FDA Cleared DW-11A User Manual page 19

Electric stair climbing hand trucks
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4) Only use the special charger for the 11A/B ladder chair to charge.
5) The charger needs to be tested regularly and kept away from oil, thinner and sharp
instruments.
6) This equipment can only be tested and repaired at the original factory and its authorized
dealers.
7) Please do not disassemble or change this charger.
8) When charging, please make sure that the
charger is not in a humid environment.
9) Please do not touch the charger socket with wet hands.
10) The car cannot be operated while charging to ensure safety.
Tips:
1. After charging, please unplug the 220V AC power plug at the input end of the charger, and
then unplug the output end plug. Keep your hands dry when plugging or unplugging the power
source. If you find an abnormally high temperature or peculiar smell during charging, please
stop charging immediately and contact your dealer for repair.
2.Please fully charge the battery before using it for the first time, which will increase battery
life and performance.
3.For battery maintenance, please charge the battery once a month.
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