Acer Aspire 4250 11.1V Replacement Battery 31CR19/652
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Acer Aspire 4250 11.1V Replacement Battery 31CR19/652 - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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
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
⚠️ 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.
Acer Aspire 4250 11.1V Replacement Battery 31CR19/652 - is backordered and will ship as soon as it is back in stock.
Voltage
11.1V
Amp
8800mAh
Acer Aspire 4250 Series — 11.1V Li-ion Replacement Battery (AS10D31 / 31CR19/652)
This 11.1V, 8800mAh Li-ion battery replaces the original cell in the Acer Aspire 4250 and its variants, including the 4250-E352G50MI, 4250G, and 4250Z. It restores portable power to the notebook when the factory cell has degraded or failed. Capacity figure is 8800mAh (97.68Wh) as rated on this unit.
- Aspire 4250 series compatibility: The Aspire 4250 family shares a common 11.1V three-cell rail and a standardised SMBus connector. All variants in this series use the same BMS handshake protocol, so one cell covers the full range of AS10D31, AS10D41, AS10D71, and related OEM part numbers without modification.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the Aspire platform. The BMS communicated correctly with the system, charge acceptance reached full capacity, and the protection circuit triggered cleanly at the low-voltage cutoff threshold without forcing a hard shutdown.
- Post-swap calibration on the Aspire 4250: After installing, run one full discharge to hibernate-cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that typically appears after every cell swap on this platform.
Why the Aspire 4250 reports poor battery health immediately after a new cell is fitted
The Aspire BIOS reads health data from EEPROM registers carried over from the old cell's communication history. When a new cell is installed, those registers don't match the fresh chemistry, so the BIOS flags it as degraded before any cycles have run. This is a firmware interpretation issue, not a fault with the replacement cell. One full discharge-to-hibernate followed by a complete uninterrupted charge gives the BIOS enough data to rewrite its health estimate accurately.
Aspire 4250 shutting down at 20–30% charge shown on screen
This happens when the fuel gauge IC hasn't calibrated against the new cell's actual voltage curve. The OS reads a percentage from a table built around the old cell's discharge profile, so the displayed figure and real cell voltage diverge. Under full CPU and display load, the cell hits its low-voltage cutoff before the gauge reaches zero. Run two complete discharge-to-hibernate cycles followed by full charges — after that the gauge tracks the new cell's curve and the cutoff aligns with the displayed percentage, typically below 5%.
Compatible Models
Replaces Part Numbers
Technical Specifications
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
The Aspire 4250 BIOS is showing the battery Wh rating as lower than the spec on the new cell — is something wrong?
The Wh figure the BIOS displays is read from the EEPROM data embedded in the battery's communication chip, which stores the rated value from the original cell design. A replacement cell with a higher actual capacity can still report a lower Wh number if its EEPROM is programmed to the base-spec rating. This is a data mismatch, not a defect — the cell still delivers its full capacity under load. Confirm actual behaviour by running a full discharge cycle and checking whether the laptop sustains use well past what the stated Wh figure would suggest.
New battery installed in the Aspire 4250 but the OS fuel gauge jumps erratically — reads 67%, then 43%, then 80% within minutes of unplugging
The fuel gauge IC on the Aspire 4250 motherboard builds its charge-state model from accumulated cycle data on the previous cell. With a new cell fitted, that model is mismatched to the new chemistry's voltage curve, causing the gauge to misread state-of-charge as the cell moves through unfamiliar voltage bands. Two full discharge-to-hibernate cycles followed by uninterrupted charges to 100% give the IC enough reference points to rebuild an accurate model. After those two cycles, erratic jumps should stop and the gauge should track within a few percent of actual.
Replaced the battery in the Aspire 4250 but Windows shows it as "plugged in, not charging" even with a known-good adapter
The Aspire BIOS includes a charge-threshold routine that can suspend charging if it detects a cell voltage mismatch on first contact — it reads the new cell as outside its expected initialisation window. Shut the laptop down completely, disconnect the AC adapter, hold the power button for 15 seconds to drain residual board power, then reconnect AC before powering on. This forces the charging controller to re-initialise and re-read the cell voltage from cold, which in most cases clears the "not charging" state and allows the charge cycle to begin normally.
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