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The Spektrum S120 USB-C Smart Charger brings Spektrum Smart Charging technology to a smaller and more convenient platform, giving you even more Smart options for your hobby needs!


Image for S120 USB-C Smart Charger 1x20W from Horizon Hobby
S120 USB-C Smart Charger 1x20W S120 USB-C Smart Charger 1x20W S120 USB-C Smart Charger 1x20W S120 USB-C Smart Charger 1x20W S120 USB-C Smart Charger 1x20W S120 USB-C Smart Charger 1x20W S120 USB-C Smart Charger 1x20W S120 USB-C Smart Charger 1x20W S120 USB-C Smart Charger 1x20W
  • Overview
  • Specs
  • Parts & Accessories
  • Manuals & Support

Smart™ Technology Overview

Spektrum Smart technology is about offering a higher connection to your hobby. It's a connection that puts you in complete control, makes you more aware and more confident about the capability of your equipment—all the while making vital components of your model easier to use than ever. The combined result is a sense that will make you wish everything about your hobby was "smarter."

Spektrum Smart Charging virtually eliminates the hassle from charging your LiPo batteries. This is made possible by an integrated microchip on each Smart battery that communicates with your Smart charger to automatically determine the best charging settings. While all hobbyists will enjoy this simple experience, advanced hobbyists can take advantage of unique data such as cycle count, unhealthy activity like overcharge and discharge, battery temperature, C rating and much more, all saved within each battery. Additionally, automatic discharge to storage ensures a better, and healthier, lifespan for your batteries.

Key Features

  • Easily charge compatible smart batteries from convenient USB power (power supply not included)
  • Automatically detects smart battery information and begins charging when connected
  • Compatible with 2-3 cell Smart LiPo Batteries
Needed to Complete
  • (1) USB Power Source
What's in the Box?
  • (1) S120 USB-C Smart Charger
  • (1) USB-C to USB Cable
  • (1) Product Manual


The Spektrum™ S120 USB-C Smart Charger features Spektrum Smart Charging technology in a small and simple to use platform. This 20W charger easily charges compatible Spektrum Smart batteries conveniently from almost any USB power source. When a Spektrum Smart battery is connected, the S120 immediately detects the battery information and automatically begins to charge. Spektrum Smart charging is designed to be safe, intuitive and convenient so you can simply look forward to putting your batteries back to action!

Charging is easy with the Spektrum S120 USB-C Smart Charger. Simply use the included USB cable to supply power to the S120 Smart Charger from a USB power source (not included). Plug in your Spektrum Smart battery (Lipo versions require the balance lead to be connected as well as the main lead) and the charger will automatically start charging. Monitor your charging status via a blinking purple or yellow LED. Once your charging is complete the LED will glow green.

*Please note that the Spektrum S120 Charger will ONLY CHARGE 2-3 cell SPEKTRUM SMART LiPo/LiFe/LiHV and 6-7 cell SMART NiMh Batteries*

Spektrum™ Smart Tech Video Overview


Compatible Products

Spektrum S120 USB-C Smart Charger 1x20W SPMXC1020 is compatible with EFL3700, EFL3750, HBZ3800, HBZ3850
Application: Only compatible with Spektrum SMART batteries
Battery Type: 2-3 Cell LiPo, 6-7 cell NiMH, 2-3 Cell LiFe, 2-3 Cell LiHV
Height: 0.55" (14mm)
Input Voltage: 5-12VDC USB charge port, USB type C cable included, power supply required
Integrated Balancing: Y - Internal Balancer & External Adapter
Length: 2" (51mm)
Maximum Charge Rate: 4.35V per cell x3 for a 3 cell LiHV, 2A
Output Connector: IC3
Selectable Charge Rate: No
Type: USB Charger
Width: 2" (51mm)

Optional Accessories

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Product Support Tips

Product Support

Product Support & Service

Technical questions about this product should be directed to Horizon Hobby:

Horizon Hobby GmbH
Hanskampring 9
D-22885 Barsbuettel

US Product Support:
Mo - Fr: 2:00pm - 9:00pm (UK Time zone hours of operation)
English: +44 (0) 127 929 7061

Europe Customer Service & Tech Support:
Mo - Fr: 8:00am - 4:00pm
English: +44 (0) 127 929 7061
German: +49 (0) 40-822167800
French: +33 (0) 7 822 63 500

To submit a Horizon Hobby Service Ticket please visit our Service Ticket Form.

If you would like to purchase this product at a local retailer please visit our Store Locator.