Go Back

C21N1509 battery for Asus X556 and X556U series laptop 7.6V 4100mAh

★ ★ ★ ★ ★ ★

4.8 / 5 (4 reviews )

C21N1509 Battery for Asus Laptop - 7.6V 4100mAh 4-Cell Li-Ion

€30.99

Tax included

Reference: BAT-AS111

Brand: OEM

⚠️ LAST UNITS - FEW LEFT

Shipping tomorrow - Delivery in 24-48h (Spain and Portugal mainland)

Only 2 to 4 units left

⚡ Buy it NOW before it's gone!

EU shipping 48-96h 14-day returns 3-year warranty

Quantity:

Warranty
3 years

14 days to return

Secure
payment

IT professional? Get your special trade price here

The C21N1509 battery is a replacement part for Asus laptops of the X556 and X556U series, with 4100 mAh and 7.6V. It is compatible with over 10 specific models such as the X556UA and X556UQ. New, verified product, with 3 years warranty and shipping from Spain in 24-48 h.

C21N1509

C21N1509 Battery for Asus Laptop - 7.6V 4100mAh 4-Cell Li-Ion

Replacement battery for Asus X556 and X556U series, new and with 3 years warranty.

4100 mAh / 7.6V
4 Li-Ion Cells
New

Key features

⚡ Reliable Capacity
4100 mAh for extended battery life in your Asus laptop.
💡 Specific Voltage
7.6V for stable and safe performance, identical to the original.
🔧 Precise Compatibility
Specifically designed for Asus X556 and X556U series.
🛡️ Quality and Safety
Li-Ion cells with protection against overvoltage and undervoltage.

Product description

The C21N1509 laptop battery is a high-quality replacement solution, specifically designed to restore autonomy to your Asus device. With a capacity of 4100 mAh and a voltage of 7.6V, this 4-cell battery with Li-Ion technology ensures reliable and long-lasting performance, identical to that of the original part.

Each unit is manufactured under strict quality standards and incorporates protection circuits against overcharging, over-discharging, and voltage spikes, ensuring maximum safety for your laptop. Our technical service individually verifies each battery to ensure its perfect operation before shipping.

It is the ideal option for repair services and users who need a reliable replacement for Asus laptops of the X556, X556U series and their variants. To ensure full compatibility, it is essential to verify that the part number of your original battery or your equipment model matches those listed on this page.

Battery care tips:

To maximize the lifespan of your new battery, it is recommended to perform full charge cycles (charge to 100% and discharge to 15-20%) during the first uses. Avoid exposure to extreme temperatures and do not leave the battery completely discharged for prolonged periods to maintain cell health.

Who is this product for?

For technical services and individual users who need to replace the depleted battery of an Asus X556 series laptop, restoring its autonomy and mobility.

Ideal for

Replacement of depleted battery in an Asus X556UA
Restoration of autonomy in an Asus X556UQ laptop
Repair of an Asus device that does not turn on without being connected to power
Replacement of an original C21N1509 battery that has lost capacity

Technical specifications

Electrical Specifications
Capacidad	4100 mAh
Voltaje	7.6 V
Number of Cells	4
Tecnología	Li-Ion

Conditions and Warranty
Condition	New
Warranty	3 years (1 year for professionals)
Protecciones	Overcharge, over-discharge, and voltage spikes

Compatibility

Compatible part numbers

C21N1509

Compatible laptop models

X556
X556U
X556UA
X556UA BB31
X556UA XX050T
X556UB
X556UF
X556UJ
X556UQ
X556UQ DB51
X556UR
X556UR SH51
X556UV

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 C21N1509 battery is the correct one for my Asus laptop?

To confirm compatibility, the most reliable way is to check the part number of your original battery. Disassemble the current battery and look for a label with the code 'C21N1509'. If it matches, this is the correct part. You can also verify if your laptop model, such as 'X556UA' or 'X556UQ', appears in our list of compatible models. If you have doubts, contact our technical support.

Do I need to calibrate the new battery the first time I use it?

Yes, it is highly recommended. To calibrate it, charge the battery to 100% without interruptions. Then, use the laptop normally until the battery discharges to 15-20%. Recharge it to 100%. Repeating this process 2 or 3 times helps the system recognize the battery's real capacity and optimize its lifespan.

What warranty does it have and what do I do if it doesn't work or doesn't fit my laptop?

The battery has a 3-year warranty for private customers and 1 year for professionals. If upon receipt it is not compatible or has any defect, you have 14 days to return it. You can arrange the return shipping on your own or request a home pickup 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 our warehouse in Spain. For orders in Spain and Portugal, the delivery time is 24 to 48 business hours. For other European Union destinations, such as France or Germany, the period is usually 2 to 5 business days. Orders are prepared the same day if placed before 16:00.

How many hours of battery life can I expect from this battery?

Actual battery life depends on your laptop usage (browsing, video, gaming), screen brightness, and power settings. With 4100 mAh, this battery is designed to offer a duration similar to that of the original battery when it was new. You can expect several hours of office work or web browsing on a full charge.

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

Brand OEM

Reference BAT-AS111

In stock 2 Items

Data sheet