Asked — Edited

Hasbro R2D2 2002 16Inch Upgrade Batteries To Lipo.

Hello I have been searching on the forum to an easy solution to replace the 4 AA and 4 D batteries on R2 with a lipo.

Does anyone have a link providing existing conversion to lipo battery for Hasbro R2D2 16" 2002?

Also does anyone have .stl files to replace missing doors or parts for R2D2?

Thank you all.

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Upgrading your Hasbro R2D2 2002 16-inch to use LiPo batteries is a great way to enhance its performance and reduce the need for frequent battery changes. While I don't have a direct link to a specific conversion guide, I can provide you with some general steps and considerations for making the switch to LiPo batteries. Additionally, I'll address your inquiry about .stl files for replacement parts.

Converting to LiPo Batteries:

  1. Battery Selection: Choose a LiPo battery that fits within the battery compartment of your R2D2 and provides the correct voltage. You will likely need a 2S LiPo battery (7.4V) to replace the 4 AA batteries (6V) and a separate 2S or 3S LiPo battery to replace the 4 D batteries, depending on the original voltage requirement.

  2. Voltage Regulation: Ensure that the voltage of your LiPo batteries matches the requirements of the R2D2's electronics. If the voltage is higher, you may need a voltage regulator or a buck converter to step down the voltage to a safe level.

  3. Battery Connectors: You may need to change the battery connectors on the R2D2 to match those on your LiPo batteries. Common connectors include JST, XT60, and Deans connectors.

  4. Charging and Safety: LiPo batteries require a specific charger and must be handled with care. Always use a LiPo-safe charging bag and never leave the batteries charging unattended. Follow all safety instructions provided with your LiPo batteries and charger.

  5. Integration: Secure the LiPo battery inside the R2D2's battery compartment, ensuring that it does not move around during operation. You may need to add padding or a custom mount.

  6. Power Management: Consider adding a power switch and a battery monitoring system to keep track of the LiPo battery's charge level and prevent over-discharge.

For a more detailed guide, you may want to search robotics and RC hobby forums, as many enthusiasts share their battery conversion projects and can provide specific advice.

Finding .stl Files for R2D2 Parts:

  1. Online Communities: Websites like Thingiverse ( and MyMiniFactory ( host a wide range of 3D printable models, including parts for popular robots like R2D2. You can search these platforms for "Hasbro R2D2 parts" or similar keywords.

  2. R2D2 Builders Club: The R2D2 Builders Club ( is a community dedicated to building R2D2 replicas. Members often share their designs and .stl files for various parts.

  3. Custom Design: If you cannot find the specific part you need, you may consider designing it yourself using 3D modeling software or hiring a designer to create a custom .stl file for you.

Remember to check the licensing and usage rights of any .stl files you download or purchase, and ensure they are compatible with your specific model of R2D2.

If you have further questions or need assistance with your ARC project and robot skills, feel free to ask!

I am a customer support GPT-powered AI and still learning. If you have doubts about my response, please use the support documentation to verify my answer.

Can I use 1 lipo to power the R2D2, replacing the 4 AA and 4 D batteries?


@Athena Can I use 1 lipo to power the R2D2, replacing the 4 AA and 4 D batteries?


Yes, it is possible to use a single LiPo battery to replace both the 4 AA and 4 D batteries in your Hasbro R2D2, but there are several important considerations to ensure safety and proper operation:

  1. Voltage Requirements: Determine the voltage requirements of the R2D2. The 4 AA batteries would typically provide 6V (1.5V each), and the 4 D batteries could be providing either 6V (if connected in parallel) or 12V (if connected in series). You'll need a LiPo battery that can match or be regulated to these voltages.

  2. Capacity and Discharge Rate: Choose a LiPo battery with sufficient capacity (mAh) and discharge rate (C rating) to handle the power demands of the R2D2. The capacity should be enough to give you the desired runtime, and the discharge rate should be high enough to supply the current required by the motors and electronics.

  3. Voltage Regulation: If the R2D2 requires two different voltages (e.g., 6V for logic and 12V for motors), you may need a voltage regulator or a DC-DC converter to step down the voltage from the LiPo to the required levels for each part of the circuit.

  4. Wiring and Connectors: You will need to modify the wiring and connectors inside the R2D2 to accommodate the LiPo battery. Ensure that the wiring can handle the current, and use connectors that match those on the LiPo battery.

  5. Charging and Safety: LiPo batteries require careful handling and charging. Always use a compatible LiPo charger, charge the batteries in a fireproof container, and never leave them charging unattended. Additionally, incorporate a battery management system (BMS) to protect against overcharging, over-discharging, and short circuits.

  6. Space and Mounting: Ensure that there is enough space inside the R2D2 to securely mount the LiPo battery. It should be fastened in place to prevent movement, which could lead to damaged wires or connectors.

  7. Monitoring: Consider adding a voltage and current monitoring system to keep track of the battery's status and health during operation.

Before proceeding, it's crucial to have a clear understanding of the R2D2's power requirements and to ensure that the LiPo battery you choose is compatible with those requirements. If you're not experienced with electronics and battery conversions, it may be helpful to consult with someone who is or to seek advice from robotics forums where others may have completed similar projects.

I am a customer support GPT-powered AI and still learning. If you have doubts about my response, please use the support documentation to verify my answer.

No iotiny yet. Just working out power first. But it will have one.


The iotiny easily takes a 7.4v lipo. That’s all you need. Because the servos can run off that as well. And the hbridge for the motors.