42T4688 Battery for Lenovo Laptop - 11.1V 3900mAh 6-Cell Li-Ion
€47.99
Tax included
The 42T4688 battery is a 11.1V and 3900mAh replacement for Lenovo ThinkPad T400s and T410s laptops. Compatible with over 10 part numbers, including 42T4691 and 42T4833. It is a new product, with a 3-year warranty and shipping from Spain in 24-48 hours.
42T4688
42T4688 Battery for Lenovo Laptop - 11.1V 3900mAh 6-Cell Li-Ion
Replacement battery for Lenovo ThinkPad T400s and T410s. New, with 3 years warranty.
- 3900 mAh / 44 Wh
- 11.1 V
- 6 Li-Ion Cells
- New
Key features
-
Nominal Capacity
3900 mAh / 44 Wh for extended and reliable autonomy.
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Stable Voltage
11.1 V, ensuring a constant and safe power supply for your device.
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Cell Technology
Composed of 6 high-performance Li-Ion (Lithium-Ion) cells.
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Specific Compatibility
Designed for a perfect fit in Lenovo ThinkPad T400s, T410s, and T410si models.
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Maximum Safety
Integrated protection circuits against overcharges, overvoltages, and short circuits.
Product description
The replacement battery with reference 42T4688 is the ideal solution to restore the autonomy of Lenovo ThinkPad laptops. With a capacity of 3900 mAh (44 Wh) and a voltage of 11.1 V, this battery is manufactured with 6 Lithium-Ion (Li-Ion) cells to guarantee stable performance and a long lifespan. Each unit has been verified to ensure its full compatibility and functionality.
This component incorporates protection circuits against overcharges, overvoltages, and short circuits, protecting both the battery and the computer. It is a new battery, designed to fit perfectly into compatible models and comply with the original manufacturer's specifications.
To ensure a correct purchase, it is essential that the customer verifies the part number of their original battery or the exact model of their laptop with the compatibility lists provided below. Proper maintenance, such as avoiding complete discharges regularly, will help maximize its durability.
To prolong the battery's lifespan, it is recommended to perform charging cycles that do not completely deplete the energy and to avoid exposing the device to extreme temperatures. Initial calibration, by charging the battery to 100% and letting it discharge to 15-20% during the first uses, helps optimize the accuracy of the charge indicator.
Who is this product for?
For technical services and individual users who need to replace the depleted battery of a Lenovo ThinkPad T400s or T410s laptop to restore its autonomy.
Ideal for
- Battery replacement in a Lenovo ThinkPad T400s that no longer holds a charge.
- Restoration of original autonomy in a Lenovo ThinkPad T410s laptop.
- Repair of a Lenovo ThinkPad T410si with a defective or swollen battery.
- Preventive maintenance on company equipment to ensure mobility.
Technical specifications
| Voltage | 11.1 V |
|---|---|
| Capacity | 3900 mAh |
| Energy | 44 Wh |
| Number of Cells | 6 |
|---|---|
| Cell Technology | Li-Ion (Lithium-Ion) |
| Color | Black |
| Main Reference | 42T4688 |
|---|---|
| Compatible Brands | Lenovo |
Compatibility
Compatible part numbers
- 42T4688
- 42T4689
- 42T4690
- 42T4691
- 42T4820
- 42T4821
- 42T4832
- 42T4833
- 51J0497
- 51JO497
- 42T4522
- 42T4519
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 tell if this battery is compatible with my Lenovo laptop?
The safest way is to compare the part number of your original battery with the 'Compatible Part Numbers' list on this product page. Look for a label on your battery with codes like 42T4688 or 42T4691. If it matches, it is the correct one. You can also check if your laptop model, such as ThinkPad T400s, is on the 'Compatible Device Models' list.
Is it necessary to calibrate the new battery upon installation?
Yes, it is recommended. To calibrate it, install the battery and charge it to 100% without interruptions. Then, use the laptop until the battery discharges to 15-20% before recharging it. Repeating this process 2 or 3 times helps the system recognize the battery's real capacity and accurately display the charge percentage.
What warranty does the battery have and how do returns work if it's not compatible?
The battery has a 3-year warranty for private customers and 1 year for professionals. If upon receipt you find that it is not compatible, you have 14 days to return it. You can manage the return shipment on your own or request a home collection for 8,90 € in Spain and Portugal, which will be deducted from the refund.
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 Germany, 48 to 96 hours. For the rest of the European Union, delivery takes 2 to 5 working days.
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
- 42T4688
- 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
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42T4688 replacement battery for Lenovo ThinkPad laptops. Offers 11.1V, 3900mAh capacity and 44Wh energy with 6 Li-Ion cells. Compatible with T400s and T410s series. New product with 3 years warranty.
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