5B10K87721 Battery for Lenovo Laptop - 7.6V 3950mAh 4-Cell Li-Ion
€32.98
Tax included
The 5B10K87721 battery is a compatible replacement for Lenovo laptops, with a capacity of 3950 mAh and 7.6V. It is compatible with 10 equivalent part numbers and the Ideapad 310 and 510 series. New product, with a 3-year warranty and shipping from Spain in 24-48 hours.
5B10K87721
5B10K87721 Battery for Lenovo Laptop - 7.6V 3950mAh 4-Cell Li-Ion
Compatible replacement battery for Lenovo Ideapad 310 and 510. New, with 3-year warranty.
- 3950 mAh / 7.6 V
- 4 Li-Ion Cells
- Compatible with Ideapad 310/510
- New
Key features
-
Capacity and Autonomy
3950 mAh and 7.6V for reliable and long-lasting performance.
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Cell Technology
4 Li-Ion cells that ensure a long lifespan.
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Guaranteed Compatibility
Designed for Lenovo laptops of the Ideapad 310 and 510 series.
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Integrated Safety
Includes overcharge and over-discharge protections.
Product description
The replacement battery with reference 5B10K87721 is the ideal solution to restore the autonomy of your Lenovo laptop. It is a compatible battery, manufactured with 4 Li-Ion cells that ensure reliable and long-lasting performance, individually checked by our technical service.
With a capacity of 3950 mAh and a voltage of 7.6 V, it provides the necessary power for your workday. Each unit includes overcharge and over-discharge protections to ensure equipment safety. It is the perfect replacement for the Lenovo Ideapad 310 and Lenovo Ideapad 510 series, as well as for all equivalent part numbers listed in the compatibility section.
Installation is straightforward, replacing the old battery without the need for additional software or configurations. To maximize its lifespan, it is recommended to perform a full charge and discharge cycle during the first uses.
To optimize the performance and lifespan of your new battery, an initial calibration cycle is recommended. Charge the battery to 100%, then use it until the laptop warns of low battery or shuts down. Repeat this process 2-3 times. This helps the operating system recognize the battery's actual capacity and display accurate charge percentages.
Who is this product for?
For technical services and private users who need to replace the depleted battery of a Lenovo Ideapad 310 or 510 laptop, restoring its original autonomy.
Ideal for
- Replacement of original 5B10K87721 battery in a Lenovo laptop.
- Repair of a Lenovo Ideapad that no longer charges or has short battery life.
- Maintenance of laptops with batteries degraded by use.
- Replacement to restore the mobility of a work device.
Technical specifications
| Capacity | 3950 mAh |
|---|---|
| Voltage | 7.6 V |
| Number of Cells | 4 |
|---|---|
| Technology | Li-Ion |
| Color | Black |
| Overcharge Protection | Yes |
|---|---|
| Over-discharge Protection | Yes |
| Brand | Lenovo |
|---|---|
| Series | Ideapad 310, Ideapad 510 |
Compatibility
Compatible part numbers
- 5B10K87721
- 5B10K87722
- 5B10K88299
- 5B10K90786
- 5B10K90787
- 5B10K90804
- L15C2PB3
- L15C2PB5
- L15L2PB4
- L15M2PB3
- L15S2TB0
Compatible laptop models
- Lenovo Ideapad 310
- Lenovo Ideapad 510
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
Is it necessary to calibrate the new battery upon installation?
Yes, it is highly recommended. To calibrate it, charge the battery to 100% and then use it continuously until the laptop shuts down due to low battery. Repeat this full charge and discharge cycle 2 or 3 times. This process helps the operating system accurately measure the battery's actual capacity and display correct percentages.
What warranty does it have and what do I do if it doesn't work or fit?
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 correctly, 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.
How long does the order take to arrive?
All our products are shipped from our warehouse in Spain. For orders in Spain and Portugal, the delivery time is 24-48 business hours. For other EU destinations, such as France, delivery usually takes between 48 and 72 business hours. Orders are prepared the same day if placed before 16:00 (Fridays, 15:00).
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-LE118
Data sheet
- CG. Reference
- 5B10K87721
- CG. Type of piece
- Laptop battery
- CG. China
- GreenCell
- CG. State
- New
- CG. Warranty
- 3 years
- CB. Voltage
- 7.6 V
- CB. Number of cells
- 4
- CB. Cell technology
- Li-Ion
- CB. Color
- Black
- CB. Capacity
- 3950 mAh
- CB. Overload protection
- Yeah.
Yes
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5B10K87721 replacement battery for Lenovo laptops. Offers 3950 mAh and 7.6V with 4 Li-Ion cells. Compatible with Ideapad 310, 510 series and multiple part numbers. New, tested product with a 3-year warranty.
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