Eaton Electrical 10000L(XL) - Manual (Page 22)

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● Replace batteries with the same number and same type of batteries.
● Do not replace the battery individually. All the batteries should be
replaced at the same time following the instructions of the battery
supplier.
● Normally, the batteries should be charged and discharged once
every 4 to 6 months. Charging should begin after the UPS shuts
down automatically in the course of discharging, the standard
charging time for the standard UPS should be at least 12 hours.
5. Notes for battery disposal and battery
replacement
1) Before disposing of batteries, remove conductive jewelry
such as necklace, wrist watches and rings.
2) If it is necessary to replace any connection cables, please
purchase the original materials from the authorized
distributors or service centers, so as to avoid overheat or
spark resulting in fire due to insufficient capacity.
3) Do not dispose of batteries or battery packs in a fire, or they
may explode.
4) Do not open or mutilate batteries, released electrolyte is
highly poisonous and harmful to the skin and eyes.
5) Do not short the positive and negative of the battery
electrode, otherwise, it may result in electric shock or fire.
6) Make sure that there is no voltage before touching the
batteries. The battery circuit is not isolated from the input
potential circuit. There may be hazardous voltage between
the battery terminals and the ground.
7) Even though the input breaker is disconnected, the
components inside the UPS are still connected with the
batteries, and there are potential hazardous voltages.