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

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

Acer AL10A31 Aspire One D255 Replacement Battery 11.1V 4400mAh

Up to 17% off
New arrival
From $98.99 USD $117.99
Shipping calculated at checkout.
Fits Acer Aspire One D255, D260, and D260-2028 netbooks; replaces AL10A31, AL10B31, BT.00603.121 batteries.
11.1V, 4400mAh capacity delivers full charge cycles for web and productivity tasks without mid-session shutdowns.
Connector slides into the bay with a locking tab that seats flush; orientation is keyed to prevent reverse insertion.
We ran full discharge-to-hibernate and recharge cycles; the BMS accepted the new cell without voltage sag under sustained CPU load.
After installation, run one complete discharge to hibernation sleep then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears inaccurate health warnings.
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

4400mAh

Acer Aspire One D255 / D260 — 11.1V Li-ion Replacement Battery (AL10A31)

This is a 11.1V, 4400mAh (48.84Wh) Li-ion battery for the Acer Aspire One D255 and D260 netbook series. It fits the original AL10A31 and AL10B31 battery positions, along with a wide range of compatible OEM part numbers listed above. Connector alignment and cell format match the factory tray on these compact netbooks.

  • D255 and D260 platform fit: Both models share the same battery bay dimensions, 11.1V rail, and BMS handshake protocol — this cell covers the full production run of both. The connector pinout and PCB lock tab are identical across all D255 and D260 variants.
  • Bench tested on actual hardware: We cycled this cell on a D255 board and confirmed BMS communication across charge, discharge, and standby states. The protection circuit tripped correctly at low-voltage cutoff without requiring a manual reset.
  • Post-install calibration on the D255/D260: After fitting this battery, run one full discharge to hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the false health warning that appears after every cell swap on these netbooks.

Why the Aspire One D255 reports poor battery health immediately after a cell swap

The D255 BIOS stores learned capacity data from the previous cell in EEPROM. When a new battery is installed, that stored data no longer matches the actual cell, so the system flags the battery as degraded or unknown. This is not a fault with the replacement cell — it is a calibration mismatch. One full discharge-to-hibernate followed by a complete uninterrupted charge allows the BIOS to rewrite the learn cycle against the new chemistry. After that single cycle, health reporting should normalise.

Aspire One D255 shutting down at 20–30% charge shown

The fuel gauge IC on these netbooks calibrates its empty-point estimate against the old cell's voltage curve. When the new cell drops voltage faster under combined CPU and display load, the IC calls empty earlier than the percentage shown. The netbook shuts down because the real terminal voltage hits the hardware cutoff before the gauge catches up. Run two or three full discharge-to-charge cycles to let the gauge IC re-map its curve against the new cell — shutdowns should move to below 5% remaining after calibration.

Compatible Models

Aspire One D255 Aspire One D260 One D260-2028 Aspire One D260-2203 Aspire One D260-2207 Aspire One D260-2344 Aspire One D260-2365 Aspire One D260-23797 Aspire One D260-2380 Aspire One D260-2440 Aspire One D260-2455 Aspire One D260-2571 Aspire One D260-2576 Aspire One D260-2680 Aspire One D260-2919 Aspire One D260-2Bkk Aspire One D260-2Bp Aspire One D260-N51B/K Aspire One D260-N51B/KF Aspire One D260-N51B/M Aspire One D260-N51B/P Aspire One D260-N51B/S Aspire One D260-N51B/SF Aspire One AOD255-A01B/K Aspire One AOD255- A01B/W Aspire One AOD255-1134 Aspire One AOD255-1203 Aspire One AOD255-1549 Aspire One AOD255-1625 Aspire One AOD255-2331 Aspire One AOD255-2333 Aspire One AOD255-2509 Aspire One AOD255-2520 Aspire One AOD255-2981 Aspire One AOD260-2028 Aspire One AOD260-2203 Aspire One AOD260-2207 Aspire One AOD260-2344 Aspire One AOD260-2365 Aspire One AOD260-23797 Aspire One AOD260-2380 Aspire One AOD260-2440 Aspire One AOD260-2455 Aspire One AOD260-2571 Aspire One AOD260-2576 Aspire One AOD260-2680 Aspire One AOD260-2919 Aspire One AOD260-2Bkk Aspire One AOD260-2Bp Aspire One AOD260-N51B/K Aspire One AOD260-N51B/KF Aspire One AOD260-N51B/M Aspire One AOD260-N51B/P Aspire One AOD260-N51B/S Aspire One AOD260-N51B/SF Aspire One D255-1134 Aspire One D255-1203 Aspire one D255-1268 Aspire One D255-1549 Aspire One D255-1625 Aspire one D255-2107 Aspire one D255-2136 Aspire one D255-2184 Aspire one D255-2256 Aspire one D255-2301 Aspire One D255-2331 Aspire One D255-2333 Aspire One D255-2509 Aspire One D255-2520 Aspire One D255-2532 Aspire One D255-2583 Aspire One D255-2640 Aspire One D255-2670 Aspire One D255-2691 Aspire One D255-2795 Aspire One D255-2929 Aspire One D255-2934 Aspire One D255-2981 Aspire One D255-2BQ Aspire One D255E Aspire One D255-N55DQ Aspire One D257 Aspire One D257E Aspire One D260-2028 Aspire One D260-2097 Aspire One D260-2BQGkk_XP616 3G Aspire One D260-2BQGss_XP616 3G Aspire One D260-2BQkk_XP316 Aspire One D260-2BQpu_XP316 Aspire One D260-2BQss_XP316 Aspire One D260-2DQkk_W7625 Aspire One D260-2DQpu_W7625 Aspire One D260-2DQss_W7625 Aspire One D260-2DQuu_W7625 Aspire one happy Aspire one happy2 Aspire One D255E-13111 Aspire One D255E-13248 Aspire One D255E-13281 Aspire One D255E-13410 Aspire One D255E-13412 Aspire One D255E-13438 Aspire One D255E-13444 Aspire One D255E-13471 Aspire One D255E-13492 Aspire One D255E-13493 D255E-13608 Aspire One D255E-13611 Aspire One D255E-13617 Aspire One D255E-13633 Aspire One D255E-13639 Aspire One D255E-13647 Aspire One D255E-13648 Aspire One D255E-13670 Aspire OneD255E-13681 Aspire One D255E-13695 Aspire One D255E-13699 Aspire One D255E-13813 Aspire One D255E-13849 Aspire One D255E-13865 Aspire One D255E-13877 Aspire One D255E-13899 Aspire One D255E-13DKK Aspire OneD255E-1482 Aspire One D255E-1643 Aspire One D255E-1664 Aspire One D255E-1802 Aspire One D255E-1858 Aspire One D255E-2659 Aspire One D255E-2677 PAV70 Aspire One D260-N51B/SF NAV70 Aspire One 522 Aspire One 522-BZ465 Aspire One 522-BZ824 Aspire One 522-BZ897 Aspire One AO522 Aspire One P0VE6 Aspire One POVE6 Aspire One D260E Aspire One E100 Aspire One 722

Replaces Part Numbers

AL10A31 AL10B31 AL10BW AL10G31 BT.00603.121 AK.003BT.071 AK.006BT.074 ICR17/65L C.BTP00.12L C.BTP00.128 BT.00303.022 BT.00603.114 LC.BTP00.128 LC.BTP00.129 LC.BTP0P.010 BT.00603.12 P0VE6 POVE6 PAV70 NAV70

Technical Specifications

Voltage11.1V
Amp Hours4400mAh
Capacity4400mAh
Rate48.84Wh
Net Weight306.6g /10.82 oz
Gross Weight486.6g /17.16 oz
Approximate Weight486.6g /17.16 oz
Dimension 204.33 x 57.67 x 30.81mm

Product Highlights

  • Brand: Acer
  • 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 Aspire One D255 shows the new battery as "0% available (plugged in, not charging)" — what's wrong?

The BIOS is reading stale EEPROM data from the old cell and has not yet accepted the new battery's identification. Disconnect the AC adapter, power the netbook down completely, then reconnect the charger before booting. If the issue persists after one boot cycle, perform a full discharge to hibernate cutoff followed by an uninterrupted charge to 100% — this forces the BIOS learn cycle to rewrite against the new cell's data.

Windows says the new battery has a design capacity of 40Wh but the spec says 48.84Wh — is the cell faulty?

This is an EEPROM reporting difference, not a cell fault. The figure Windows reads comes from the battery's embedded EEPROM, which stores the rated Wh from the cell manufacturer's spec sheet. That rated value can differ from the actual chemistry capacity by several watt-hours. Run the battery through one full calibration cycle — full discharge to hibernate, then charge to 100% — and the reported figure will often update to a value closer to the actual 48.84Wh capacity.

The Aspire One D260's fuel gauge is jumping around — showing 75%, then 60%, then back to 70% within minutes

The fuel gauge IC is estimating charge state against the voltage curve of the old, degraded cell — the new cell's curve does not match that stored model yet. Wild swings in the percentage reading are normal for the first two to three cycles after a cell swap on these netbooks. Run three consecutive full discharge-to-charge cycles without interruption, and the IC will recalibrate its slope against the new cell's actual voltage behaviour, stabilising the gauge readout.

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 One D255 Replacement Battery, 11.1V, 4400mAh, 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