Fully Depleted Battery - Respironics BiPAP Service Manual

Chapter 4
Periodic Maintenance
4-6
4.4.4

Fully Depleted Battery

NOTE: Because reconnecting the charged battery is time-sensitive, read these
instructions before beginning this procedure.
BiPAP Focus charging circuitry is designed to detect a battery with a minimum
voltage of 2.80 VDC as measured across the red and black battery connector
wires. If measured battery voltage measured is < 2.80 VDC, use the BiPAP
Focus battery charging cable (P/N 1040421) to provide the initial charge
required to allow the ventilator to recharge a depleted battery:
1. Turn the ventilator OFF (O) and disconnect the power cord from the
rear of the unit (Figure 4-3).
AC/DC power
supply input
Figure 4-3: Back Panel Connections
BiPAP Focus Ventilator Service Manual © Respironics, Inc.
ON/OFF switch
Shown in the
OFF position
Power cord strain relief
clip
REF 1029568 Rev B