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Acer Aspire 7520 Compatible Battery 11.1V 8800mAh AS07B32

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From $133.99 USD $160.99
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Replaces Acer Aspire 7520 original battery AS07B32 and cross-reference part numbers AS07B42, AS07B52, AS07B72, and LC.BTP00.008.
11.1V and 8800mAh lithium-ion delivers the same output as factory pack for unplugged runtime on aging Aspire hardware.
Connector slides straight into the battery bay slot with mechanical locking tab that seats flush against the chassis edge.
We bench-tested this cell in an Aspire 7520 unit; the BMS reported full charge at 12.6V with no early cutoff or voltage sag under typical CPU load.
After installation, run one complete discharge cycle to sleep-cutoff then charge uninterrupted to 100% — this resets the BIOS battery learn routine 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
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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
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By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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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.

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🔹 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.

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⚠️ 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

8800mAh

Acer Aspire 7520 — 11.1V Li-ion Replacement Battery (AS07B32)

This is an 11.1V, 8800mAh Li-ion replacement battery for the Acer Aspire 7520 and a wide range of Aspire 5920G, 6920, and 8920G series laptops. It cross-references over 30 OEM part numbers including AS07B42, AS07B52, AS07B72, and BT.00807.014. Capacity is 97.68Wh — higher cell count than the stock 4400mAh packs shipped with some units.

  • Aspire 7520 / 5920G / 8920G series fitment: These models share the same 11.1V three-cell-series architecture, identical connector pinout, and a common BMS communication protocol over the SMBus line. One cell pack fits the full platform without firmware conflicts.
  • Bench tested on actual hardware: We ran this cell on an Aspire 7520 and an 8920G unit. The BMS handshook within two minutes of insertion, charge current ramped correctly through CC and CV phases, and the protection circuit tripped cleanly at under-voltage during a full discharge cycle.
  • First-cycle reset on Acer Aspire units: After fitting, run the laptop down to hibernate cutoff on battery only — no AC during discharge — then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell data and clears the inaccurate health warning that appears after every cell swap.

Why the Aspire 7520 BIOS reports poor battery health after a cell swap

The Aspire platform stores learned capacity data in EEPROM on the battery's BMS board. When a new cell is installed, the BIOS reads residual EEPROM values from the old pack and flags a health mismatch — even when the replacement cell is electrically sound. This is not a fault with the new battery. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% rewrites the learn cycle data. After two to three complete cycles, the BIOS health indicator will reflect actual cell capacity.

Aspire 7520 shutting down at 20–30% charge shown on screen

This happens when the fuel gauge IC has not yet calibrated against the new cell's voltage curve. The gauge predicts remaining charge using data from the degraded original cell, so it misreads the voltage cliff where the new cell still has capacity. Under combined CPU and display load, voltage sag can also push the cell below the BMS cutoff threshold before the gauge reaches 0%. Discharge fully to hibernate cutoff twice in succession — this recalibrates the fuel gauge IC to the replacement cell's actual voltage profile. After recalibration, the shutdown point should align with 5% or below.

Compatible Models

Aspire 7520 Aspire 6920-6621 Aspire 5920G-302G25Hi Aspire 8920G-934G50Bn Aspire 5920-3A2G16Mi Aspire 6920G-934G32Bn Aspire 5920G-302G25Mn Aspire 7720Z-1A2G16Mi Aspire 5920G-102G16 Aspire 7720G-702G50Hn Aspire 5920G-602G20HN Aspire 7720G-3A2G32Mi Aspire 5920G-302G25 Aspire 7520G-502G32Mi Aspire 5920G Aspire 7720-3A2G12Mi Aspire 6920G-832G25Bn Aspire 5520G-402G25Mi Aspire 7720G-302G25Mi Aspire 6920-6731 Aspire 5520 Aspire 8920-6671 Aspire 7520-5115 Aspire 6920-642 Aspire 6920G-6A4G25Mn Aspire 6920 Aspire 5920G-302G25Hn Aspire 8920G-834G32Bn Aspire 5920-1A2G16Mi Aspire 6920G-834G32Bn Aspire 5920G-3A2G25Mn Aspire 7720Z Aspire 5920G-602G16Mn Aspire 7720G Aspire 5920G-602G25Mn Aspire 7720G-1A2G16Mi Aspire 5920-6582 Aspire 7720G-603G50Hn Aspire 8920G-932G32Bn Aspire 5920 Aspire 7720G-302G32Hi Aspire 5520-6A2G12Mi Aspire 7720G-1A2G24Mi Aspire 6920-6610 Aspire 7520-6A1G08Mi Aspire 8920-6048 Aspire 7520-5823 Aspire 6920-6864 Aspire 5920-302G16MN Aspire 8920G-934G64Bn Aspire 5920-302G12Mi Aspire 8920G-6A4G32Bn Aspire 5920G-302G16MN Aspire 6920G-814G32Bn Aspire 5920G-302G20H Aspire 7720ZG-3A1G16Mi Aspire 5920G-702G25Hn Aspire 7720G-602G50Mn Aspire 5920G-302G20N Aspire 7520G-502G25Mi Aspire 5920-6661 Aspire 7720G-5A2G16Mi Aspire 8920G Aspire 5520-5A2G16 Aspire 7720G-302G25Mn Aspire 8920-6030 Aspire 5520G Aspire 7720-1A2G16Mi Aspire 6920-6428 Aspire 7520-5618 Aspire 8920 Aspire 5920G-302G16N Aspire 6920G Aspire 7520G Aspire 7720 Aspire 8920Gm Aspire AS5720-4230 Aspire AS5720-4516 Aspire AS5720-4662 Aspire AS5720-4984 Aspire AS5920-6329 Aspire AS5920-6444 Aspire AS6920-6422 Aspire AS6920-6508 Aspire AS6920-6886 Aspire AS6920-6973 Aspire AS7520-5823 Aspire AS7520-5907 Aspire AS7720-6135 Aspire AS5520-5908 Aspire 5310 Aspire 5220G Aspire 5310G Aspire 5315 Aspire 5315G Aspire 5710 Aspire 5710G Aspire 5720 Aspire 5720G Aspire 5720Z Aspire 5720ZG Aspire 5910 Aspire 5910G Aspire 7320 Aspire 7320G Aspire 7520Z Aspire 7520ZG Aspire 7720ZG Aspire 5230 Aspire 5235 Aspire 5330 Aspire Aspire 5530 Aspire 5530G Aspire 5535 Aspire 5710Z Aspire 5710ZG Aspire 5715 Aspire 5715Z Aspire 5730 Aspire 5730Z Aspire 5730ZG Aspire 5735 Aspire 5735Z Aspire 5739 Aspire 5739G-6132 Aspire 5739G-6959 Aspire 8930G

Replaces Part Numbers

AS07B32 AS07B42 1010872903 AS07B52 AS07B72 AS07B31 AS07B41 AS07B51 AS07B71 AS07BX1 AS07BX2 LC.BTP00.008 3UR18650Y-2-CPL-ICL50 934T2180F BT.00603.033 BT.00604.018 BT.00605.015 BT.00607.010 BT.00803.024 BT.00804.020 BT.00804.024 BT.00805.011 BT.00807.014 BTP-AS5520G ICK70 ICL50 ICW50 ICY70 JDW50 MS2221 ZD1 LC.BTP00.007

Technical Specifications

Voltage11.1V
Amp Hours8800mAh
Capacity8800mAh
Rate97.68Wh
Net Weight582g /20.53 oz
Gross Weight762g /26.88 oz
Approximate Weight762g /26.88 oz
Dimension 202.00 x 68.40 x 38.80mm

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 7520 shows the battery as "unknown" or 0% in Windows right after I fitted the new cell — is it dead?

It is not dead. The fuel gauge IC on the Acer Aspire platform reads EEPROM data written by the previous battery pack, and a fresh cell has no matching history stored yet. Windows reports "unknown" or 0% until the BMS and OS sync through at least one complete cycle. Run the laptop down to hibernate on battery only, then charge uninterrupted to 100% without interruption. After two full cycles the gauge will report correctly.

Windows and the Acer system info tool are showing the wrong Wh rating — it says something lower than 97.68Wh. Is the capacity actually smaller than listed?

No. The Wh figure shown in system tools is pulled from the EEPROM on the battery's BMS board, which stores the rated value programmed at the factory — not a live measurement of actual cell capacity. The physical cells in this pack are 8800mAh / 97.68Wh. The displayed figure recalibrates over charge cycles as the BMS updates its learned capacity register. If the number still looks wrong after three full charge-discharge cycles, check Battery Report in Windows (powercfg /batteryreport) — the "Design Capacity" line is the accurate reference.

The new battery stopped charging at about 80% and won't go higher — the light on the charger is still on. What's wrong?

This is a BIOS-controlled charge threshold, not a fault with the cell or the charger. Some Acer Aspire BIOS versions ship with a charge limit set to 80% to reduce long-term cell stress when the laptop runs on AC most of the time. Open the Acer Power Management utility or check BIOS settings under the Battery section — the limit is usually labelled "Battery Health Mode" or "Charge Threshold." Disable it or set the limit to 100%, then unplug and replug the AC adapter to force a fresh charge cycle.

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