FES Maintenance manual, v1.16 May 2020
Page 9 of 24
3.2.4 Battery packs
The battery packs have been developed specifically for the FES system. There are 14
cells, all wired in serial (14S) in each battery pack. A standard FES system requires a pair
of battery packs. The first pack is marked with the letter A and second pack as B. Battery
packs provide power to the whole FES system.
We are using high power SLPB (Superior Lithium Polymer Battery) cells produced by
the global leader of the Lithium polymer battery industry - Kokam Co. Please see the cell
technical specifications for detailed information about the cells.
Each battery pack is equipped with a Battery Management System (BMS):
−
GEN1
battery packs have an
external
Battery Management System
−
GEN2
battery packs have an
internal
Battery Management System. The system is
placed above the cells and is equipped with 14+2 LEDs to monitor its operation.
For the + and - terminals, we chose to use Amphenol Radsok hyperbolic high-power
contact technology. High current sockets are hidden inside of the pack. Different sizes of
the terminals are used to prevent incorrect polarity connections. The minus pole (-) uses
an 8mm and the plus pole (+) a 10,3mm socket.
Technical data of FES GEN2 14S 40Ah Battery packs
Battery pack type
FES GEN2 14S 40Ah
Weight per pack
15,7 kg
Box dimensions (W x L x H), without terminals and ventilators
154 x 220 x 260 mm
Cells producer
Kokam, South Korea
Electrochemical system
NMC (LiMnNiCoO2)
Cells type
SLPB100216216H
Cell average capacity
40 Ah
Number of cells
14
Energy storage capacity
2,1 kWh
Maximum allowed total voltage
58,3 V
Minimum allowed total voltage
42 V
Maximum allowed current
250 A
Max balancing current per cell
1 A
Internal BMS type
FES-BMS-9R
Standard 1200 W charger
FES KOP1001
Standard 600 W charger
FES KOP602
Optional 2000 W charger
FES KOP2300
Optional 2000 W charger
FES R2300
For a detailed description of the battery packs, please refer to the following manuals:
-
FES GEN1 Battery pack manual
-
FES GEN2 Battery pack manual
