Best Battery for E-flite (Eflite) Eratix 3D SWS 1.6m (64") RC Aerobatic Plane

The E-flite Eratix 3D SWS 1.6m (64") isn’t your usual foam flyer—it’s a balsa + carbon build with a direct, precise stick feel. With such a stiff airframe, your 6S LiPo battery choice makes an immediate difference in how the airplane reacts in the air.

Let’s dig in. This guide takes you from lightweight 3200mAh packs to long-range 10000mAh setups, showing how to match batteries to your flying style. We’ll also compare the Eratix against foam models like the Avios Extra NG so you can see where each shines. Many pilots simply search Eflite Eratix battery or even E flite aerobatic plane LiPo, and this post will give you clear answers.

Why battery choice matters on wood planes

Think of it this way: a wood-and-carbon frame doesn’t “soak up” energy the way foam can. Every volt and amp your pack delivers hits the surfaces directly, giving you crisp, punchy control. That’s why hover stability, torque rolls, and XA precision depend heavily on how steady your 6S holds under load.

• Connectors: EC5/IC5 plugs are the standard fit.
• Discharge rating: Higher C reduces voltage sag during aggressive 3D moves.
• IR consistency: Balanced packs give predictable, repeatable performance.

Capacity ranges explained (3200–10000mAh)

3200–4200mAh: Light and agile—perfect for XA drills and aggressive combos. Shortest flights, sharpest feel.

5000–6000mAh: The sweet spot for most pilots; solid punch with good flight times for daily 3D and sport flying.

6200–10000mAh: Heavier but smoother—great for pattern-style lines and long sessions where stability matters. Predictable and steady under load.

Here’s the choice: want crisp pop-tops and fast rotation rates? Pick lighter packs. Want longer sessions and calmer tracking? Go bigger. It’s about what kind of flying you want that day.

Comparing with Avios Extra NG (same size, different feel)

The Avios Extra NG (~1.6m) is an EPO foam design—durable and affordable. The Eflite Eratix 3D SWS is balsa + carbon—stiffer, sharper, and more demanding on the pack. If you’ve been flying foam and step into wood, packs that used to be “good enough” won’t cut it. To keep that locked-in feel, a stronger 6S LiPo is essential—the difference shows as soon as you take off.

Practical setup tips

• CG placement: Lighter packs forward, heavier packs slightly back. Tune balance for hover and smooth exits.
• Prop & load: Aggressive props pull more current—pair with higher-C or larger packs to reduce sag and keep temps under control.
• Pack care: Match packs by IR, store properly, and keep them balanced for consistent performance.

FAQ

Q: Can I fly the Eratix with 4000mAh 6S packs?
A: Yes. Expect a lively feel and short flights (about 3–4 minutes). Great for XA practice.

Q: What’s the max practical capacity?
A: Up to 10000mAh works. It smooths handling, extends flight time, and fits well for pattern or long practice sessions.

Q: EC5 vs IC5—are they interchangeable?
A: Yes. They’re fully compatible. Use either consistently.

Q: Do higher C packs increase flight time?
A: No. They reduce sag and heat. Flight time depends on capacity and throttle use.

Conclusion

The E-flite Eratix 3D SWS 1.6m shows its full potential only with the right pack. Whether you choose 3200–4200mAh for agility, 5000–6000mAh for balance, or 6200–10000mAh for endurance, a strong 6S LiPo battery with EC5/IC5 and a solid C rating makes the airplane fly as an extension of your hands.

Want our recommended packs? Browse the E flite Eratix 3D SWS Battery Collection.