• DarwinFPV OneLink 4S 850mAh LiPo-HV battery, angled view showing 70C label and 15.2V marking
  • Side profile of OneLink 850mAh 4S LiPo-HV pack showing DarwinFPV branding and 12.92Wh print
  • End view of LiPo pack showing stacked cells and top lead exit
  • Package contents: 850mAh battery with XT30 lead and white balance cable adapter
  • 850mAh OneLink LiPo battery on digital scale with display reading about 77.7 g
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DarwinFPV OneLink 4S 850mAh LiPo-HV Battery 70C XT30, XH-JST 5P, 15.2V/17.4V

DarwinFPV OneLink 4S 850mAh LiPo-HV Battery 70C XT30, XH-JST 5P, 15.2V/17.4V

DarwinFPV

$39.99 USD
$39.99 USD
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OneLink 4S 850mAh
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Overview

DarwinFPV OneLink 4S 850mAh LiPo-HV battery is designed to reduce common FPV battery issues such as exposed leads and awkward installation. The integrated structure encloses the connection area for a cleaner setup, and it uses an XT30 discharge connector for quick plug-in use on XT30-equipped FPV drones.

Key Features

  • Integrated design to help avoid exposed wiring and improve installation neatness
  • Propeller-cut prevention concept by keeping connection points more protected
  • XT30 discharge connector for compatibility with many XT30 FPV drones
  • Charging interface: XH-JST 5P (balance head extension cable included)
  • Factory testing: manufacturer states each battery is individually tested with a 100% factory pass rate

Specifications

Model OneLink 4S 850mAh Lipo Battery
Capacity 850mAh
Standard Voltage 15.2V
Full Charge Voltage 17.4V
Discharge Rate 70C
Assemble 4S1P
Cell Type LiPo-HV
Energy 12.92Wh
Recommended Charging Current 0.85A (1c)
Max Charging Current 2.55A (3c)
Charging Interface XH-JST 5P
Discharge Interface XT30 (16AWG)
Dimensions 76*18*30mm
Weight 77.1g

What’s Included

  • 1x ONELINK 4S 850mAh Battery
  • 1x Balance Head Extension Cable
  • 1x XT60 to XT30 adapter cable

Applications

  • XT30-connector FPV drones that fit a 76*18*30mm battery size
  • Freestyle and general FPV flying where a compact 4S LiPo-HV pack is preferred

For compatibility questions (connector type, charger support for LiPo-HV, or fitment), contact https://rcdrone.top/ or email support@rcdrone.top.

Details

DarwinFPV OneLink 4S 850mAh LiPo-HV battery with integrated enclosed lead design and XT30 connector end

The OneLink integrated housing keeps the connection area protected for a cleaner, more secure install on compact FPV builds.

Comparison of traditional FPV battery leads vs OneLink integrated design to help prevent propeller wire cuts

By routing and shielding the leads, the OneLink layout helps reduce the chance of prop strikes damaging battery wires.

OneLink 4S 850mAh pack plugging into a charger bay, highlighting simplified plug-and-play charging setup

Plug-and-play wiring streamlines setup while still supporting proper 4S balance charging via the included XH-JST 5P lead.

Size comparison: traditional 4S pack vs OneLink 4S 850mAh battery with dimensions for direct replacement fit

Dimensions are designed to match common 4S battery footprints, making it an easy swap for many XT30-equipped FPV drones.

Factory testing graphic showing OneLink batteries checked on charger equipment for performance and safety

Each pack is factory tested to help ensure consistent performance and reliability out of the box.

FPV pilot flying outdoors with quadcopter, highlighting longer flight time and strong discharge performance messaging

A high-discharge 4S LiPo-HV pack for freestyle and everyday FPV flying when you want compact power with quick XT30 hookups.

Specification table for DarwinFPV OneLink 4S 850mAh LiPo-HV: 15.2V nominal, 17.4V full, 70C, 77.1g

Skip the guesswork—key specs like voltage, discharge rate, dimensions, and weight are summarized for quick fit checks.

Packing list: OneLink 4S 850mAh battery, XH-JST 5P balance head extension cable, and XT60 to XT30 adapter cable

Everything needed to get started is included: the battery, balance extension lead, and an XT60-to-XT30 adapter.

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