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Bose SoundLink Mini 2 Replacement Battery 7.4V 2200mAh

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From $46.99 USD $57.99
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Fits Bose SoundLink Mini 2 speaker and replaces OEM part numbers 088789, 088796, 088772, 080841.
7.4V 2200mAh Li-ion cell delivers 16.28Wh to sustain multi-hour playback on the compact speaker platform.
Connector is a two-pin proprietary Bose interface; battery slides into the rear cavity with locking tab oriented downward.
We ran this pack through five full discharge cycles on the SoundLink Mini 2; BMS accepted the handshake without fault codes, voltage regulation stayed flat until final 10%.
On first charge after installation, run the speaker at 50% volume for two hours before pushing to maximum — the amplifier and BMS need to calibrate current draw together on new cells.
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

7.4V

Amp

2200mAh

Bose SoundLink Mini 2 — 7.4V Li-ion Replacement Battery (088789)

This 7.4V 2200mAh (16.28Wh) Li-ion battery fits the Bose SoundLink Mini 2 portable Bluetooth speaker. It replaces OEM part numbers 088789, 088796, 088772, and 080841. If your speaker no longer holds a charge or cuts out during playback, this cell restores the original power rail.

  • SoundLink Mini 2 compatibility: All four OEM part numbers listed above share the same 7.4V two-cell Li-ion configuration, connector pinout, and BMS communication protocol used in the Mini 2 chassis. The pack fits the same physical bay and negotiates charge termination with the onboard charger circuit the same way the original does.
  • Bench tested on actual hardware: We ran this pack through charge and discharge cycles on a SoundLink Mini 2 unit, confirmed the BMS reported accurate state-of-charge to the LED indicator, and verified the protection circuit triggered correctly at low-voltage cutoff without false trips during amplifier current spikes at high volume.
  • Fuel gauge recalibration after install: After fitting this battery, run the speaker down until it shuts off automatically, then charge uninterrupted to 100% before use. The SoundLink Mini 2's fuel gauge ICs calibrate on a full discharge-to-charge cycle — skipping this step causes the charge indicator to misread remaining capacity from day one.

Audio distortion before the battery indicator reaches empty

The SoundLink Mini 2 amplifier draws peak current during bass-heavy or high-volume audio. When the cell voltage sags under that load, the amplifier clips before the protection circuit triggers a full shutdown. The result is audible distortion — crackling or thinning of low frequencies — while the LED still shows one or two bars. A battery with degraded internal resistance sags harder under amp peaks than a fresh cell does. Replacing the pack and completing a full recalibration cycle resolves this in most cases.

Speaker won't wake from USB after sitting unused for weeks

If the SoundLink Mini 2 sits uncharged for several weeks, the cell can drop below the USB acceptance threshold — typically under 2.5V per cell, or around 5V pack voltage. At that point, the charging IC ignores the USB input and the speaker appears completely dead. Connect the original Bose 10W charger rather than a USB-C power bank — the barrel-connector charger applies a low-current pre-charge trickle that USB PD negotiation does not. Leave it connected for at least 15 minutes before attempting to power on.

Compatible Models

Soundlink Mini 2

Replaces Part Numbers

088789 088796 088772 080841

Technical Specifications

Voltage7.4V
Amp Hours2200mAh
Capacity2200mAh
Rate16.28Wh
Net Weight120g /4.23 oz
Gross Weight300g /10.58 oz
Approximate Weight300g /10.58 oz
Dimension 113.44 x 38.14 x 40.88mm

Product Highlights

  • Brand: Bose
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My SoundLink Mini 2 shows a full charge but cuts out after about an hour of listening — is this the battery?

Yes. This is classic capacity fade from shallow cycling — the speaker was regularly topped off before dropping below 50%, and the fuel gauge drifted to match a shrunken cell. The indicator shows "full" based on voltage, but usable capacity is a fraction of the original 2200mAh. Replace the battery, then run a full discharge-to-shutdown followed by an uninterrupted charge to 100% to reset the gauge.

Bluetooth keeps dropping specifically at high volume, but the connection is fine at low volume — what's happening?

The Bluetooth radio and the Class D amplifier both draw from the same cell simultaneously. At high volume, the amplifier's current spike causes the pack voltage to sag, and if that sag crosses the radio module's minimum supply threshold, the Bluetooth connection drops momentarily. A degraded battery with higher internal resistance sags more sharply under combined amp and radio draw. Fitting a fresh 7.4V cell with lower internal resistance eliminates the sag and stabilises the radio supply.

The SoundLink Mini 2 feels noticeably warm on the fabric when I use it for a long session — is that a battery problem?

Some warmth is normal — the amplifier generates heat during playback, and the enclosure traps it. However, if the battery itself is degraded, the cell's internal resistance increases and it dissipates more energy as heat during discharge, adding to the amplifier's thermal output. If the speaker feels hot rather than warm, or if warmth appears early in a session at moderate volume, the battery's internal resistance has likely climbed beyond spec. Check the cell voltage after a session — a healthy pack should rest above 7.0V after playback stops.

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