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Asus NB431021 Original Battery B21N1505, 4200mAh

Price: 63.90 €
Products ID:62541
Manufactured by: Extra Digital
Availablity: Ready to Order
Delivery Time5-10 business days
EAN: 9990000431021


The original Asus NB431021 battery restores your laptop's mobility, offering high-quality power performance for your daily tasks.

Reliable Power Performance

These Li-Pol batteries are manufactured using premium, balanced rechargeable cells that ensure maximum capacity and a long service life. With no "memory effect," the battery can be recharged at any time without losing efficiency.

Key Features

  • High Capacity: 4200 mAh provides ample power for extended mobile use.
  • Li-Pol Technology: Advanced lithium-polymer cells for safety and durability.
  • Perfect Compatibility: Designed specifically to replace the B21N1505 battery model.
  • Original Quality: Ensures stable voltage and protection for your laptop's internal components.

Technical Specifications

BrandAsus
Model CodeNB431021 / B21N1505
Capacity4200 mAh
Voltage7.6 V
Cell TypeLi-Pol

Frequently Asked Questions

Which laptop models are compatible with this battery?

It is suitable for Asus E402, E402S, E502S, E402M, E402MA, and E402SA models.

Can I charge this battery at any time?

Yes, since it is a Li-Pol battery with no memory effect, you can recharge it whenever it is convenient.

What is the warranty period?

This original Asus battery comes with a 12-month warranty.


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We want you to be happy with your purchase. If something isn't right, here's how returns work.

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Most unused items can be returned within 30 days of delivery for a full refund or exchange. Items must be in original condition with original packaging.

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Once we receive and inspect your return, a refund is issued within 7–10 business days to the original payment method.

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  • Item must be unused and in original condition
  • Include your receipt or proof of purchase
  • Perishable or custom-made items are non-returnable
  • Return shipping is covered only for faulty or incorrect items

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15+ yearsLocal Latvian online store
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Free deliveryFrom €35 to Latvijas Pasts lockers
Easy returnsWarranty and simple returns

63.90 €