21700 S70 Ultra 5000mAh 8S1P Li-ion FPV Battery Pack Voltage 29.6V丨 High-Performance Long Range Drone Battery | 70A Continuous 丨140A Burst | Ultra-Low IR
S70 Ultra Product Overview The S70 Ultra 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 Ultra 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.
☑️ This makes it an ideal choice for pilots searching for: 1. 8S Li-ion FPV battery high discharge 2. long range drone battery 5000mAh 3. high burst Li-ion battery 4. low internal resistance FPV battery pack -----------------------------------------------------------------------------------
⚡ Burst & High Current Output 140A peak burst discharge (5 seconds) 28C equivalent burst performance Supports repeated high-load throttle cycling (7C–28C tested up to multiple cycles) -----------------------------------------------------------------------------------
Huge energy under punch-out 🔋 Continuous Discharge Stability 70A 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. -----------------------------------------------------------------------------------
💪 Thermal Performance Max temperature under full load test: 87.5°C Ctrolled heat rise under continuous discharge Stable structure under repeated burst cycles -----------------------------------------------------------------------------------
Lab Certified Performance: This model battery cells using industry-grade NEWARE CT-4000 testing equipment to guarantee true-to-spec discharge curves.
