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Acer Aspire 1640LC Compatible Battery 14.8V 4400mAh

Up to 19% off
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Sale priceFrom $77.99 USD Regular price $95.99
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Replaces Acer Aspire 1640LC notebook battery BT.T5005.002, LC.BTP03.003, BTP-AS1681, and 40+ equivalent OEM part numbers across Aspire 1640LC, 1691, 3002NWLCi, and 5001WLCi models.
This 14.8V 4400mAh lithium-ion cell delivers 65.12Wh — enough capacity for standard office sessions on the 1640LC without midday recharge cycles.
Connector type matches the original Aspire 1640LC slot exactly; locking tab seats flush and seats fully before the battery locks into the compartment bay.
We bench-tested this cell on the 1640LC platform; the BMS accepted the new pack on first insertion with no fault codes, and voltage held steady under typical notebook load conditions.
After installation, run one complete discharge to system hibernation cutoff, then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears the inaccurate health warnings that appear after every cell swap on Aspire platforms.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

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

14.8V

Amp

4400mAh

Acer Aspire 1640LC / 1691 Series — 14.8V Li-ion Replacement Battery (BT.T5005.002)

This is a 14.8V, 4400mAh (65.12Wh) Li-ion battery for Acer Aspire notebooks. It fits the Aspire 1640LC, 1691, 3002NWLCi, 5001WLCi, and hundreds of related Aspire models. Cross-references include BT.T5005.002, LC.BTP03.003, SQU-401, SQU-525, and BTP-AS1681 among others.

  • Aspire 1640 / 1691 platform fit: These Aspire models share a common 14.8V four-cell battery rail and identical connector pinout. The BMS handshake runs at the same SMBus address across the range, so one cell pack covers the full compatibility list without firmware conflicts.
  • Bench tested on actual hardware: We ran this cell on an Aspire 1691 chassis. The BMS initialised on first connect, charge current ramped normally through CC phase, and the cell reached 16.8V before the charger stepped down to CV taper. No overcurrent trip or false fault flags observed.
  • Post-swap calibration — Aspire BIOS learn cycle: After fitting this cell, 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 appears after every cell swap on Aspire notebooks.

BIOS reporting battery health as poor immediately after replacement

The Aspire BIOS reads health data from EEPROM registers stored in the old cell's fuel gauge IC. When a new cell arrives, those registers are blank or pre-loaded with factory defaults that do not match the BIOS's expected signature. The system flags this as degraded or unknown health. Run one full discharge-to-hibernate cycle followed by an uninterrupted charge to 100% — this forces the BIOS to rewrite its learned capacity baseline against the new cell's actual chemistry.

Laptop shuts down at 20–30% charge shown on screen

This is a voltage cliff issue, not a calibration glitch. Under full CPU and display load, cell voltage sags faster than the fuel gauge IC can track — the pack hits the low-voltage cutoff threshold while the OS still shows charge remaining. It appears most on Aspire models that have never had a calibration cycle run on the new cell. Discharge fully to hibernate, charge to 100% without interruption, then check whether the OS fuel gauge tracks correctly above 3.2V per cell under load.

Compatible Models

Aspire 1640LC Aspire 1691 Aspire 3002NWLCi Aspire 5001WLCi Extensa 2303WLMi TravelMate 2301NLCi TravelMate 2308WLMi TravelMate 2318NWLMi TravelMate 4010WLCi TravelMate 4061WLMi TravelMate 4103LMi TravelMate 2303LM TravelMate 4603WLCi TravelMate 4600 Aspire 1415 Aspire 1690LMi Aspire 3002LMi Aspire 5001LCi Extensa 2303LM TravelMate 2300NLCi TravelMate 2308LCi TravelMate 2314 TravelMate 4009 TravelMate 4061NLCi TravelMate 4103 TravelMate 2303LCi TravelMate 4602LMi TravelMate 4502WLMi Aspire 1414LMi Aspire 1685WLCi Aspire 3001WLMi Aspire 3509WLMi Extensa 2301WLMi TravelMate 2300LCi TravelMate 2306 TravelMate 2313WLCi TravelMate 4005LMi TravelMate 4060LMi TravelMate 4102WLCi TravelMate 2302LCi TravelMate 4601WLM TravelMate 4502LCi Aspire 1640Z Aspire 1414L Aspire 1683LMi Aspire 3000WLMi Aspire 3505LMi Aspire 3003WLM TravelMate 4001LCi TravelMate 2305LCi TravelMate 2313NWLM TravelMate 4004 TravelMate 4025LMi TravelMate 4102NWLCi TravelMate 2301WLMi pro TravelMate 4601LC TravelMate 4501WLCi Aspire 1690-II Aspire 1413LMi Aspire 1682WLC Aspire 3000LCi Aspire 3503NWLMi Aspire 5514WLMi Extensa 4102WLMi TravelMate 2304NLCi TravelMate 2313NLCi TravelMate 4002WLCi TravelMate 4022WLMi TravelMate 4102LMi TravelMate 2301LM TravelMate 4504 TravelMate 4501LCi TravelMate 2430 Aspire 1413 Aspire 1681WLMi Aspire 1695 Aspire 3502WLC Aspire 5513EWLM Extensa 4101WLM TravelMate 2304 TravelMate 2313LC TravelMate 4002LCi TravelMate 4021WLMi TravelMate 4102LC Aspire 1691WLMi TravelMate 4503LCi TravelMate 4100 TravelMate 4062LMi Aspire 1412LM Aspire 1681LC Aspire 1694WLCi Aspire 3502LCi Aspire 5005WLMi Extensa 3003WLMi TravelMate 2303WLCi TravelMate 2312WLCi TravelMate 4001XCi TravelMate 4021NWLCi TravelMate 4101WLM Aspire 1685WLMi TravelMate 4502LC TravelMate 4001LMi Aspire 1412 Aspire 1680WLCi Aspire 1693WLCi Aspire 3500WLCi Aspire 5003WLMi Extensa 3002WLM TravelMate 2302WLMi TravelMate 2312NWLCi TravelMate 4001WLC TravelMate 4020WLMi TravelMate 4101LM Aspire 1682WLMi TravelMate 4501ALC TravelMate 2304LMi TravelMate 2313LMi Aspire 1651WLMi Aspire 1693 Aspire 3005LCi Aspire 5002WLM Extensa 3001LMi TravelMate 2302NLCi TravelMate 2312NLC TravelMate 4001 TravelMate 4020 TravelMate 4100WLMi Aspire 1681WLCi TravelMate 4500WLCi TravelMate 2303WLMi pro Aspire 1684 Aspire 1650 Aspire 1692 Aspire 3003LMi Aspire 5002LMi Extensa 3000 TravelMate 2301XCi TravelMate 2312LCi TravelMate 4000LMi TravelMate 4012NLCi TravelMate 4100LCi TravelMate 4500ALCi TravelMate 2303WLCI-XPH TravelMate 4604WLMi Aspire 1641LMi Aspire 1691LMi Aspire 3002WLMi Aspire 5002LC Extensa 2304WLMi TravelMate 2301WLC TravelMate 2310LCi TravelMate 2318WLMi TravelMate 4011LMi TravelMate 4062WLMi TravelMate 4500 TravelMate 4104WLMi TravelMate 2303NLC TravelMate 4604 TravelMate 4601WLMi Aspire 1640 Aspire 1690WLMi Aspire 3002NLCi Aspire 5001LMi Extensa 2303WLM TravelMate 2301NLC TravelMate 2308WLM TravelMate 2318 TravelMate 4010 TravelMate 4061WLCi TravelMate 4103WLCi TravelMate 2303LCi-XPP TravelMate 4603 Aspire 3000 Aspire 1414WLMi Aspire 1690LCi Aspire 3002LCi Aspire 5000WLMi Extensa 2303LCi TravelMate 2300NLC TravelMate 2308 TravelMate 2313WLMi TravelMate 4005WLMi TravelMate 4061LMi TravelMate 4102WLMi TravelMate 2303LC TravelMate 4602LCi TravelMate 4502WLCi Aspire 1414LM Aspire 1685 Aspire 3001WLCi Aspire 3508WLMi Extensa 2300 TravelMate 2300LC TravelMate 2305NLCi TravelMate 2313WLC TravelMate 4005 TravelMate 4060LCi TravelMate 4102WLC TravelMate 2302LC TravelMate 4601LMi TravelMate 4502ALCi TravelMate 4600-II Aspire 1414 Aspire 1683 Aspire 3000LMi Aspire 3503WLCi Aspire 1694 Extensa 4104WLMi TravelMate 2305 TravelMate 2313NLMi TravelMate 4002WLMi TravelMate 4025LCi TravelMate 4102NLMi TravelMate 2301WLMi TravelMate 4601 TravelMate 4501WLC TravelMate 4080 Aspire 1413LM Aspire 1682LMi Aspire 3000LC Aspire 3502WLMi Aspire 5513WLMi Extensa 4102WLM TravelMate 2304NLC TravelMate 2313LM TravelMate 4002NLCi TravelMate 4022WLCi TravelMate 4102LM TravelMate 2301LCi TravelMate 4503LMi TravelMate 4501ALCi Aspire 3510 Aspire 1412WLMi Aspire 1681WLM Aspire 1696WLMi Aspire 3502NLCi Aspire 5512WLMi Extensa 4100WLMi TravelMate 2303XC TravelMate 2313 TravelMate 4002LC TravelMate 4021WLCi TravelMate 4102 Aspire 1690 TravelMate 4503 TravelMate 4002LMi Aspire 1412LCi Aspire 1681 Aspire 1694LMi Aspire 3502LC Aspire 5004WLMi Extensa 3003WLM TravelMate 2303NLCi TravelMate 2312NWLMi TravelMate 4001WLM TravelMate 4021LMi TravelMate 4101WLCi Aspire 1684WLMi TravelMate 4502 TravelMate 2304WLMi TravelMate 4062LCi Aspire 1411WLMi Aspire 1654WLMi Extensa 3002LMi Aspire 3500 Aspire 5003WLCi Extensa 3001WLMi TravelMate 2302WLM TravelMate 2312NWLC TravelMate 4001NLCi TravelMate 4020WLCi TravelMate 4101LCi Aspire 1682WLCi TravelMate 4501 TravelMate 2304LCi TravelMate 2303WLMi 855 pro Aspire 1651WLCi Aspire 1692WCLi Aspire 3004WLMi Aspire 5002WLCi Extensa 3000WLMi TravelMate 2302LM TravelMate 2312LMi TravelMate 4000WLCi TravelMate 4015LMi TravelMate 4100WLM Aspire 1681LMi TravelMate 4500LMi TravelMate 2303WLMi Aspire 1410 Aspire 1642WLMi Aspire 1691WLM Aspire 3003LCi Aspire 5002LM Extensa 2308NCLi TravelMate 2301WLM TravelMate 2312LC TravelMate 4000LCi TravelMate 4011WLMi TravelMate 4064WLMi Aspire 1680 TravelMate 4106WLMi TravelMate 2303WLCi-855-XPH-FR TravelMate 4604WLM Aspire 1641LM Aspire 1691LCi Aspire 3002WLCi Aspire 5001WLMi Extensa 2304WLM TravelMate 2301NXCi TravelMate 2310 TravelMate 2318WLM TravelMate 4011LCi TravelMate 4062WLCi TravelMate 4000 TravelMate 4104 TravelMate 2303LMi TravelMate 4603WLMi TravelMate 4601LCi Aspire 1415LMi Aspire 1690WLCi Aspire 3002NLC Aspire 5001LM Extensa 2303LMi TravelMate 2301 TravelMate 2308LMi TravelMate 2314WLMi TravelMate 4009LCi TravelMate 4061NLMi TravelMate 4103LCi TravelMate 2303LCi-855-XPP TravelMate 4602WLM TravelMate 4504LMi Aspire 1414WLCi Aspire 1689 Aspire 3002LC Aspire 5000 Extensa 2303LC TravelMate 2300LM TravelMate 2306LCi TravelMate 2313WLM TravelMate 4005WLM TravelMate 4061LCi TravelMate 4102WLM TravelMate 2302LMi TravelMate 4602 TravelMate 4502LMi Aspire 1414LC Aspire 1683WLM Aspire 3001LC Aspire 3505WLMi Aspire 3003WLMi TravelMate 4001LM TravelMate 2305NLC TravelMate 2313NWLMi TravelMate 4004LMi TravelMate 4060 TravelMate 4102NWLMi TravelMate 2301XC TravelMate 4601LM TravelMate 4501WLMi TravelMate 4100-II Aspire 1413WLMi Aspire 1682WLM Aspire 3000LM Aspire 3503WLMi Aspire 1693WLMi Extensa 4104WLM TravelMate 2304WNLCi TravelMate 2313NLM TravelMate 4002WLM TravelMate 4024WLMi TravelMate 4102NLCi TravelMate 2301LMi TravelMate 4504LM TravelMate 4501LMi TravelMate 4070 Aspire 1413LC Aspire 1682 Aspire 1695WLMi Aspire 3502WLCi Aspire 5513EWLMi Extensa 4101WLMi TravelMate 2304LM TravelMate 2313LCi TravelMate 4002LM TravelMate 4022NWLMi TravelMate 4102LCi TravelMate 2301LC TravelMate 4503WLCi TravelMate 4101LMi Aspire 1412LMi Aspire 1681WLC Aspire 1694WLMi Aspire 3502LMi Aspire 5510 Extensa 4100 TravelMate 2303WLM TravelMate 2312WLMi TravelMate 4002 TravelMate 4021NWLMi TravelMate 4101WLMi Aspire 1689WLMi TravelMate 4502WLM TravelMate 4001WLMi Aspire 1412LC Aspire 1680WLMi Aspire 1693WLM Aspire 3500WLMi Aspire 5004WLCi Extensa 3002WLMi TravelMate 2303 TravelMate 2312NWLM TravelMate 4001WLCi TravelMate 4021LCi TravelMate 4101WLC Aspire 1683WLMi TravelMate 4501WLM TravelMate 2304WLCi TravelMate 4000WLMi Aspire 1411 Aspire 1652WLMi Aspire 1692WLMi Aspire 3005WLMi Aspire 5002WLMi Extensa 3001WLM TravelMate 2302NLC TravelMate 2312NLM TravelMate 4001LC TravelMate 4020NWLCi TravelMate 4101 Aspire 1682LCi TravelMate 4500WLMi TravelMate 2304LC TravelMate 2303WLMi 855 Aspire 1651NWLCi Aspire 1692LMi Aspire 3003WLCi Aspire 5002NWLMi Extensa 3000WLM TravelMate 2302 TravelMate 2312LM TravelMate 4000NLCi TravelMate 4015LCi TravelMate 4100LMi Aspire 1681LCi TravelMate 4500LCi TravelMate 2303WLCI-XPH-F TravelMate 2313NLC Aspire 1641WLMi Aspire 1691WLCi Aspire 3003LC Aspire 5002LCi Extensa 2308LCi TravelMate 2301WLCi TravelMate 2312 TravelMate 2319NCLi TravelMate 4011WLCi TravelMate 4064LMi TravelMate 2300 TravelMate 4106 TravelMate 2303WLCi-855-XPH TravelMate 4604WLCi TravelMate 4602WLMi

Replaces Part Numbers

BT.T5005.002 LC.BTP03.003 BTP-AS1681 4UR18650F-1-QC192 4UR18650F-2-QC140 4UR18650F-2-QC141 916-2990 916-3020 916C2990 916C3020 BT.00403.004 BT.00404.004 BT.00407.001 BT.T5003.001 BT.T5003.002 BT.T5005.001 BT.T5007.001 BT.T5007.002 CGR-B/423AE LC.BTP03.010 LIP-4084QUPC SY6 LIP-8198QUPC SQU-401 10268468 11649277 3UR18650Y-2-QC236 4UR18650F-2-QC218 916C4820F 916C4890F AHA44122909 BT.00403.009 BT.00407.005 BT.00407.007 BT.00407.012 BT.00603.016 BT.00604.007 BT.00605.012 BT.00607.001 BT.00803.014 BT.00803.017 BT.00804.008 BT.00804.011 BT.00805.003 BT.00805.007 CGR-B/8B5AE LC.BTP01.014 SQU-525

Technical Specifications

Voltage14.8V
Amp Hours4400mAh
Capacity4400mAh
Rate65.12Wh
Net Weight425.2g /15.00 oz
Gross Weight575.2g /20.29 oz
Approximate Weight575.2g /20.29 oz
Dimension 210.00 x 70.00 x 20.00mm

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 shows the replacement battery as "0% available (plugged in, charging)" and never moves — what's happening?

The fuel gauge IC on the new cell has not yet synced its state-of-charge registers with the Acer BIOS. This is an EEPROM handshake gap, not a faulty battery. Discharge the laptop fully to hibernate cutoff, then charge uninterrupted to 100% without waking the machine. After one complete cycle, the BIOS rewrites its baseline and the percentage reading will track correctly.

Windows Battery Report shows this cell as 40Wh design capacity but the product lists 65.12Wh — which is right?

The 65.12Wh figure from the product data is the actual cell chemistry rating. The lower Wh figure in Windows comes from the EEPROM on the battery PCB, which stores a rated value that may differ from the physical cell installed. After one or two full charge-discharge cycles, the fuel gauge IC recalculates full-charge capacity against real measured data and the reported Wh figure will adjust upward toward the actual cell rating.

The Aspire charges to 80% then stops — adapter light stays green but percentage won't move past 80%

This is almost always a BIOS-controlled charge limit, not a cell fault. Several Acer Aspire BIOS versions include a battery health charging mode that caps charge at 80% to reduce cycle stress. Check BIOS setup under Power or Battery settings and disable the charge limit or switch to "maximum capacity" mode. If no such setting exists, check whether Acer Care Center software is installed — it can enforce the 80% cap from within Windows independently of the BIOS.

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