21
Be in charge.
Super B.
5. Connecting Li-ion batteries in series and parallel
5.1. Connecting Li-ion batteries in series.
!
Caution!
Before connecting 2 or more Li-ion batteries in series, the Li-ion batteries must
be charged to 100% SoC.
!
Caution!
Before connecting 2 or more batteries in series, always consult Super B
!
Caution!
Depending on the installation a precharge circuit is needed. For further
information consult Super B or your dealer.
When using Li-ion batteries in series configuration CAN balancing is required (see
paragraph 5.4.4).
The CAN power cable is necessary for CAN balancing.
In installations with more than 2 batteries in series the CAN power cable shall be powered
from an external 24V power supply. The external voltage on the CAN power cable shall not be
higher than 28.8 Vdc
15/03/2018 17:00 C:\Users\ipapa\OneDrive\Desktop\24V_2s1p.sch (Sheet: 1/1)
J2_IO
J3_CAN
J1_BREL
J2_IO
J3_CAN
J1_BREL
0
1
2
3
4
5
6
7
8
9
A
B
C
D
Version
Date
Name
Title:
Sheet:
15/03/2018 17:00
24V_2s1p
1/1
CAN_Term_Female
CAN_Term_Male
X1
X2
X1
X2
Plus
Minus
K1
Rc Rnc Rno
1
2
3
4
5
6
7
gnd
V+ soc nc
FU
S
E
FUSE
CAN
Red(+)
Black(-)
CAN Power Cable
Minus (-)
0.1
2014 OCT 06
R. Pot
Plus (+)
Rc
Rnc
Rnc
Rc
Rnc
Rnc
Con J2 (IO connections)
Rc (pin 4)
Rnc (pin 5)
5A
Main Switch
+
+
_
_
Fu
se
+
+
_
_
Fu
se
A1
A2
Figure 13. Batteries connected in series with CAN power cable, external disconnect device and external power supply.
5.2. Connecting Li-ion batteries in parallel
!
Caution!
Before connecting 2 or more Li-ion batteries in parallel, the Li-ion batteries must
be charged to 100% SoC.
!
Caution!
For more than 4 Li-ion batteries in parallel connection consult Super B or your
dealer.
!
Caution!
Depending on the installation a precharge circuit is needed. For further
information consult Super B or your dealer.
!
Caution!
When batteries are placed in parallel configuration, the used relay should be
suitable for the current used by the application.
