Operation
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Operating in Charger Mode
To operate the RS3000 in charger mode from the front panel:
1. Connect AC input power.
The charger automatically starts up when qualified AC power is
connected if the charger is enabled, or the charger is disabled but the
Force Charge enable override is On. See “Force Charge” on page 3–
23.
• The batteries are charged according to the two-stage or three-
stage formula you have selected on the System Control Panel.
(See “Battery Charging Reference” on pageB–1 for more
information on two-stage or three-stage charging.)
• You can interrupt the charge cycle any time you desire by
disabling the charger from the System Control Panel or by
pressing the Charger Enable button (on the front panel of the
RS3000) so it is no longer illuminated.
• To maintain optimal performance in flooded batteries, an
occasional equalize cycle may be required. See “Operating in
Equalization Mode” on page2–10.
• While the batteries are being charged, you can monitor which
stage they are in from the front panel of the RS3000 or from the
System Control Panel.
◆To operate the charger with the System Control Panel, refer to
Chapter 3, “Configuration”.

WARNING: Explosive Gases

Review the “Important Safety Instructions” on page vii before operating the
inverter/charger. During charging, batteries may generate explosive gases.
Thoroughly ventilate the areas around the batteries and ensure that there are no
sources of flames or spark in the vicinity.
Study all battery manufacturer’s precautions such as removing or not removing
cell caps while charging and the recommended rates of charge.
Important:
If you are charging a non-sealed battery, ensure there is sufficient
distilled water in each cell. The battery acid should be at the level specified by
the battery manufacturer. This helps prevent over-heating and purges excessive
gases from the cells. Do not overfill. For a battery without cell caps, follow the
manufacturer’s recharging instructions carefully.