DarwinFPV OneLink 4S 850mAh Lipo Battery

Summary 

Tired of the usual FPV battery hassles—exposed wires, propeller-cut cables, and clunky installation? ONELINK Battery fixes them all—looks and performance in one, a total no-brainer for FPV pilots! Minimalist all-in-one design fully wraps all wires and ports—sleek, propeller-proof, and safe even during aggressive freestyle flights. Ditch the annoying balance plug—only a universal XT30 connector here! 10-second setup and charging, even newbies won’t fumble. Same size as standard RC batteries—direct replacement for most XT30-port FPV drones. No battery compartment mods, no extra wiring needed. Every battery gets individual testing (100% pass rate)—reliable for newbies and veterans alike, even during high-intensity flights. Packed with premium cells on par with top-tier RC batteries—longer flight time, fewer swaps, and beastly discharge power. Fast acceleration, snappy response—whether cruising or freestyling, every flight is pure thrill!

Features

1. 🎨 Minimalist Integrated Design: Where Aesthetics Meet Functionality

Featuring an integrated structural design, it avoids any exposed wires or batteries. The sleek, minimalist look boasts a modern vibe, significantly enhancing the overall visual appeal of the entire unit.

2. 🛡️ Propeller Cut Prevention Design: No More Wire Damage

Propeller cuts on battery wires are a common headache for pilots! The integrated design fully encloses all connection points, keeping wires away from high-speed rotating propellers and solving the problem at its root. Fly with more safety—even aggressive freestyle flying feels secure.

3. 🔌 No Balance Plug, Plug-and-Play Convenience

Ditching the traditional balance connector, it greatly simplifies the installation and charging process. Just plug the XT30 connector directly into the drone—no need to align multiple ports. Charging is equally straightforward, and even beginners can get it done in 10 seconds.

4. 🔗 Maxed-Out Compatibility: Direct Replacement, No Modifications Needed

With dimensions matching standard RC batteries, it’s fully compatible with most FPV drones using XT30 connectors. There’s no need to modify the drone’s battery compartment or wiring—simply replace and use.

5. ✅ 100% Factory Testing: Reliable Quality Guaranteed

Every ONELINK battery undergoes individual performance, safety, and durability tests before leaving the factory, with a 100% factory pass rate. This ensures every battery delivered to users meets high-quality standards, making it reliable for both beginners and professional pilots during intense flights.

6. 🚀 Long Flight Time & Powerful Performance: Elevate Your Flying Experience

Equipped with high-quality cells on par with RC batteries, it offers longer flight times, reducing the hassle of frequent battery swaps. It also delivers strong discharge capability, ensuring the drone accelerates quickly and responds nimbly—whether cruising or doing freestyle flying, you’ll enjoy a thrilling experience.