Riello UPS Aros NetDialog NDG 800 Manual De Usuario página 33

BATTERIES REPLACEMENT
CAUTION: The models require replacement by qualified service personnel.
1) Remove the screw fixing the
panel at the bottom of unit
3) Remove screw and remove the battery
cover
4) Remove the wire, then you can replace
the battery
Models: NDG 800 / 1000 / 1500
2)
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First rotate to small angle, then pull down.
You can disassemble the panel