Charging - Webasto PosiCharge DVS 300 Operation And Maintenance Manual

DVS Fast Charging System

5.3 Charging

(Note: The numbers shown as part of the screen display in this section of the manual are for
illustration purposes only. The actual numerical combination of voltage, current, and
temperature will vary with the type of battery pack being charged.)
Step 1: Connect battery to charger
To start charging, simply connect the battery to either charge port of the charger. The
charger will establish communication with the BMID, calculate the current state of charge,
identify the correct charging profile, and start charging. At each step, the charger will
display the corresponding Status screen (see Figure 5.2). During "Preparing for Charge",
the DVS counts down while preparing to charge. Charging preparation includes measuring
the Open Circuit Voltage (OCV) of the battery pack and calculating the State of Charge
(SOC) to determine what the initial current should be to charge the pack properly. Once
the charge starts, and the "Charging" screen is displayed, the current is ramped up from
zero to the target initial current while the charger monitors the pack voltage.
Note that the screen examples shown above have a left-facing arrow at the left of line 1. This
indicates that the display applies to charge port A. A right-facing arrow at the right of line 1
indicates that the display applies to charge port B. The display screen will periodically update
the charging data as the charge progresses. In addition, the front panel has several status
LEDs that indicate the current status of the vehicle under charge and whether it is scheduled
for an equalization charge (see Figure 5.3 and Table 5.1)
23411-W-03-01
< C h a r g e r R e a d y
C o n n e c t V e h i c l e
< V e h i c l e C o n n e c t e d
G e t t i n g C o n f i g I n f o
< S t a r t i n g F a s t C h a r g e
P l e a s e W a i t X X S e c
< C h a r g i n g
5 3 %
Figure 5.2 - Connecting Status Screens
Page 12 of 29
Vehicle Connected
Communication
Webasto Charging Systems, Inc.