1. Product Overview
The Medela Swing Maxi Double Electric Breast Pump is engineered for mothers seeking efficient and comfortable milk expression. This compact and portable pump features a built-in rechargeable battery, USB-C charging, and Medela's PersonalFit Flex™ funnels, designed to adapt to your breast shape for optimal comfort and milk flow. The exclusive 2-Phase Expression technology mimics a baby's natural sucking rhythm, providing a gentle yet effective pumping experience.

Image 1.1: Medela Swing Maxi Double Electric Breast Pump. The main unit is white and gray with yellow buttons, connected to two bottles with funnels.
Key Features:
- Double Pumping: Allows for simultaneous expression from both breasts, yielding an average of 18% more milk volume and higher nutritional content compared to single pumping.
- 2-Phase Expression Technology: Mimics the natural sucking rhythm of a baby, starting with a fast stimulation phase followed by a slower expression phase for efficient milk flow.
- PersonalFit Flex™ Funnels: Designed to adapt to your unique breast shape, reducing pressure on milk ducts and increasing comfort and milk volume by an average of 11%. Includes 2x 21mm (S) and 2x 24mm (M) funnels.
- Built-in Rechargeable Battery: Provides power for up to 6 pumping sessions on a full charge, offering enhanced mobility.
- USB-C Charging: Enables faster and more convenient charging.
- Quiet Operation: Noticeably quieter than previous generations for discreet use.
- BPA-Free: All parts that come into contact with breast milk are free from Bisphenol-A.
2. Components Included
Before first use, ensure all components listed below are present in your package:

Image 2.1: All components included with the Medela Swing Maxi pump.
- 1 x Swing Maxi motor unit
- 1 x USB Type-C cable and power adapter
- 2 x 150ml bottles with lids and stands
- 4 x PersonalFit Flex™ funnels (2x 21mm, 2x 24mm)
- 2 x Connectors with membranes
- 1 x Tubing set
- 1 x Instruction Manual (this document)
3. Setup and Assembly
Follow these steps to assemble your Medela Swing Maxi breast pump:
- Clean and Sanitize: Before first use, and after each use, clean and sanitize all parts that come into contact with breast milk (funnels, connectors, bottles, lids). Refer to the 'Maintenance and Cleaning' section for detailed instructions.
- Assemble the Connector: Insert the membrane into the connector body. Ensure it is seated correctly and flat.
- Attach the Funnel: Press the PersonalFit Flex™ funnel onto the connector. Ensure a secure fit.
- Attach to Bottle: Screw the assembled funnel and connector onto a Medela breast milk bottle.
- Connect Tubing: Attach one end of the tubing to the connector. For double pumping, attach both tubes to their respective connectors.
- Connect to Motor Unit: Plug the other end(s) of the tubing into the ports on the Swing Maxi motor unit. Ensure the connection is firm.

Image 3.1: Disassembled and assembled components of the Medela Swing Maxi pump, showing how parts fit together.
Charging the Battery:
The Swing Maxi features a built-in rechargeable battery. For optimal performance, fully charge the battery before first use.
- Connect the USB-C cable to the charging port on the motor unit.
- Plug the other end of the USB-C cable into the provided power adapter and then into a wall outlet.
- The battery indicator on the motor unit will show charging status. A full charge provides power for up to 6 pumping sessions.

Image 3.2: The Medela Swing Maxi motor unit connected to a USB-C charging cable.
4. Operating Instructions
Using your Medela Swing Maxi for effective milk expression:
Getting Started:
- Positioning: Sit comfortably and place the PersonalFit Flex™ funnel over your breast, ensuring your nipple is centered in the tunnel. The soft rim should create a gentle seal around your breast.
- Power On: Press the power button on the motor unit to turn on the pump.

Image 4.1: The control panel of the Medela Swing Maxi, showing the power button and controls for adjusting vacuum levels.
2-Phase Expression Technology:
The pump automatically starts in the stimulation phase, which is a faster, lighter suction designed to initiate milk flow.
- Stimulation Phase: This phase lasts for approximately two minutes or until milk starts to flow. You can adjust the vacuum level during this phase using the '+' and '-' buttons to find a comfortable setting.
- Expression Phase: Once milk begins to flow, press the 'drop' button (the button with the milk drop icon) to switch to the expression phase. This phase uses a slower, deeper suction to efficiently remove milk.
- Adjusting Vacuum: During the expression phase, continue to adjust the vacuum level using the '+' and '-' buttons to your maximum comfortable vacuum (MVC). Pumping at your MVC ensures optimal milk output.
- Pumping Duration: Pump for about 15-20 minutes per session, or until milk flow significantly slows.

Image 4.2: A woman comfortably using the Medela Swing Maxi for double breast pumping.
Video: Medela Swing Maxi Overview
Video 4.1: An overview of the Medela Swing Maxi Double Electric Breast Pump, demonstrating its compact design, portability, PersonalFit Flex funnels, and ease of use.
5. Maintenance and Cleaning
Proper cleaning and maintenance are crucial for hygiene and optimal performance of your breast pump.
After Each Use:
- Disassemble: Carefully disassemble all parts that came into contact with breast milk: funnels, connectors, membranes, bottles, and lids.
- Rinse: Rinse all disassembled parts with cold water immediately after use to remove milk residue.
- Wash: Wash parts in warm, soapy water using a mild dish soap. Use a clean brush dedicated for pump parts.
- Rinse Thoroughly: Rinse all parts thoroughly with clean water.
- Air Dry: Place parts on a clean paper towel or drying rack and allow them to air dry completely. Do not use a cloth towel, as it may transfer germs.
Daily Sanitization (Once per day):
In addition to washing, sanitize parts once a day:
- Boiling: Place disassembled, washed parts in a pot of boiling water for 5 minutes.
- Steam Sterilizer: Use a microwave or electric steam sterilizer according to the manufacturer's instructions.
- Dishwasher: Some parts may be dishwasher safe (top rack only). Consult the product packaging or Medela website for specific guidance.
Important: The motor unit and tubing should not be washed or submerged in water. The Swing Maxi features a closed system, which prevents milk from entering the tubing or motor unit. If milk is observed in the tubing, replace the tubing immediately.
6. Troubleshooting
If you encounter issues with your Medela Swing Maxi, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No suction or weak suction |
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| Pump not turning on |
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| Milk flow is slow or minimal |
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| Pump is making unusual noises |
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7. Specifications
| Feature | Detail |
|---|---|
| Model Number | 101041627 |
| Brand | Medela |
| Power Source | Electric (USB-C charging) |
| Battery | Built-in Lithium-ion (1 included) |
| Voltage | 110-220 Volts |
| Material Composition | Polypropylene (BPA-free) |
| Product Dimensions | 17.5 x 11 x 22 cm; 1.3 kg |
| Color | White and Gray |
| Certification | UL-BR 19.0744 |
| GTIN | 1220000280038 |
8. Warranty and Support
Medela products are manufactured to high-quality standards. For warranty information, please refer to the warranty card included with your product or visit the official Medela website. Keep your proof of purchase for any warranty claims.
Customer Support:
If you have questions, require assistance, or need to report a defect, please contact Medela customer support through their official website or the contact information provided in your product packaging. For additional resources and tips on breastfeeding and pumping, visit the Medela Brand Store.
Important Health Notice: The Ministry of Health advises that a breastfed child does not need a bottle, nipple, or pacifier. The use of a bottle, nipple, or pacifier can interfere with breastfeeding.





