21700 S70 9000mAh 4S2P Li-ion FPV Battery Pack

Voltage 66.6V 丨High-Performance Long Range Drone Battery | 140A Continuous 丨280A Burst | Ultra-Low IR

S70 Product Overview

The S70 21700 Li-ion battery pack is designed for long-range FPV drones, cinematic UAVs, and high-efficiency endurance builds, delivering a rare balance between high burst power and stable long-duration discharge.

Unlike standard Li-ion packs, the S70 is engineered with high-current 21700 cells, optimized for real FPV flight conditions where voltage stability, discharge curve consistency, and thermal control directly affect flight performance.

🛡️ Specifications：
Brand: Auline
Series: S70
Molde: P94140
Configuration: 4S2P / 14.8V (16.8V Full Charge)
Capacity: 9000mAh
Continuous Discharge: 140A (14C)
Burst Discharge:  280A (28C, 5 sec)
Approx Weight: 572g (±5g)
Dimensions: 75×42×85mm (L*W*H)
Main Connector: XT60/XT90
Discharge Cut-off: 2.8V

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☑️ This makes it an ideal choice for pilots searching for:
1. Li-ion FPV battery high discharge
2. long range drone battery 9000mAh
3. high burst Li-ion battery
4. low internal resistance FPV battery pack

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 ⚡ Burst & High Current Output
280A peak burst discharge (5 seconds)
28C equivalent burst performance
Supports repeated high-load throttle cycling (7C–28C tested up to multiple cycles)

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Huge energy under punch-out
🔋 Continuous Discharge Stability
140A continuous discharge (14C equivalent)
Full discharge range: 4.2V → 2.5V cutoff
Maintains usable voltage output across full flight cycle
This ensures stable cruising for long-range FPV missions without early power drop.

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💪 Thermal Performance
Max temperature under full load test: 87.5°C
Ctrolled heat rise under continuous discharge
Stable structure under repeated burst cycles

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Lab Certified Performance: This model battery cells using industry-grade NEWARE CT-4000 testing equipment to guarantee true-to-spec discharge curves.