iFlight Fullsend 6S 8000mAh Li-Ion Battery Long Range

Specifications

● Capacity: 8000mAh

● Battery Capacity: 177.6Wh

● Voltage: 22.2V

● Cell combination: 6S2P

● Size: 42*64*147mm

● Weight: 840g±10g

● Discharge rate: 17.5C

● Discharge wire plug and length: XT60H-F (AMASS) -95mm

● Charging cable plug and length: JST-XH2.54-7P-50mm

Disclaimer and Safety Guidelines

Safety Reminder: Supervise the battery charging process at all times and ensure to keep away from flammable materials. Improper charging may cause fire, and disassembling, damaging, using damaged batteries, or exposure to fire may lead to explosion. To ensure safety, please regularly check the battery's condition and stop using it immediately if any abnormalities are found.

Disclaimer: Users must carefully read and follow the safety instructions before using this product; any consequences resulting from improper use are the user's responsibility.

Packing List：

1 x Fullsend 6S 8000mAh Li-Ion Battery

Buyer’s Guide: iFlight Fullsend 6S 8000mAh Li-Ion Battery 

Looking for maximum flight endurance and total freedom from battery range anxiety on your 7-inch to 10-inch long-range FPV quad? The iFlight Fullsend 6S 8000mAh 2P Li-Ion Battery utilizes a 6S2P 21700 cell layout to deliver over 26+ minutes of flight time, phenomenal voltage sag resistance, and extreme stability in mountain gusts.

Here is a full breakdown of real pilot flight impressions, side-by-side technical comparisons, and setup guidelines to help you determine if this "long-range beast" belongs in your fleet.

Is the iFlight Fullsend 6S 8000mAh Li-Ion Battery Worth Buying?

Short answer: Yes, for pure long-range exploration, mountain surfing, and flying in heavy crosswinds.

If your priority is extreme flight times (26–30+ minutes) and rock-solid wind stability rather than snappy acrobatic freestyle, this battery is worth every penny. By arranging 12 high-capacity 21700 cells into a 6S2P configuration, the放电 (discharge) workload is split across two parallel banks. This virtually eliminates high-throttle voltage sag—giving you LiPo-like power consistency deep into your flight while offering massive mAh capacity.

Pilot Flight Feedback

During real-world field testing on a 7-inch long-range rig (Aura 7 carrying a DJI O3 Air Unit):

● "Glided Like on Rails": The extra mass (~893g) increases total vehicle inertia. While it reduces quick acrobatic agility, it makes the drone fly remarkably smooth and steady, smoothing out micro-vibrations for cinematic HD footage.

● Unbelievable Voltage Sag Resistance: Even during full-throttle 120A peak bursts (punch-outs), the overall pack voltage remained rock-solid at 18.6V – 18.7V (above 3.0V per cell). The 2P parallel architecture prevents the massive voltage drops typical of 1P Li-Ion packs.

● Extreme Endurance (26+ Minutes): In steady 50–60 km/h cruising flight (drawing 11A–13A of current), the pack delivered over 26 minutes of continuous recording time while drawing down 6700mAh out of its 8000mAh total capacity, landing barely warm.

iFlight Fullsend 6S 8000mAh vs Fullsend 6S 4000mAh

Long-Range Li-Ion Battery Comparison

*Flight time depends on aircraft weight, propellers, cruising speed, weather, and payload.

Community Feedback Summary

Fullsend 4000mAh

✔ Easier to balance on 7-inch builds

✔ Better throttle response

✔ Less inertia during freestyle cruising

✔ Great compromise between weight and endurance

Fullsend 8000mAh

✔ Excellent endurance

✔ Stable voltage throughout long flights

✔ Ideal for 7–10 inch long-range drones

✔ Preferred for mountain exploration and cinematic missions

iFlight Fullsend 8000mAh vs GEPRC Storm 8000mAh

8000mAh Long-Range Battery Comparison

Community Feedback Summary

iFlight Fullsend 8000mAh

✔ Higher discharge capability than earlier versions

✔ Lighter pack improves overall efficiency

✔ Excellent balance between endurance and output

✔ Strong value for money

GEPRC Storm 8000mAh

✔ Premium assembly quality

✔ Samsung 40T cells are trusted for long-term reliability

✔ Very stable during extended cruising

✔ Widely used on professional long-range and cinematic platforms

Buying Advice

● Choose the iFlight Fullsend 6S 4000mAh if you prioritize a lighter aircraft, improved agility, and long-range flights on 5–7 inch FPV drones.

● Choose the iFlight Fullsend 6S 8000mAh if your goal is maximum endurance, extended mountain cruising, or long-range cinematic missions with 7–10 inch aircraft.

● Choose the GEPRC Storm 8000mAh if you prefer Samsung 40T cells and proven long-term reliability for professional long-range FPV applications, accepting a slight increase in weight and a lower discharge rating.

Essential Usage & Safety Precautions

1. Mind the Cutoff Voltage: Li-Ion 21700 cells can safely discharge down to 2.5V–3.0V per cell (15.0V–18.0V total pack voltage). Begin your return-to-home (RTH) journey when the pack hits 3.0V per cell under cruise load.

2. Proper Balance Charging: Always charge Li-Ion packs using a dedicated LiPo/LiHV balance charger in Li-Ion mode (4.1V or 4.2V max per cell depending on cell chemistry). Never charge faster than 0.5C–1C (4A–8A).

3. Check Frame Payload Capacity: Ensure your 7" or 10" frame standoffs, motor thrust, and ESCs can comfortably carry an ~890g battery payload alongside your action camera.

Recommended Parts

● HOTA T6 300W PD 90W 15A 1-6S DC LiPo Battery Charger

● ToolkitRC Q6AC 4-Channel AC/DC Smart Battery Charger

● ToolkitRC M8D Dual Channel Smart Charger

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