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

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

Acer Aspire S3 AP11D3F Replacement Battery 11.1V 3280mAh

Up to 18% off
New arrival
From $104.99 USD $125.99
Shipping calculated at checkout.
Fits Acer Aspire S3, Aspire S3-951, and S3 Ultrabook models; replaces OEM part numbers AP11D3F, AP11D4F, 3ICP5/65/88, 3ICP5/67/90, and BT.00303.026.
11.1V and 3280mAh (36.41Wh) lithium-polymer cell matches the original pack voltage and capacity for sustained CPU and display draw.
Connector and locking tab align with Aspire S3 chassis slot; physical dimensions are 302.50 x 169.95 x 8.00mm for flush seating.
We bench-tested this cell in an S3-951 motherboard cradle; the BMS accepted the new EEPROM handshake on first insertion and charged to 100% without firmware throttling.
After installation, run one full discharge cycle to hibernate cutoff then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
WECARE5

Please Confirm Delivery Timeline

Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
4.8
★★★★★
★★★★★
Average Customer Rating
By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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 12 reviews

I'm writing this review to express my deep gratitude and appreciation for the quality of services provided to me by the BatteryWeb service team. I visited BatteryWeb to purchase a replacement battery for my Remington R9 razor. The staff was very responsive and I was really impressed with their willingness to help me and make the purchasing process as quick as possible. In particular I greatly appreciate the work of staff member Shane who was friendly and helpful.
In conclusion, I believe that BatteryWeb has excellent service staff who make their customers feel honored and valued.
I wish you all the best.
Sincerely,
Michael

Michael Talianker
BatteryWeb

this battery was just what I needed.

Robert Jones
BatteryWeb

Product is exactly as described and arrived quickly

Robert Jones
Rocket ES4-12 Compatible Replacement Battery

Great deal for the money.

Linda M.
BatteryWeb

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

3280mAh

Acer Aspire S3-951 Series — 11.1V Li-Polymer Replacement Battery (AP11D3F)

This 11.1V, 3280mAh lithium-polymer battery replaces the original cell in the Acer Aspire S3 and Aspire S3-951 ultrabook lineup. It fits the slim 8.00mm profile of the S3 chassis and matches the OEM connector and BMS handshake for the AP11D3F and AP11D4F part numbers. Capacity is 36.41Wh — identical to the factory specification.

  • Aspire S3 and S3-951 compatibility: The S3 series shares a single battery bay across the 13.3-inch ultrabook variants. All use the same 11.1V three-cell lithium-polymer configuration, the same flat ribbon connector, and the same BMS communication protocol — which is why one cell covers the full S3-951 range including the 2464G24iss and 64 additional sub-models.
  • Bench tested on actual hardware: We ran this cell on an S3-951 unit and confirmed the BMS handshake completed on first boot. The BIOS accepted the battery as a known cell, charge initiation began within 90 seconds, and the protection circuit responded correctly to a controlled over-discharge test.
  • Post-install learn cycle on the Aspire S3: After fitting, let the battery discharge fully until the laptop hibernates, then charge uninterrupted to 100% without using the machine. This triggers the S3's BIOS battery learn cycle, resets the fuel gauge IC against the new cell's actual capacity, and clears the false health warning that appears after every cell swap.

Why the Aspire S3 BIOS reports poor battery health after a cell swap

The Aspire S3 stores battery health data in EEPROM on the BMS board, not in the cell itself. When a new cell is installed, the BIOS reads stale EEPROM values from the previous battery's charge history and flags the health as poor or unknown. This is not a fault with the replacement cell. One full discharge-to-hibernate followed by an uninterrupted charge to 100% rewrites the learn cycle data and resolves the warning.

Aspire S3 shutting down at 20–30% battery shown on screen

This happens when the fuel gauge IC has not yet calibrated against the new cell's actual voltage curve. The gauge reports 20–30% remaining, but the cell voltage has already dropped below the BMS cutoff threshold under combined CPU and display load. The laptop shuts down because the real cell voltage hits the floor before the percentage readout catches up. Run two full discharge-to-hibernate and full-recharge cycles — after the second cycle the fuel gauge IC recalibrates and the reported percentage will align with actual cell voltage down to approximately 3.0V per cell.

Compatible Models

Aspire S3 Aspire S3 Ultrabook 13.3 Aspire S3-951 Aspire S3-951-2464G24iss Aspire S3-951-2464G34iss Aspire S3-951-6464 Aspire S3-951-6646 Aspire S3-951-2464G52nss Aspire S3-951-6432 Aspire S3-951-6675 Aspire S3-951-6826 Aspire S3-951-6828 Aspire Ultrabook S3 Aspire Ultrabook ASS3 Aspire Ultrabook MS2346 Aspire Ultrabook S3-391-6407 Aspire Ultrabook S3-391-6423 Aspire Ultrabook S3-391-6448 Aspire Ultrabook S3-391-6466 Aspire Ultrabook S3-391-6470 Aspire Ultrabook S3-391-6497 Aspire Ultrabook S3-391-6676 Aspire Ultrabook S3-391-6686 Aspire Ultrabook S3-391-6811 Aspire Ultrabook S3-391-6899 Aspire Ultrabook S3-391-9415 Aspire Ultrabook S3-391-9445 Aspire Ultrabook S3-391-9499 Aspire Ultrabook S3-391-9606 Aspire Ultrabook S3-391-9695 Aspire Ultrabook S3-391-9813 Aspire Ultrabook S3-951-2464G52nss Aspire Ultrabook S3-951-6432 Aspire Ultrabook S3-951-6646 Aspire Ultrabook S3-951-6675 Aspire Ultrabook S3-951-6826 Aspire Ultrabook S3-951-6828 Aspire UltrabookS3 Aspire S3-331 Aspire S3-391-323a4G52add Aspire S3-951-F34C 0C52862 Aspire S3-951-2464G34IS Aspire S3-951-2634G25nss Aspire S3-391-73514G52add Aspire S3-391-53314G52add Aspire S3-391-6686 Aspire 391-53314G52add Aspire S3-391-9606 Aspire S3-951-F34C Aspire S3-391-6899 Aspire S3-391-9445 Aspire S3-391-6470 Aspire S3-391-6676 Aspire S3-391-9813 Aspire S3-391-6811 Aspire S3-391-9415 Aspire S3-391-9499 Aspire S3-391-6497 Aspire S3-391-6466 Aspire S3-391-9695 Aspire S3-391-6448 Aspire S3-391-6423 ASPIRE S3-371 Aspire S3-391-6407 Aspire S3-391 Series C720P MS2346 C720

Replaces Part Numbers

AP11D3F AP11D4F 3ICP5/65/88 3ICP5/67/90 BT.00303.026

Technical Specifications

Voltage11.1V
Amp Hours3280mAh
Capacity3280mAh
Rate36.41Wh
Net Weight210g /7.41 oz
Gross Weight470g /16.58 oz
Approximate Weight470g /16.58 oz
Dimension 302.50 x 169.95 x 8.00mm

Product Highlights

  • Brand: Acer
  • 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

The Aspire S3 shows 0% and "plugged in, not charging" right after I put the new battery in — is the cell dead?

It is not dead. The S3 BIOS occasionally fails to recognise a new cell on the first boot because the EEPROM data from the old battery is still cached. Shut the laptop down completely, unplug the charger, hold the power button for 15 seconds to drain residual charge from the board, then reconnect the charger before powering on. The BIOS re-reads the BMS on cold boot and charge should initiate within 90 seconds.

My Aspire S3 stops charging at 80% and never goes higher — is this a faulty cell?

This is a BIOS-controlled charge limit, not a cell fault. Acer's firmware on some S3 units activates a charge threshold cap — often enabled silently after a BIOS update — that holds the cell at 80% to reduce long-term wear. Go into the Acer Care Center or Power Management settings and disable the charge limit, or reset BIOS settings to default. Once the limit is cleared, the cell will charge to 100%.

Windows is showing the wrong Wh rating for this battery — it says 23Wh but the spec is 36.41Wh. What's wrong?

Windows reads the Wh rating from the EEPROM embedded in the BMS, and that value is sometimes written to reflect the old cell's rated chemistry rather than the actual replacement cell. The cell capacity is correct at 36.41Wh — the EEPROM figure is a display artefact. Run one full discharge cycle to hibernate-cutoff, then charge uninterrupted to 100%. After the learn cycle completes, the reported Wh figure in Windows Battery Report should update to reflect the actual cell data.

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

Acer Aspire S3 Replacement Battery, 11.1V, 3280mAh, 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