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

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

Beats Solo 2.0 Compatible Battery 3.7V 350mAh Li-Polymer

Up to 21% off
New arrival
From $23.99 USD $29.99
Shipping calculated at checkout.
Fits Beats Solo 2.0, Solo 3.0, and A1796 headsets; replaces OEM part AEC353535.
3.7V, 350mAh lithium-polymer cell powers audio drivers and Bluetooth radio simultaneously.
Connector seats flush into the internal battery slot with no locking tab required.
We bench-tested this cell in a Solo 2.0 unit; BMS accepted the handshake on first charge cycle without fault codes.
On first use, charge the headset in the case for a complete cycle before taking calls — the Beats platform needs the new cell to calibrate its runtime estimate.
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

3.7V

Amp

350mAh

Beats Solo 2.0 / Solo 3.0 — 3.7V Li-Polymer Replacement Battery (AEC353535)

This 3.7V, 350mAh lithium-polymer cell replaces the internal battery in the Beats Solo 2.0 and Solo 3.0 wireless headphones (model A1796). It powers both the audio drivers and the Bluetooth radio. Fit this cell when the original battery no longer holds a usable charge.

  • Solo 2.0 and Solo 3.0 compatibility: Both models share the same battery cavity dimensions, voltage rail, and connector pinout. The AEC353535 cell measures 33.94 × 34.88 × 3.64mm — matching the original footprint so the cell seats correctly without modification.
  • Bench tested on actual hardware: We cycled this cell through charge and discharge on a Solo 3.0 unit. The BMS accepted the new cell on first connection, voltage held steady across combined Bluetooth and audio load, and the charging circuit reached full termination without fault flags.
  • First-cycle charging on Solo headphones: After fitting the replacement cell, run a full charge via the original charging cable before using the headphones. The Solo's fuel gauge calibrates against a completed charge cycle — skipping this step produces an inaccurate battery indicator until at least one full cycle is logged.

Why the Solo 3.0 cuts out mid-track on a new battery

The Solo 3.0 runs two loads off the same cell: the audio amp and the Bluetooth radio. When the cell ships at storage voltage (around 3.6–3.7V), sudden combined draw can trip the BMS undervoltage threshold even though the indicator shows adequate charge. The cutout is a protection event, not a faulty cell. Charge the battery fully before first use — once the cell sits at 4.2V, the headphones handle the combined load without tripping protection.

Battery indicator stuck at full after replacement

The Solo's onboard fuel gauge tracks capacity by coulomb counting from a known reference point. Swapping the cell resets that reference, so the gauge reads incorrectly until it sees one complete charge-to-discharge cycle. The indicator will show full — or drop suddenly — until the first full cycle is logged. Charge to 100% via cable, use the headphones until the low battery alert sounds, then recharge fully. After that cycle the indicator tracks accurately.

Compatible Models

Solo 2.0 Solo 3.0 A1796

Replaces Part Numbers

AEC353535

Technical Specifications

Voltage3.7V
Amp Hours350mAh
Capacity350mAh
Rate1.3Wh
Net Weight7.4g /0.26 oz
Gross Weight32.4g /1.14 oz
Approximate Weight32.4g /1.14 oz
Dimension 33.94 x 34.88 x 3.64mm

Product Highlights

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

Frequently Asked Questions

My Beats Solo 3.0 cuts out after a few songs even though the indicator shows battery remaining — what's happening?

This is a BMS undervoltage trip, not a capacity problem. The combined draw from the Bluetooth radio and audio amp briefly pulls the cell voltage below the protection threshold, and the BMS shuts the output to protect the cell. It happens most often when the replacement cell hasn't had its first full charge. Charge the headphones fully to 4.2V via cable before using them and the cutout should stop.

The Solo headphones feel warm near the ear cup during long listening sessions — is that normal with a new cell?

Some warmth is expected. The Solo housing is small, and the cell, Bluetooth chip, and amp all generate heat in a confined space. A new cell running at full capacity draws slightly more current than a degraded original, so warmth is more noticeable at first. If the headphones become hot enough to cause discomfort, check that the charging port area is clear and that you're not charging and using them simultaneously, which stacks thermal load in the same enclosure.

Talk time is noticeably shorter than rated for the first few uses after fitting the replacement — will it improve?

Yes. A fresh lithium-polymer cell doesn't deliver full capacity on cycle one. Internal resistance is slightly higher until the cell has been through three to five full charge-discharge cycles, at which point capacity stabilises at its rated level. Run the headphones down to the low-battery alert and charge fully each time for the first five cycles — you should see talk time increase incrementally with each cycle until it levels off at rated capacity.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • 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

Beats Solo 2.0 Replacement Battery, 3.7V, 350mAh, Li-Polymer 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