DVS Fast Charging System
23411-W-03-01 Page
21 of 29
Webasto Charging Systems, Inc.
Symptom
Probable cause(s)
Action
Battery takes too long to
charge
Algorithm/capacity mismatch
Bad BMID
Shorted or worn BMID wire
Loose power cable or battery interconnect
SOC mismatch within pack
Battery too hot when charge started
Battery brought in at extremely low SOC
J
G
F
Q
I
H,P
K
Pack failing to equalize
BMID misprogrammed
J
Output cables or
Connector too warm
during charge
Cable undersized for length and current
Connector underrated for current
Bad crimp or connection within connector
Short in output cables
Bad cell within pack
N
N
N
F
I
Battery doesn’t last full
shift
Algorithm/capacity mismatch
Incorrect equalization schedule
Batteries are under watered
Bad cell within pack
Bad BMID
Premature disconnection of charge cable
J
O
P
I
G
F
Battery water usage too
high
Algorithm/capacity mismatch
Incorrect equalization schedule
Battery temperature too high
J
O
H,P
Battery temperatures too
high
Loose interconnection between batteries
Pack/Algorithm mismatch
Batteries underwatered
Cell SOC mismatch
Incorrectly installed temp sensor
Q
J
P
I
F,G
Charge connector arcs
when disconnected
Bad Control board
B
Noisy unit
Loose Sheet metal
Loose Fan blade or mount
Noisy Transformer
Miswiring of AC input
R
R
A
D
Excess fumes during
charging
Algorithm overcharging batteries
Underwatered batteries
J
P
History files incorrect
Bad or noisy control board
Bad BMID
B
G