Product description

Spektrum SPMXCA507 Smart Battery Adapter

This 4-inch (100mm) adapter connects a battery with an IC5 / EC5 connector to a car or other device with an IC3 / EC3 connector. Spektrum names the adapter’s supplied connector ends “IC3 Battery / IC5 Device”; the actual battery-to-car connection is IC5 battery to IC3 device.

  • Battery connection: accepts an IC5 / EC5 battery.
  • Car / device connection: plugs into an IC3 / EC3-equipped device.
  • Part number: SPMXCA507.

For an ARRMA with factory 2S-only brushed electronics, use a compatible 2S battery only. This adapter changes the connector connection; it does not reduce battery voltage or increase the ESC’s cell-count rating.

Engineered for Speed. Built for Control.

Our RC vehicles and parts are crafted with cutting-edge tech and tested for durability. From high-speed drones to rugged RC cars and boats, every product delivers serious fun and unmatched reliability.

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Got Questions? We've Got Answers

What types of RC vehicles do you sell?

We offer a wide range of RC vehicles including airplanes, drones, helicopters, cars, trucks, boats, and a full selection of parts and upgrades for each.

Are your products ready to run (RTR) or require assembly?

Most of our models are RTR (Ready to Run) or RTF (Ready to Fly), meaning they include everything you need out of the box. Some kits may require minimal assembly—check the product description for details.

Do you offer replacement parts?

Yes! We stock replacement parts for most models we sell. If you’re not sure which part you need, contact our support team and we’ll help you find the right match.

How long does shipping take?

Orders typically ship within 1–2 business days. Delivery time depends on your location, but most customers in the U.S. receive their orders within 3–7 business days.

Do you ship internationally?

At the moment, we primarily ship within the U.S., but international shipping is available on select items. Please contact us for a custom quote.

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