PowerWalker VI 400 SE Manuel De Demarrage Rapide page 10

8. Maintenance
EN
I. General
The UPS is virtually maintenance free: take care of proper environmental conditions and keep air inlets-
outlets free of dust.
II. Fuses
If the AC input fuse is defect, be sure it is replaced by a compatible fuse from the same make and type.
Never short circuit batteries. When working with batteries, remove watches, rings or \other metal objects,
and only use insulated tools.
III. Batteries
Read all safety rules before replacing the battery.
When replacing the batteries, use batteries with exactly same specifications.