When using a portable laptop ventilator ONLY at night, plug the electric cord from the ventilator to an electrical wall socket. This will charge the backup internal battery. In the event of a power failure in your home, the backup internal battery provides emergency power for 45 minutes to 1 hour.
For nighttime charging of a portable laptop ventilator that is hooked up to a wheelchair, perform the following steps:
At night, the power wheelchair MUST be connected to the chair charger. The chair charger has an electrical cord that plugs into an electrical wall socket. The charger also has a cord that must be plugged to the power wheelchair battery outlet. Mark this outlet with red tape to make it easy to find.
The LTV ventilator has a gray charger box that must be plugged into an electrical wall socket at night. Connect the gray cord on the charger to the gray ventilator cord. Overnight, the internal ventilator battery will charge. The internal battery is a backup battery. It allows the ventilator to function in the event of a power failure, providing emergency power only for 45 minutes to 1 hour.
While charging the ventilator, the CHARGE STATUS light will blink until it is fully charged. When fully charged, it will become a steady AMBER light.
In the morning, remove and store both the power wheelchair charger and the ventilator charger. Connect the ventilator converter box by plugging one end into the wheelchair battery outlet (marked with red tape), and connect the other end to the gray ventilator cord.
During the day, while converter box is on, the EXTERNAL POWER light should be ON and GREEN.