Invacare XPO2 Operator's Manual page 23

Charging the Supplemental Battery Only
NOTE: For this procedure, refer to FIGURE 6.4 on page 24.
1. Connect the AC (Detail "A") or DC (Detail "B") power
adapter to the supplemental battery pack.
2. Connect the other end of the AC (Detail "A") or DC (Detail
"B") power adapter into the appropriate power source.
NOTE: If completely discharged, the supplemental battery will fully
charge in approximately 3 to 4 hours. Supplemental Battery Gauge
indicator lights DO NOT illuminate during charging.
Supplemental Battery Status Button
NOTE: For this procedure, refer to Detail "C" in FIGURE 6.4 on
page 24.
NOTE: Pressing the battery status button while charging turns the
battery gauge On and shows the status of the battery capacity. The
battery gauge also flashes "the last" or highest light bar to show that
the battery pack is charging. The flashing bar shows the battery is
actually being charged. The lit bars show the status of the battery
capacity being restored.
Part No 1160887
SECTION 6—OPERATING INSTRUCTIONS
23 Invacare XPO2™