Tripp Lite SU60KX manual Battery compartment. Warning Observe proper polarity by

4 Internal Battery (continued)

4.1 Installing and Removing Internal Batteries (continued)

•Use a voltmeter (user-supplied) to test the voltage of each internal battery pack. Observing proper polarity, connect the voltmeter’s black probe to the battery pack’s black connector; connect the voltmeter’s red probe to the battery pack’s red connector. Make sure the voltmeter’s probes touch the metal contacts inside the battery pack’s connectors. The battery pack’s acceptable DC voltage range is between 220V and 280V DC (nominal 240V DC). If several voltmeter tests yield results outside the acceptable DC voltage range, contact Tripp Lite for assistance in determining the possible causes of the incorrect voltage reading before proceeding.

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•	Connect the black cable for each internal battery pack to the
	nearest black connector located inside the UPS system’s battery
	compartment. Connect the red cable for each internal battery
	pack to the nearest red connector located inside the UPS system’s
	PRELIMINARY
	battery compartment. Warning: Observe proper polarity by
	connecting negative to negative (black to black) and positive
	to positive (red to red). Failure to observe proper polarity will
	damage the UPS system and create a serious risk of personal
	injury and property damage.
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•	Replace the battery access bezels.

•Turn on the internal battery circuit breaker switch. If you placed the UPS system in bypass, return it to the previous operating mode. If you turned the UPS system off, turn it on.

Note: If you need to remove or replace internal battery packs, modify steps 6 and 7 by removing and/or replacing the existing internal battery packs, as required.

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