9.9 Rechargeable Batteries
In emergency use, rechargeable batteries are used to operate the electrical actuator system inde-
pendently of the mains electricity supply. This guarantees that all electrical adjustments can be
carried out during a power outage.
9.9.1 Emergency Operation
When the bed is occupied by a patient of normal weight (approx. 80 kg), adjustments can be made
for approx. 6 to 10 minutes if the battery is new and fully charged.
Under emergency conditions, if the remaining battery capacity is 30% depleted, a signal tone will
sound during the adjustment.
If the battery capacity is depleted, all adjustment functions are locked out in order to prevent the
battery from discharging their entire charge.
In this case, take the following action to optimise the battery life:
Plug the bed into the mains power supply as soon as possible to recharge the battery
Avoid attempting repeated motorised adjustments that would discharge the battery even
more.
9.9.2 Charging the Batteries
x The batteries are fully charged automatically when the bed has been connected to the mains
supply for at least 8-10 hours.
x It is impossible to overcharge the battery.
x During the charging process, the bed can be adjusted using the handset, control box or locking
box.
The batteries have a limited service life. In normal use, their service life is up to five years. Batter-
ies need to be replaced when operation cycles become very short. For safety reasons, at least one
more height adjustment (up + down) should always be possible. Otherwise, the batteries must be
replaced.
In this case, contact the Stiegelmeyer customer service who will replace the rechargeable batter-
ies and dispose of the old batteries properly. The address can be found in Chapter Service Ad-
dress » Fehler! Textmarke nicht definiert..
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