Product Overview
The AS10B3E is a high-capacity 11.1V 6000mAh / 66Wh Li-ion replacement battery for the Acer Aspire TimelineX 3820, 3820T, 4820, 4820T and 5820T series. It restores long runtime for everyday computing and matches the original factory specification, backed by a 1-year warranty.
Specifications
| Attribute | Details |
|---|---|
| Standard Model | AS10B3E |
| Voltage | 11.1V |
| Capacity | 6000mAh / 66WH |
| Battery Type | Li-ion |
| Cell | Made in China, high quality guarantee |
| Color | Black |
| Condition | Replacement Battery (100% Brand New, 1-year warranty!) |
Replace Part Numbers
- AS10B3E
- AS10B5E
- AS10B7E
- AS10E76
- AS10B73
- AS10B41
- AS10B31
- AS10B51
Compatible Models
For Acer Aspire TimelineX Series
- For Acer Aspire 3820 Series
- For Acer Aspire 3820T
- For Acer Aspire 4820
- For Acer Aspire 4820T
- For Acer Aspire 5820T
FAQ
Does this battery fit the Acer Aspire 3820T and 4820T?
Yes. It is the exact replacement for the Acer Aspire 3820, 3820T, 4820, 4820T and 5820T TimelineX models that use the AS10B3E pack.
Is this battery difficult to install?
No. Most Aspire 3820, 4820 and 5820 models feature an external latch-release battery, making it a simple 30-second swap with no tools required.
Which part numbers does the AS10B3E replace?
It replaces AS10B3E, AS10B5E, AS10B7E, AS10E76, AS10B73, AS10B41, AS10B31 and AS10B51.
Is the AS10B3E easy to install?
Most Aspire 5553, 5625, 5745, 5820, 3820 and 4820 models use a latch-release external battery, so the swap takes seconds and needs no special tools.
Note:
This is not a complete list or inclusion of all compatible laptop models. You can open the back of your laptop to check the original battery model. If you have any compatibility questions, please contact us online.The casing is made of durable materials, the mainboard adopts advanced technology, and the battery core is produced with high-quality raw materials to ensure that it will not be damaged after long-term use.
Our products are equipped with multiple protection technologies such as overvoltage, overcurrent, and overcharge to effectively protect the safety of batteries and equipment.
China warehouse delivery method
Overseas Warehouse Shipping Times & Costs
Payment Methods
Paypal

Payments by PayPal, no PayPal account required. Paypal is safe and free for buyers.
PayPal account: Payment@batterymall.com
Account Name: ShenZhen KingSener Science and Technology Co., Ltd
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Google Pay
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Bank Transfer
Q&A
Quick FAQ:Laptop Battery Care & Troubleshooting
- What Should I Know Before Buying a Laptop Battery Replacement?A: Before buying a laptop battery replacement, confirm your laptop’s exact model number and the part number printed on the original battery. Check the battery voltage, connector, physical dimensions, and compatibility list. Do not choose a battery based on appearance alone, because similar laptop models may use different batteries. Review the seller’s warranty, return policy, and product specifications before ordering.
- How Do I Find a Compatible Laptop Battery for My Device?A: To find a compatible laptop battery, identify your laptop’s full model number and the part number on the original battery. Compare these details with the replacement battery’s compatibility list and specifications, including voltage, connector type, and dimensions. If you are unsure, contact customer support with your laptop model and original battery part number before placing an order.
- Can I leave my laptop plugged in 24/7?Yes, the built-in TI chip prevents overcharging. Tip: To prevent long-term cell swelling, unplug and drain the battery to 40% twice a month.
- Why Is My Laptop Battery Not Charging?A: A laptop battery may not charge because of a faulty AC adapter, damaged charging port, loose connection, temperature protection, battery-health settings, or a worn-out battery. Confirm that you are using a compatible charger and inspect the cable and port for visible damage. Restart the laptop and review the manufacturer’s battery or charging settings. If the battery becomes unusually hot, swollen, or damaged, stop using it and seek professional assistance.
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Are BatteryMall Laptop Batteries Reliable?BatteryMall laptop batteries are designed with safety and reliability in mind. All batteries feature built-in IC protection against short-circuits, over-voltage, and overheating, helping protect the battery during normal use. They are also CE, FCC, and RoHS certified. For the best experience, choose a compatible laptop battery that matches your exact laptop model and original battery part number, and follow the installation and care instructions. BatteryMall also provides a 1-year warranty on KingSener batteries purchased from BatteryMall; see the Product Warranty page for details.