B21N1818-2 Replacement Battery for Asus VivoBook 14 X412DA / F412DA / A412FA / S412FA / R424DA in Bangladesh
Is the battery on your Asus VivoBook 14 X412DA / F412DA / A412FA / S412FA / R424DA draining fast, refusing to charge, or shutting down without warning? This brand-new B21N1818-2 replacement battery restores dependable, all-day backup – available in Bangladesh from LaptopVai at a clear price.
Fits these models
- Asus VivoBook 14 X412DA / F412DA / A412FA / S412FA / R424DA
- VivoBook 15 X509 / X545
- X409 series
Key features
- Brand-new Li-ion cells engineered for stable, long-lasting backup
- Matched to the original 7.6V / 32Wh / 4212mAh specification for a true factory fit
- Built-in overcharge, over-discharge, overheat & short-circuit protection
- 12-month warranty, tested before dispatch
Specifications
| Part number | B21N1818-2 |
|---|---|
| Battery type | Li-ion |
| Voltage | 7.6V |
| Capacity | 32Wh / 4212mAh |
| Cell configuration | 2 Cell |
| Condition | Brand New |
| Warranty | 12 Months |
Compatible part numbers: B21N1818-2, C21N1818-2
Installation & replacement
Browse all laptop batteries or more Asus laptop parts at LaptopVai. Prefer professional fitting? Use our laptop battery replacement service in Dhaka – bring your laptop to our Elephant Road shop and we will install and test it for you.
Price & availability
Current price: 2,500.00৳ – in stock. Cash on delivery nationwide, or collect from our Elephant Road (New Market) shop in Dhaka.
Frequently asked questions
Will this B21N1818-2 battery fit my laptop?
Yes – it is made for the models listed above. Please confirm your laptop model and the part number on your existing battery before ordering.
Is this an original or a new battery?
It is a brand-new Li-ion replacement built to the original 7.6V specification – not a used or refurbished cell.
What warranty and support do I get?
Every unit comes with a 12-month warranty and is tested before dispatch.
2-source-verified spec; ‘-2’ shape variant of the B21N1818 family — NOT interchangeable with plain B21N1818 / -1 / -3. Confirm shape before ordering.
Asus B21N1818-2 ল্যাপটপ ব্যাটারি (7.6V 32Wh / 4212mAh) বাংলাদেশে — LaptopVai-তে আসল-স্পেক রিপ্লেসমেন্ট, ১২ মাস ওয়ারেন্টি, ঢাকায় ডেলিভারি ও ক্যাশ অন ডেলিভারিসহ।
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