How to choose LiPo for Freewing F‑35C 110 mm EDF Jet (12S system)Freewing-m...

This jet runs on two 6S LiPo packs wired in series = 12S total (44.4 V). It does NOT use a single 12S packFreewing-m....

1. Core official requirements

Freewing F-35C Lightning II Super Scale 110mm EDF Jet

Freewing K-8 Karakorum 80mm EDF PNP Jet

• Configuration: 2 × 6S (22.2 V) LiPo batteries connected in series
• Capacity range: 5000‑6000 mAh per pack (6000 mAh is factory recommended)Freewing-m...
• Connector: EC5 on each battery
• ESC: Built‑in 130 A HV ESC (PNP version)

2. Discharge C‑rate selection

This 110 mm inrunner EDF draws very high peak current.

• Minimum: 40C continuous
• Recommended: 50C‑60C continuous (better voltage hold under full throttle, less battery heat)

Avoid 30C packs: they will sag heavily at full power and risk puffing.

3. Battery physical size (critical for fit & CG)

You need two identical‑size 6S packs. Too big will not fit; too heavy will mess up CG.

• Target per‑pack dimension (typical for 6S 6000 mAh 50‑60C hard‑case): approx 165‑175 mm(L) × 45‑50 mm(W) × 50‑55 mm(H)
• Weight per 6S‑6000 mAh 50C pack: ~920‑960 g; total two packs ~1840‑1920 g

Always double‑check battery dimensions before buying. Heavy batteries push CG rearward; stay within manual CG: 133‑140 mm from wing‑fuselage leading‑edge jointFreewing-m....

4. Practical options & flight time

1. 2×6S 5000 mAh 50‑60C: Lighter, better vertical performance, shorter flight (~3.5‑4.5 min mixed throttle)
2. 2×6S 6000 mAh 50‑60C (factory suggestion): Best balanced choice, flight ~4.5‑5.5 min mixed flying

Do NOT go above 6000 mAh per pack: excess weight degrades take‑off, landing and CG.

5. Charging & safety notes

• Charger must support 6‑cell LiPo charging (charge each 6S pack individually, never charge them while series‑connected in‑plane)
• LiPo storage voltage: 3.80 V per cell after flight
• Land at 3.4‑3.5 V per‑cell under load; never fly below 3.2 V/cell resting
• Use high‑quality EC5 connectors; check for heat/melting after hard flights.

Quick buying checklist

✅ Two identical 6S 22.2 V packs ✅ 50‑60C continuous discharge ✅ 5000‑6000 mAh each ✅ EC5 plug ✅ Physical dimension fits battery compartment ✅ Balance aircraft CG after installing new batteries