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Black rectangular lithium-ion battery pack, 70 by 40 by 21 millimetres

Cameron & Co

Cameron & Co DS-CS-MEF919MX 7.4V 3400mAh Li-ion battery

SKU CH-AM5Y-G4ASK

Replacement lithium-ion battery for Medela Freestyle breast pumps, 7.4 V 3400 mAh capacity

  • Product typeHome Electronics Battery
  • Compatible with Medela Freestyle Breast Pump
  • 4V 3400mAh capacity provides 25.16Wh runtime
  • Lithium-ion chemistry for reliable rechargeable power
  • Compact 70.00 x 40.10 x 21.00mm fits original slot
  • Replaces part numbers 101034761, 67060, 919.7010

Cameron Sino DS-CS-MEF919MX replacement battery

This 7.4 V lithium-ion pack delivers 3.4 Ah and 25.16 Wh for the Medela Freestyle breast pump. It matches the original part numbers 101034761, 67060 and 919.7010. The cell chemistry is rated for 100 % OEM compatibility. A single black unit is supplied in new condition.

Lithium-ion chemistry and fixed voltage

The pack operates at a nominal 7.4 V and cannot be used with devices that require a different voltage or cell chemistry. Capacity is fixed at 3400 mAh, so run time is determined solely by the pump's current draw. No charging circuit is included; the pump manages charging internally. Physical size is 70.00 × 40.10 × 21.00 mm, limiting fit to the original battery compartment.

Direct swap for the Freestyle factory cell

This unit replaces the original Medela Freestyle battery when it no longer holds a useful charge. The upgrade is worthwhile when the pump's portable run time has fallen below clinical or personal needs. It is not suitable for other Medela models or third-party pumps that use a different connector or voltage. Buyers needing a higher capacity or a different form factor must look elsewhere.

How it compares

Measured against everything we stock in AV Accessories & Components, at today’s prices. Recalculated every night.

Price $31.99
Cheaper than about 58% of the 3,838 comparable items (median $41.99).

Specifications

Product
Brand nameCameron Sino
Model nameDS-CS-MEF919MX
Product typeHome Electronics Battery

Questions about this item

Which capacity should I choose for my Medela Freestyle pump?

This pack supplies 3400 mAh at 7.4 V, matching the original 25.16 Wh rating for the Freestyle breast pump.

What does the 3400 mAh rating mean in daily use?

It delivers the same 25.16 watt-hours as the factory cell, so run-time per charge mirrors the original battery.

What connector standard does this battery use and what voltage does it provide?

It is a direct-fit Li-ion cell for the Freestyle pump, outputting 7.4 V through the pump's proprietary connector.

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