11-10 
 
NOTE 
  If the running time of the battery is too short after fully charged, the battery may 
be damaged already or defective. 
  If obvious signs of damage are detected on the battery or the battery recharging is 
failed, replace the battery and recycle it properly. 
 
11.8.4 Battery Recycling 
If obvious signs of damage are detected on the battery or the battery recharging is failed, 
replace the battery and recycle it properly. Dispose of the battery in compliance with the local 
laws regulating the disposal of such product. 
 
WARNING 
  Do not disassemble batteries, dispose of them in fire, or short-circuit them. They 
may ignite, explode, leak, causing personal injury. 
 
11.9 Electrical Safety Inspection 
NOTE 
  Perform electrical safety inspection after servicing or routine maintenance. Before 
the electrical safety inspection, make sure all the covers, panels, and screws are 
correctly installed. 
  The electrical safety inspection should be performed once a year. 
 
11.9.1 Auxiliary Electrical Outlet Test 
Verify the mains voltage is present at each auxiliary outlet when the ventilator is connected 
with power.