After Landing; Taking Battery Packs Out Of Sailplane - FES GEN2 14S User Manual

FES BATTERY PACK GEN2 Version 1.18

5. After landing

After landing (or if you decided not to fly) it is mandatory to unplug
"Connecting cable", from the battery packs!
At the same time, also both BMS switch on top of battery packs,
must be switched OFF.
Only when connecting cable is unplugged, FES system is completely
shut down. Otherwise there is still consumption of about 25mA,
which could result in discharge of battery packs, below critical level
of 90V, if connecting cable is left connected for a week or two!!!
After such scenario, a new pack would be required, and they are
rather expensive!

5.1 Taking Battery packs out of sailplane

Before each flight it is recommended to have fully charged battery packs, in order
to have maximum available range if required. If battery packs were discharged during
flight, it is best to take them out of the glider, and recharge them shortly before next
flight is planned. To take out battery packs next procedure should be followed:
1. Check that "Power switch" is OFF.
2. Check that FCU instrument and all other instruments (Flight computer, Flarm, Radio,
Transponder, PDA...) are switched OFF.
3. Open battery compartment cover.
4. Pull out "Connecting cable" from terminals of battery packs.
5. Pull out both (RED + and BLACK -) power plugs from battery packs.
6. Fix both power cables to the right side of battery compartment box.
7. Remove DATA connectors, from each battery pack.
8. Fix DATA cable to the side of battery compartment box.
9. Unplug tighten battery pack fixation knobs.
10. Take all fixation plates out.
11. Firmly grip the front battery by a carrier strap.
12. Lift it out of the fuselage and put it on safe place.
13. Firmly grip the rear battery by a carrier strap and slide it forward along the bottom of
the battery compartment.
14. Lift the battery pack out of the fuselage and put it on safe place.
15. Close battery compartment cover.
Page 17 of 25
September 2017