PULSE 6 SERVICE MANUAL
PAGE 5.10
2009
SUNRISE MEDICAL
Section 5
Battery Testing
The Pulse power chair uses two (2) group-22 batteries connected in series. The circuit is protected
by a circuit breaker located under the shroud near the front of the power chair and a non-serviceable
fusible link in each battery harness. Prior to performing any test, the battery terminals should be clean
and tight. Refer to Battery Removal section of this manual.
1.
Check for initial battery voltage at the joystick
using the battery charger connector. Connect the
Multimeter to the two outside pins (
fi
g. 5.18). Pin
1 is positive (+) and pin 2 is negative (-). Fully
charged batteries are typically 25.6 VDC for the
pair, or 12.8 VDC each. Discharged batteries are
24 VDC or less for the pair.
Note: Voltage greater than 26 to 28 VDC
indicates that the batteries are either over-
charged, or the batteries have just been
disconnected from the battery charger and
contain a surface charge. If the batteries
are not freshly charged and the voltage is
excessive, inspect the battery charger for
correct operation.
2.
Load test the batteries using either a
commercial load tester or the following procedure.
To use the power chair’s motors as a load,
complete the following steps:
Warning: Failure to disengage the gearbox in
the next step can cause unexpected operation
of the power chair.
a.
Disengage the motor/gearbox so the motors
can run in freewheel (
fi
g. 5.19).
b.
Connect the Multimeter to the joystick
and record the voltage (
fi
g. 5.20). If the voltage
indicates a surface charge, run the motors for
a few minutes to dissipate the surface charge.
Note: in this example, a small surface charge is
present.
c.
After the voltage has stabilized, record the
voltage. Typical value for a fully charged pair of
batteries is 25.6 VDC (12.8 VDC each).
R-net Fault Codes cont.
fig. 5.18
fig. 5.19
fig. 5.20