24
WhisperPower
Lithium Plus 12 V 210 Ah 340 Ah
4.6.3. Connecting Lithium batteries in series
Caution! Before connecting 2 or more Lithium batteries, the Lithium batteries must be
charged to 100% SoC.
Caution! For more than 4 Lithium batteries in series connection consult Whisper Power or
your dealer.
Caution! Depending on the installation a precharge circuit is needed. For further informa-
tion consult Whisper Power or your dealer.
When using Lithium batteries in series configuration CAN balancing is required (see para-
graph 4.7.4.).
The CAN power cable is necessary for CAN balancing.
In installations with more than 2 batteries in series the CAN power cable should be pow-
ered from an external 24V power supply. The external voltage on the CAN powercable 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 14. Batteries connected in series with CAN power cable external disconnecting device and external
power supply.
4.6.4. Connecting Lithium batteries in parallel
Caution! Before connecting 2 or more Lithium batteries, the Lithium batteries must be
charged to 100% SoC.
Caution! For more than 4 Lithium batteries in parallel connection consult Whisper Power
or your dealer.
Caution! Depending on the installation a precharge circuit is needed. For further infor-
mation consult Whisper Power or your dealer.
Caution! When batteries are placed in parallel configuration, the used relay shall be suit-
able for the current used by the application.
