OPTI-UPS VS575C - Manual (Page 22)

16 VS375C/VS575C
6. USER REPLACEABLE BATTERY
The Batteries inside your UPS should last from between 3 to 5 years. If you suspect that
the batteries are weak, allow the UPS to charge the batteries for at least six hours and
then test the backup time. If the UPS still does not provide adequate backup time, follow
the procedures below to replace the batteries. Please read section 6.1 before performing
the procedure in sections 6.2.
6.1 Warning
Servicing of batteries should always be performed or supervised by personnel
knowledgeable of batteries and required precautions. Please read the following
cautions before replacing the batteries. Keep unknowledgeable (i.e., unauthorized)
personnel away from the batteries.
CAUTION: Except for the battery, the unit contains no user serviceable parts. Repairs
should be performed only by factory trained service personnel.
CAUTION: A battery can present a risk of electrical shock and high short-circuit current.
The following precautions should be observed when working on batteries:
(1) Remove watches, rings, or other metal objects.
(2) Use tools with insulated handles.
CAUTION: Do not dispose of batteries in a fire. The batteries may explode.
CAUTION: Do not open or mutilate batteries. They contain an electrolyte which is toxic
and harmful to the skin and eyes.
CAUTION: When replacing batteries, use the same number and the following type
batteries: sealed Lead-Acid Maintenance Free (VS375C: 1x 12V3.5AH; VS575C: 1 x
12V/3.8AH)