WE BOUGHT BIG, YOU SAVE BIGGER

Save Up To $75!

CLEARANCE SALE

Save Big While Supplies Last

WE BOUGHT BIG, YOU SAVE BIGGER

Save Up To $75!

CLEARANCE SALE

Save Big While Supplies Last

  • Cars & Trucks
  • Motorcycles
  • Aircraft
  • Boats
  • Radios
  • Batteries & Chargers
  • Parts
  • Part Finder
  • Learn & Enjoy
  • Sale
  1. Shop
  2. Cars & Trucks
  3. Parts, Electronics & Accessories
  4. Batteries

In Stock

7.4V 4000mAh 2S 50C Smart LiPo Battery, IC3

Spektrum Accessories - SPMX40002S50H3

$56.99

RC Club points earned on this item shown at checkout.

7.4V 4000mAh 2S 50C Smart LiPo Battery, IC3 Product Specs

  • ApplicationSurface
  • Balance Lead Length90mm
  • Battery Balance ConnectorJST-XH
  • Battery TypeLiPo (3.7V per cell)
  • Battery Voltage7.4V
  • Capacity4000mAh
  • Cell ConfigurationFlat
  • Connector TypeIC3
  • Discharge Lead Length3.543" (90 mm)
  • Hard CaseYes
  • Maximum Continuous Discharge Current200 Amps
  • Maximum Continuous Discharge Rate50C
  • Normal/Standard Charge Current4A
  • Normal/Standard Charge Rate1C
  • Number of Cells2
  • Product Height0.98" (25 mm)
  • Product Length5.43" (138 mm)
  • Product Weight8.22 oz (233 g)
  • Product Width1.81" (46 mm)
  • Prop 65<img alt="Prop 65 Warning Icon" src="/on/demandware.static/-/Sites-horizon-master/default/dw9d982ccb/Service/Prop65/warning-icon.png" title="Prop 65 Warning " />&nbsp; California Residents<a href="http://www.p65warnings.ca.gov"> Prop 65 WARNINGS.</a>
  • Wire Gauge12 AWG

What Our Customers Are Saying

We’re looking for stars!
Let us know what you think

HORIZON HOBBY, WHERE RC MEMORIES LIVE.

Who We Are.

At Horizon Hobby, our personal goal is to inspire dreams and build memories. We take pride in providing the best hobby store experience for our customers, whether that’s online, at RC events, or in the RC community with RC cars, RC planes, RC boats, and so much more.

Our Values.

Our purpose is simple: deliver WOW moments. By pursuing the best experience through our portfolio of RC cars, helicopters, airplanes, boats, and more, we bring the RC community together in every city, town, and country. We are radio control innovators and Driven is our middle name.

Our Promise.

Our promise to our customers is creating one-of-a-kind experiences that keeps you coming back for more. We are more than an online hobby store. Our RC cars and trucks, RC airplanes and helicopters, and other radio control products are with you at home, on the go, and with your friends. We bring the fun.

Same Day ShippingFree Shipping Over $99Expert Product SupportEasy Returns

Shop

  • New Releases
  • Our Brands
  • Spektrum Certified Used
  • Fan Gear
  • E-gift Card
  • Vehicle Finder
  • Shop Local
  • Find a Wishlist
  • Trains

Support

  • Technical Product Support
  • RC Blog
  • Order Status
  • Repairs
  • Product Registration
  • Check E-Gift Card Balance
  • Shipping, Billing & Returns
  • Event Donations
  • Train Support
  • Know Before You Fly
  • Get Help

Company Info

  • Our Story
  • Contact Us
  • Horizon Brands
  • RC Club
  • Horizon Hobby Visa Card
  • RC Events Calendar
  • Careers
  • Purchasing & Dealer Inquiries
  • Hobbies for Good
  • Affiliate Program

Legal

  • Privacy Policy
  • Terms & Conditions
  • Site Map
  • Compliance
  • Patents
  • Product Recalls
  • Trademarks

Sign up & save 10% on your next order!*

Be the first to know about new products, deals, and events.

*Some exclusions may apply. First time subscribers only. Your discount code will be emailed to you. By clicking sign up, you agree that you would like information, tips and offers about our events and products. See our privacy policy here.

Sign up for Horizon Hobby Text Alerts!

Never miss out - text HOBBY to 44721. Learn More

Copyright 2025 © Horizon Hobby, LLC

Our cookies

This site uses cookies to enhance your web site experience. By continuing to browse or use this site, you are agreeing to our use of cookies. See our privacy policy here.

    Sign up & save 10% on your next order!*

    Be the first to know about new products, deals, and events.

    *Some exclusions may apply. First time subscribers only. Your discount code will be emailed to you. By clicking sign up, you agree that you would like information, tips and offers about our events and products. See our privacy policy here.

    Sign up for Horizon Hobby Text Alerts!

    Never miss out - text HOBBY to 44721. Learn More