PowerWalker Battery Pack for VFI 1000_1500 LCD - Manual (Page 4)

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CAUTION – Do not open or mutilate the batteries. The electrolyte from the
batteries is toxic and harmful to the skin and eyes.
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CAUTION – Risk of Electric Shock – Battery circuit is not isolated from AC,
hazardous Voltage may exist between battery terminals and ground. Test
before touching with bare hands.
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CAUTION – A Battery can present a risk of electrical shock and high short
circuit current. The following precaution should be observed when
working on batteries:
1. Remove watches, rings, or other metal objects.
2. Use tools with insulated handles.
3. Wear rubber gloves and boots.
4. Do not lay tools or metal parts on top of batteries.
5. Disconnect charging source prior to connecting or disconnecting
battery terminals.
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Do not plug or unplug the battery connector if UPS works in DC
(discharging) mode.