal blocks.
WARNING!
Read and understand the battery safety instructions in “Safety”.
CAUTION!
Make sure all the replacement batteries are of the same type and rating. Failure to do so
could result in improper charging and damage to the batteries.
The Alpha Micro 100 cannot provide backup battery power while the batteries are being replaced. If the line be-
comes unqualified while the batteries are being replaced, the Alpha Micro 100 shuts down and no power is provided
to the load.
Procedure
1. The Alpha Micro 100 must be in the Line mode (includinf Buck/Boost). If it isn’t, wait until the line is qualified
before proceeding.
2. Switch the Alpha Micro 100 into the Bypass State by doing one of the following:
• From the Alpha UPS Monitor main screen or via the web interface, go to the UPS Maintenance > Unit
Configuration screen. Switch on the Bypass Mode by clicking the ON button and then the Update Con-
figuration button. The Alpha Micro 100 responds by displaying a “Bypass State” alarm. This is normal and
does not indicate a problem. It will clear itself when the Bypass state is subsequently disabled.
3. Switch off the battery circuit breaker.
4. Replace the batteries.
5. Switch on the battery circuit breaker.
6. Switch the Alpha Micro 100 out of the Bypass state by switching the Bypass Mode OFF.
7. If USB is not available or an optional communications module is not installed, the power to the loads may have
to be turned off while the maintenance is carried out. Turn off the AC circuit breaker and the battery breaker.
8. Replace the batteries.
9. Turn the AC breaker and the battery breaker on.