AEG Protect C.3000 Operating Instructions Manual page 81

Only authorised persons are allowed in the vicinity of the batteries!
When replacing the batteries, the following must be observed:
Only ever use identical maintenance-free sealed lead batteries with the
same data as the original batteries.
Only authorised persons are allowed in the vicinity of the batteries!
When replacing the batteries, the following must be observed:
Only ever use identical maintenance-free sealed lead batteries with the
same data as the original batteries.
Danger! Explosive!
Never throw batteries into open fire. Never open or damage batteries.
(Electrolyte may leak out and damage skin and eyes. It may be toxic!)
Batteries can cause electric shocks and high short-circuit currents.
Take the following safety precautions when working with the batteries:
Take off watches, rings and other metallic objects!

Always use tools with insulated handles!

Do not switch loads on and off using the UPS main switch. Do not use
multiple outlet adapters with a central on/off switch, in order to avoid
peak inrush currents.
Switch OFF the UPS if you do not intend to use it for some time.
PROTECT C must be switched off every evening if the electricity supply
in your company is switched off every night. Otherwise, the battery will
be discharged (assumed power failure). Frequent and complete
discharging of the battery leads to a shorter service life of the battery
and should therefore be avoided!
For personal safety reasons, never switch on the main switch when the
mains connector of PROTECT C is disconnected!
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