Adding a battery cabinet to the computer room

How do I set up an UPS battery room?

Open-rack battery rooms must be adjacent to the UPS room. Battery cabinets must be adjacent to the UPS equipment. Cable lengths from multiple cabinets should be kept as nearly identical as possible to prevent voltage drop variations. One cabinet should be able to hold at least one complete string of cells.

Do battery cabinets need to be locked?

Battery cabinets must enclose the batteries behind locked doors accessible only to authorized personnel. As long as the cabinets are kept locked, they can be located in a computer room or other rooms accessible by non-battery technicians.

Does a battery cabinet need additional cooling?

Additional cooling is rarely required for a battery cabinet, but the cabinet must have (1) unobstructed paths within the cabinet for hot air to rise, and (2) adequate openings for hot air and hydrogen gas to escape into the room.

How many cells can a battery cabinet hold?

One cabinet should be able to hold at least one complete string of cells. Best practice is that strings should not be split between two cabinets in order to ensure reliability of the entire string. Figure 1 - Battery cabinet with top terminal cells A battery disconnect switch should be located as closely as possible to the end of a string.

Can a battery be installed on an open rack?

Batteries installed on open racks almost always require installation in a battery room. Sometimes they are installed in the same room as the UPS (i.e., electrical equipment room). Local or regional codes may dictate whether batteries are permitted in an electrical room.

Which battery configuration should I Choose?

Generally speaking, the larger the battery (both physically and ampere-hour rated), the more likely a rack configuration will be considered. There are no hard and fast rules, but typically once a battery unit (single-cell or multi-cell) gets above 100 AH, it favors rack-mount. Below that, cabinet mounting should be considered. Number