-
+
-
+
+
-
+
-
+
+
-
+
-
+
+
+
-
+
-
+
-
+
-
-
-
-
Alw
ays use busbars when applying midpoint v
oltage monitoring!
C
ables to busbars must all hav
e the same length!
-
C
onnec
ting multiple ba
tteries
without
midpoin
t v
oltage monitoring : 48
V
A
pplying midpoin
t v
oltage monit
oring : 48
V
OK
WRONG
D
ue to v
oltage dr
op o
ver the + and - c
ables
midpoint v
oltages ar
e not identic
al
Shunt
BMV 702
UTP
+B2
+B1
Fig
. 9
Fig
. 10
Fig
. 11
Fig
. 12
M
idpoints should not be inter
connec
ted: one bad
batter
y c
an go unnotic
ed and c
ould damage all
other batteries
M
idpoints c
an be inter
connec
ted if c
orr
ec
tiv
e ac
tion
is tak
en in c
ase of an alarm.
In c
ase of one string of 4 batB1 and +B2 c
an
be c
onnec
ted dir
ec
tly to the batter
y posts
.
-
+
-
+
+
-
+
-
+
+
-
+
-
+
+
+
+
-
+
-
+
-
+
-
-
+
-
+
+
-
+
-
+
+
-
+
-
+
+
-
-
-
-
+
-
+
+
-
+
-
+
+
-
+
-
+
+
+
-
+
-
+
-
+
-
-
-
-
+
-
+
-
+
-
+
-
+
-
-
-
-
GOOD
This c
able should be shor
t. V
oltage dr
op o
ver this
cable will distor
t the midpoint measur
ement.
