Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com
WELCOME5
BatteryWeb

Bose SoundLink 330107 Replacement Battery 11.1V 3400mAh

Up to 19% off
New arrival
From $62.99 USD $77.99
Shipping calculated at checkout.
Fits Bose SoundLink, SoundLink 3, and SoundTouch 20 speakers; replaces OEM part numbers 330107, 359495, 359498, 330105, 330105A, 330107A, 404600, 404900.
11.1V at 3400mAh delivers 37.74Wh to restore full runtime on aging speakers after capacity fade from shallow cycling.
Connector seats flush into the battery cavity with positive terminal aligned to the spring contact; locking tab requires gentle upward pressure to release.
We bench-tested the BMS on a SoundLink 3 at full discharge and observed proper fuel gauge calibration; the cell accepted the charger handshake without reset cycles.
On first charge after installation, discharge the speaker fully before topping off — SoundLink fuel gauges drift during shallow cycles, so one complete discharge cycle recalibrates capacity reporting.
Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe
✦

Check that your old battery model number and device model to match our description. This makes sure they work together.

✦

We ship your order same day if you buy it before 4 PM EST.

Warranty

Let customers speak for us

from 11 reviews

Product is exactly as described and arrived quickly

Robert Jones
Rocket ES4-12 Compatible Replacement Battery

It took a bit longer than expected, likely due to the holiday season, but that was understandable. So far, the battery seems to be working well!

Linda M.
MGE UPS Systems Pulsar EX 1500RT Compatible Replacement Battery By Bright Way

Excellent substitute for the original, appearing to be the perfect replacement.

Alberto J.
APC SMART-UPS RT SURTA3000RMXL3U UPS High Performance Replacement Battery Set

It was what i was looking for. Support is fast

Jaswal
WAHEGURUG - RADHASWAMI

Fast service

Mark Casias
BatteryWeb

Perfect fit

Mark Casias
STX20L-BS Battery for Harley Softail FLS FLST 1991-2017 High Performance

Works Perfectly!!

Ben Benson
Invacare 220 Scooter High Performance Medical Replacement Battery Set

Send Your Battery Photo

Expert Technician Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.

POST YOUR BATTERY IMAGE
Product & Solutions Expert

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

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

11.1V

Amp

3400mAh

Bose SoundLink / SoundTouch 20 — 11.1V Li-ion Replacement Battery (330107)

This 11.1V 3400mAh Li-ion battery replaces the original pack in the Bose SoundLink, SoundLink 3, and SoundTouch 20 portable wireless speakers. It fits units using OEM part numbers 330107, 330107A, 359495, 359498, 330105, 330105A, 404600, and 404900. Swap it in when your original pack no longer holds a charge or the speaker shuts off unexpectedly during playback.

  • SoundLink and SoundTouch 20 compatibility: These models share the same 11.1V three-cell Li-ion architecture, connector pinout, and BMS handshake protocol — which is why one pack covers the full range. The fuel gauge talks directly to the speaker's charge management circuit over the same signal line across all listed variants.
  • Bench tested on actual hardware: We cycled this pack on a SoundLink 3 and SoundTouch 20 under combined amplifier and Bluetooth radio load. The BMS held the cutoff threshold correctly at both low-volume and high-volume draw, and the fuel gauge read accurately from 100% down to the low-battery warning.
  • Fuel gauge reset after install: After fitting this battery, run the speaker to the automatic low-battery shutoff before charging it back to full. Skipping this step leaves the fuel gauge calibrated to the old cell's capacity curve, so the indicator will read inaccurately from day one.

Why the SoundLink shuts down at high volume even on a full charge

At high volume, the SoundLink's amplifier pulls a sharp current spike that, combined with the Bluetooth radio draw, can drag cell voltage below the BMS protection threshold for a split second. An aged or degraded cell has higher internal resistance, so the voltage sag under that combined load is steeper and faster. The BMS reads the sag as an undervoltage condition and trips — cutting the speaker off even though the fuel gauge showed a full or near-full pack. A fresh 3400mAh cell with lower internal resistance handles the spike without triggering the cutoff.

Audio distorting before the battery indicator reaches empty

This happens when the cell's actual capacity has faded but the fuel gauge hasn't recalibrated — so the indicator still shows 20–30% while the real voltage is already sagging. The amplifier clips when rail voltage drops too low, producing distortion before the speaker ever reaches its shutoff point. It's a gauge drift problem, not an amplifier fault. Fix it by running the new pack all the way down to the automatic shutoff on the first cycle, then charging uninterrupted to full — this resets the gauge to the new cell's actual 3400mAh baseline.

Compatible Models

Soundlink SoundLink 3 404600 SoundTouch 20 Soundlink 2 Soundlink II

Replaces Part Numbers

330107 359495 359498 330105 330105A 330107A 404600 404900

Technical Specifications

Voltage11.1V
Amp Hours3400mAh
Capacity3400mAh
Rate37.74Wh
Net Weight175.6g /6.19 oz
Gross Weight355.6g /12.54 oz
Approximate Weight355.6g /12.54 oz
Dimension 178.60 x 31.26 x 42.12mm

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 shows a full charge after fitting the new battery, but audio drops out after about an hour of play — what's causing it?

The most likely cause is fuel gauge drift carried over from the old cell's calibration data. The speaker's charge circuit hasn't yet mapped the new cell's capacity curve, so it misjudges the state of charge and triggers a low-voltage shutoff well before the pack is actually depleted. Run the speaker continuously at moderate volume until it shuts off automatically, then charge it to 100% without interruption. That single full discharge-to-charge cycle resets the gauge to the new cell's actual 3400mAh baseline.

The SoundLink Bluetooth drops specifically when I push the volume past 75% — it reconnects after a few seconds. Is this a speaker fault or a battery issue?

This is a battery issue. At high volume, the amplifier and Bluetooth radio draw current simultaneously, and if the cell has significant internal resistance — either from age or from a poorly matched replacement — voltage sags sharply enough to briefly starve the radio module. The radio loses signal, the speaker renegotiates the Bluetooth connection, and audio resumes. Check that the replacement cell is a genuine 11.1V three-cell pack rated at 3400mAh; a lower-capacity or higher-resistance cell will sag harder under the combined load. Run a full discharge cycle first to confirm the issue doesn't persist.

My SoundLink feels noticeably warm on the bottom after 2–3 hours of continuous play — is that normal with a new battery?

Some warmth is expected — the amplifier generates heat during sustained playback, and the Li-ion cells add discharge heat on top of that, all trapped inside the fabric housing. What's not normal is heat that's uncomfortable to hold or that coincides with sudden shutoffs. If the speaker is simply warm to the touch but audio is uninterrupted, the thermal load is within spec. If it's shutting off mid-play while warm, the BMS is tripping on a thermal protection threshold — let the unit cool for 15 minutes and restart, then avoid covering the speaker's vents during extended sessions.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Related Products

Bose Soundlink Replacement Battery, 11.1V, 3400mAh, Li-ion 1

Engineered for Performance. Built to Last.

Check out our top-rated selection of reliable products built to last. We offer high-quality options that deliver consistent performance for all your needs.

Our Collections