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1 Min-Max labels for the fluid level
2 Cover of an individual battery cell
When switching from lead acid to gel
batteries, changing the charging prole on the charger is mandatory (see notice on the charger).
NOTICE
Please note the following when handling the bat-
teries:
• Charge the batteries as soon as possible if only one LED is ashing on the battery capacity LED
indicator.
• Do not charge in the green range.
• During extended periods of disuse, charge the batteries of the B500/B500-S power wheelchair
weekly.
• Otto Bock HealthCare GmbH assumes no liability for damage caused by deep discharge.
NOTICE
Please note the following when using the charger:
• Only use a battery charger supplied by Otto Bock which has been tested and approved for the respec-
tive batteries by Otto Bock HealthCare GmbH (observe information on the charger). Failure to do so
can result in a battery explosion and possible impairment of health due to contact with battery acid.
• Only the battery charger provided by Otto Bock may be used for charging.
• The information on the nameplate of the charger must match the country-specic voltage of the re-
spective power supply network.
• Only use the battery charger within the specied ranges of temperature and humidity.
• Place the rubber feet of the battery charger on a level surface.
• When setting up the charger close to a window, protect it against direct sunlight.
• Keep the charger from overheating. The vent openings on the back of the charger must not be cov-
ered.
• Turn off the control unit during the charging process so that the entire charging current ows to the
battery.
• Avoid dust and dirt. Only clean with a dry cloth.
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