Logitech Mm50 Battery

Updated October 6, 2026

Overview

Product sourcing insights & recommendations

27 来源

The Logitech mm50, a portable iPod speaker dock released in 2005, remains a subject of niche interest for battery replacement due to its high-quality sound and aging original Li-ion cells. The market for its replacement battery is characterized by specialized third-party manufacturers providing compatible 18650 packs as the device is long discontinued by Logitech. Ifixit Ilounge Rainydaymagazine

Product Specifications

The Logitech mm50 uses a single-cell lithium-ion battery pack with a specific connector for temperature monitoring. Ifixit Justanswer

* Cell Type: 18650 Lithium-Ion (Single cell). Youtube

* Voltage: 3.7V. Remybattery Batterymart

* Capacity: Originally 2200mAh, though modern replacements often offer up to 3000mAh for longer runtime. Amazon Batteryclerk

* Connector: 3-wire plug (Red: +, Black: -, White: Thermistor/NTC). Ifixit

* Dimensions: Approximately 66mm x 18.5mm. Batteryclerk

Market Trends & Insights

* E-Waste Prevention: A significant portion of the "mm50 battery" market is driven by DIY enthusiasts and repair forums (like iFixit) aiming to extend the life of "vintage" high-fidelity portable speakers. Ifixit Youtube

* Capacity Upgrades: There is a growing trend of "re-celling" these units with high-capacity 18650 cells (e.g., 3000mAh+) to improve battery life beyond the original factory specs. Amazon

* Global Supply: Most compatible replacement packs (like the URC-MM50) are manufactured in China (Dongguan/Shenzhen region) and distributed via specialized battery retailers. Remybattery Batterymart

* Power Supply Sensitivity: Users report that the mm50's internal charging circuit is sensitive; using an unregulated 12V adapter can damage internal 16V capacitors, which further drives the need for technical troubleshooting alongside battery replacement. Justanswer Rainydaymagazine

The provided file includes technical alternatives for 3.7V 18650 speaker battery packs that meet the mm50's requirements.

Based on these findings, you can continue with:

Sources & References

27 sources cited · Verified industry data & reports

Cameron Sino 3000mAh Battery for Logitech MM50, Pure- ...

Amazon.com

Sino 3000mAh Battery for Logitech MM50, Lithium Ion batteries required. 2600mAh 3.7V Replacement Battery … 2600mAh Li-ion

Logitech Pure-Fi Anywhere Speaker 1st MM50 ...

BatteryClerk.com

Logitech Pure-Fi Anywhere Speaker 1st MM50 Speaker Replacement Battery ; Capacity · 2200mAh (2.2Ah) ; Type · Li-ion ; Color · Black ; Dimensions · 2.59 in. L x 0.79 in.

Looking for replacement battery for Logitech MM50 S- ...

iFixit

I have a Logitech MM50 S-0173A speaker dock. Anyone have any clues as to where I can find a replacement battery for these iPod speakers from Logitec? I've ...

Troubleshooting Logitech MM50 Portable Speakers for iPod

JustAnswer

A replacement battery can be found with the following specifications: Type: Li-ion 18650 3.7V 2200mAh. The battery pack is located under the speakers.

Replacement Logitech MM50 Wireless Speaker Battery

Battery Mart

BM Part #: URC-MM50 Voltage: 3.7 Volt Capacity: 2200 mAh Type: Lithium Length: 2.2" Diameter: 0.7" Shipping Weight: 0.10Lbs (1.6 oz) Warranty: 6 Month

Logitech mm50 & Pure Fi anywhere batteries - iLounge Forums

iLounge Forums

Logitech is designing the mm50, Lithium Ion batteries can only be recharged so many times. some guidance from Logitech on specs, etc would be ...

Logitech Mm50 Battery

Overview

Product Specifications

Market Trends & Insights

Replacement Battery For Logitech Mm50 3.7v 2200mah 18650 3 Wire Connector

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Sources & References