Alpha Technologies FXM2000 Specifications download pdf (Page 74)

017-230-B0 Rev 0810

7.2.3 Battery Maintenance

The batteries supplied with this unit are sealed and maintenance free. Regularly ensure that all connectors 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.

7.2.4 Batter y Conductance Test (Optional)

1. Place the conductance meter probes across Battery #1.

2. Record the voltage and Siemens values in a log book.

3. Repeat for batteries #2, #3 and #4.

A new AlphaCell 180GXL battery has a conductance reference value of 1100 Siemens at 25°C. When this value

drops to 550 Siemens or 50% of the new battery reference value, the battery capacity is suspect of being below

80% and should be evaluated further. When the temperature of the batteries is not between 20°C and 30°C, use

the following temperature compensation values.

Table Q — Battery Temperature Compensation Values

Battery Temperature Reference Value New 180GXL Suspect Value

35°C or higher 1183 592

30°C 1140 570

25°C 1100 550

20°C 1063 532

15°C 1028 514

10°C 995 498

5°C 965 483

0°C or colder 936 468

7.2.5 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 replacement 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.

• Torque wrench.

• Slot head screwdriver to ﬁt the terminal blocks.

• High strength, ﬂame-proof tape such as duct tape.

• Battery terminal corrosion inhibitor (such as NOCO Company’s NCP-2 or Sanchem Inc.’s No-Ox ID Grease

“A”).

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Alpha Technologies FXM2000 Specifications Page 74