42T4821 Battery for Lenovo ThinkPad T400s T410s Laptop - 11.1V 3900mAh 44Wh 6-Cell Li-Ion
€47.99
Tax included
The 42T4821 battery is a compatible replacement for Lenovo ThinkPad T400s and T410s laptops, with 11.1V and 3900mAh (44Wh). It is equivalent to 8 part numbers, including 42T4833 and 42T4691. New product, with 3 years warranty and 24-48h shipping from Spain.
42T4821
42T4821 Battery for Lenovo ThinkPad T400s T410s Laptop - 11.1V 3900mAh 44Wh 6-Cell Li-Ion
Replacement battery for Lenovo ThinkPad T400s and T410s. New, with 3 years warranty.
- 3900mAh / 44Wh
- 11.1V
- 6-Cell Li-Ion
- New
Key features
-
Real Capacity
3900mAh and 44Wh for reliable autonomy.
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Specific Voltage
11.1V, compatible with 10.8V systems.
-
Li-Ion Technology
Lithium-Ion cells with no memory effect.
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Guaranteed Compatibility
Designed for Lenovo ThinkPad T400s and T410s series.
Product description
The replacement battery with reference 42T4821 is specifically designed to restore the autonomy of Lenovo ThinkPad laptops. With a voltage of 11.1V and a capacity of 3900mAh (44Wh), this 6-cell battery with Li-Ion (Lithium-Ion) technology ensures stable and long-lasting performance, with no memory effect.
It is the ideal solution to replace an exhausted or defective battery in models such as the ThinkPad T400s, T410s, and T410si. This product is new and has been verified to guarantee its full compatibility and safety, including overvoltage and undervoltage protections. Being compatible with a wide list of original part numbers such as 42T4833, 42T4691, and 51J0497, it simplifies the choice of the correct replacement for your equipment.
This battery is a high-quality compatible alternative, manufactured with new components to match or exceed the original component's specifications. All batteries are individually checked in our technical service to ensure proper functioning before shipping.
Who is this product for?
For technical services and private users who need to replace the battery of a Lenovo ThinkPad T400s or T410s laptop to restore its portability.
Ideal for
- Replacement of an exhausted original battery in a Lenovo ThinkPad T410s.
- Repair of a laptop that no longer charges or whose autonomy is very reduced.
- Having a second replacement battery for long working days without access to the electrical grid.
Technical specifications
| Voltaje | 11.1 V |
|---|---|
| Capacidad | 3900 mAh |
| Energía | 44 Wh |
| Número de celdas | 6 |
|---|---|
| Tecnología de celdas | Li-Ion |
| Color | Black |
| Protección sobretensión | Yes |
|---|---|
| Protección subtensión | Yes |
Compatibility
Compatible part numbers
- 42T4821
- 42T4833
- 42T4691
- 42T4832
- 42T4522
- 42T4519
- 51J0497
- 42T4688
- 42T4690
Compatible laptop models
- Lenovo ThinkPad T400s
- Lenovo ThinkPad T410s
- Lenovo ThinkPad T410si
Always check the part number printed on your original part before ordering; if in doubt, contact us with the exact model of your device.
Frequently asked questions
How can I be sure that this 42T4821 battery is compatible with my Lenovo laptop?
To confirm compatibility, the most reliable way is to compare the part number of your original battery with our list of compatible references. Remove the battery and look for codes like 42T4821, 42T4833, or 42T4691. If your code matches, it is the correct one. You can also verify if your model is a ThinkPad T400s, T410s, or T410si. If you have doubts, contact our technical support.
Is it necessary to calibrate the battery the first time I use it?
Yes, it is recommended. To calibrate it, charge the battery to 100% with the laptop turned off. Then, turn it on and use it until it is completely depleted and the device shuts down. Finally, recharge it to 100% without interruptions. This process helps the operating system recognize the real capacity of the new battery and display the charge percentage accurately.
What warranty does it have and what do I do if it doesn't work or doesn't fit properly?
The battery has a 3-year warranty for private customers (1 year for professionals). If upon receipt it does not fit or does not work, you have 14 days to return it. You can manage the return yourself or request a home collection for 8,90 € in Spain and Portugal, which will be deducted from the refund. It is important to keep the original packaging.
How long will my order take to arrive?
All our shipments are made from Spain. For orders in Spain and Portugal, the delivery time is 24 to 48 working hours. For France, the period is 48 to 72 hours, and for the rest of the European Union, 2 to 5 working days. Orders placed before 16:00 (15:00 on Fridays) are prepared on the same day.
Warranty, returns and shipping
- Warranty: 3-year warranty (1 year for business customers)
- Returns: 14-day returns (ship it yourself or €8.90 home pickup in Spain and Portugal)
- Shipping: EU delivery 48-120 h
- Condition: New
BAT-LE149
Data sheet
- CG. Reference
- 42T4821
- CG. Type of piece
- Battery
- CG. State
- New
- CG. Warranty
- 3 years
- CB. Voltage
- 11.1 V
- CB. Number of cells
- 6
- CB. Cell technology
- Li-Ion
- CB. Color
- Black
- CB. Capacity
- 3900 mAh
- CB. Overload protection
- Yeah.
Yes
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42T4821 replacement battery for Lenovo ThinkPad laptops. Offers 11.1V, 3900mAh, and 44Wh capacity. Compatible with T400s and T410s series and multiple part numbers. New, with 3 years warranty.
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