Rackmount Solutions XRT Series - Manual (Page 28)

27
BATTERY REPLACEMENT
It is recommended that you turn the UPS off and disconnect the input
power cord from the receptacles prior to connecting or disconnecting the
battery terminals. Only UPS’s that have external battery packs can be
changed “HOT”, that is with AC power connected to the unit, and while
supplying power to your equipment. If battery packs MUST be changed
while power is on, they can ONLY be changed while the AC line is
supplying power to the protected equipment. Be extremely careful while
plugging or unplugging additional battery packs. Insure that the cable
connectors have the Red and Black terminals aligned before plugging
together. Improper alignment may result in a short circuit that can destroy
the battery packs and the UPS, as well as causing a fire and injury
hazard. If the units must be opened to replace the batteries, the following
precautions should be followed;
1. Disconnect all receptacles, line cords and battery connectors
BEFORE removing the case screws.
2. Remove watches, rings, and other metallic jewelry before
servicing the batteries.
3. Use tools with insulated handles.
4. Wear protective gloves and eye-wear.
5. Do not lay tools or other objects on top of the batteries.
6. Insure all connections to the new batteries are EXACTLY the
same as they were from the old batteries. It is recommended that
you make yourself a sketch of the batteries and their connections
BEFORE you attempt to remove the old batteries.
7. Verify all of the battery brackets and mechanical fittings are
replaced exactly as they were removed.