B21N1818-2 Battery for Asus VivoBook Laptop - 7.6V 4050mAh 32Wh
€35.99
Tax included
The B21N1818-2 battery is a replacement for Asus VivoBook laptops with a capacity of 4050 mAh and 7.6 V. It is compatible with over 15 models from the A512, F512, X412, and X415 series. New product, with a 3-year warranty and shipping from Spain in 24-48 h.
Asus · B21N1818-2
B21N1818-2 Battery for Asus VivoBook Laptop - 7.6V 4050mAh 32Wh
New replacement with 32Wh capacity. 3-year warranty and 24-48h shipping.
- 7.6 V / 4050 mAh
- 32 Wh
- New
Key features
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Nominal Voltage
7.6 V, ensures stable power for your device.
-
Capacity
4050 mAh (32 Wh) to restore your laptop's autonomy.
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Wide Compatibility
Designed for multiple Asus VivoBook series, including A512, F512, X412, and X415.
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Warranty and Shipping
3-year warranty and fast shipping in 24-48h from Spain.
Product description
The Asus laptop battery with reference B21N1818-2 is the ideal solution to replace an exhausted or defective component. It operates at a voltage of 7.6 V and offers a capacity of 4050 mAh (32 Wh), ensuring stable power and restoring your device's original autonomy.
This replacement is compatible with a wide range of Asus VivoBook models, including the A512, F512, K512, R409, S409, X412, and X415 series. It has been manufactured following high quality standards to guarantee optimal performance.
Before purchasing, it is essential to verify that the part number of your original battery matches B21N1818-2 or one of the equivalent part numbers. This battery is a new product, checked by our technical service, and is delivered ready for installation.
To ensure a correct purchase, we recommend disassembling your laptop's battery and comparing the part number (P/N) printed on the label with B21N1818-2. If you have doubts about compatibility with your exact model, our technical support team can help you confirm it before placing your order.
Who is this product for?
For technical services and individual users who need to replace their Asus VivoBook laptop battery to restore its autonomy and portability.
Ideal for
- Replacement of an exhausted battery in an Asus VivoBook A512UF.
- Restoration of autonomy for an Asus X415DA laptop.
- Repair of a device that does not retain charge or turns off when unplugged.
- Replacement of a swollen battery or one that does not charge correctly.
Technical specifications
| Voltage | 7.6 V |
|---|---|
| Capacity | 4050 mAh |
| Energy | 32 Wh |
| Reference | B21N1818-2 |
|---|---|
| Condition | New |
| Warranty | 3 years |
| Brand | Asus |
|---|
Compatibility
Compatible part numbers
- B21N1818-2
- 0B200-03280500
Compatible laptop models
- A512UF
- F512DA
- K512FA
- R409FA
- S409JA
- X412DA
- X412DK
- X412FA
- X412FJ
- X412FL
- X412UA
- X412UB
- X412UF
- X415DA
- X415EA
- X415EP
- X415FA
- X415JA
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 this battery is correct for my Asus laptop?
The most reliable way is to disassemble the original battery and check that the part number (P/N) printed on the label is B21N1818-2 or 0B200-03280500. You can also verify if your laptop model, such as the VivoBook A512UF or X415DA, is on our compatibility list. If you have doubts, contact us.
Is it necessary to calibrate the battery after installation?
Yes, it is highly recommended. After installing it, charge it to 100%. Then, use the laptop until it is completely discharged and turns off. Finally, charge it back to 100% without interruptions. This cycle helps the operating system recognize the actual capacity of the new battery and optimize its lifespan.
What warranty does it have and what do I do if it doesn't work or isn't correct?
The battery has a 3-year warranty for private customers and 1 year for professionals. If it is not compatible or has any defect, you have 14 days to return it. You can send it on your own or request a home collection for 8,90 € in Spain and Portugal, an amount that will be deducted from the refund.
How long does the order take to arrive?
All our shipments are made from Spain. For orders in Spain and Portugal, the delivery time is 24-48 business hours. For other EU destinations, such as France or Germany, the period may vary between 48 and 120 business hours, depending on the destination country.
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-AS911
Data sheet
- CG. Reference
- B21N1818-2
- CG. Type of piece
- Battery
- CG. State
- New
- CG. Warranty
- 3 years
- CB. Voltage
- 7.6 V
- CB. Cell technology
- Lithium
- CB. Capacity
- 4050 mAh
- DJ. Compatible brand
- Asus
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B21N1818-2 replacement battery for Asus VivoBook laptops. Specifications: 7.6 V, 4050 mAh (32 Wh). Compatible with A512, F512, K512, R409, S409, X412, and X415 series. New, verified component with a 3-year warranty.
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