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FES BATTERY PACK GEN2 14S, Version 1.23
2. General info
This is standard FES Battery developed especially for FES application. In each battery
pack there are 14 cells, all wired in serial (14S). For standard FES application, always a pair
of such battery packs is required. One pack is marked as A and second pack as B!
We are using high power SLPB (Superior Lithium Polymer Battery) type of cells,
produced by global leader of Lithium polymer battery industry - Kokam Co.
Each Battery pack is equipped with internal BMS (Battery Management System) circuit
board which is fixed above the cells and is equipped with 14+2 LEDs to monitor its operation.
For + and - terminals we chose to use Amphenol Radsok hyperbolic high-power contact
technology. High current female contacts are hidden inside of the pack.
To avoid possible wrong connections there is 8mm contact for – pole and 10,3mm
contact for + pole.
2.1 Technical data:
Battery pack type
Weight of single battery pack
Box dimensions (WxLxH), without terminals and ventilators
Cells producer
Electrochemical system
Cells type
Average capacity of each cell
Number of cells
Energy storage capacity
Maximum total voltage
Minimum total voltage
Maximum current
Max balancing current per cell
Internal BMS type
Standard 600W small charger
Optional 1200W biger charger
Optional 2300W fast charger
Optional 2000W fast charger
FES GEN2 14S battery packs are suitable for next sailplane types:
-Ventus 3 FES, Ventus 2cxa FES, Discus 2c FES (produced by Schempp-Hirth, Germany)
-HPH 304 ES (produced by HPH Sailplanes, Czech Republic)
-LAK17B FES, Mini LAK FES (produced by SAirKo, Lithuania)
-Silent 2 Electro (produced by Alisport, Italy)
-Diana 2 FES (produced by Avionic, Poland)
-LS8 e-neo (produced by DG flugzeugbau, Germany)
-AS13,5m FES (produced by Albastar, Slovenia
Page 4 of 26
September 2019
FES GEN2 14S
15,7 kg
154 x 220 x 257mm
Kokam, South Korea
NMC (LiMnNiCoO2)
SLPB100216216H
41 Ah
14
2,1 kWh
58,3 V
42 V
250A
1A
FES-BMS-9R
FES KOP602
FES KOP1001
FES KOP2300
FES PR2300
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