Asus B21N1818-3 Original Laptop Battery For Asus A409UJ D409DA F509UA K509FA P1503DA

Product Description

Lap Gadgets batteries keep you connected always to carry out your important work on your laptop. No matter wherever you are.

Our replacement batteries are best in market in terms of quality, reliability and price. You are being asssured for every paise you spent on our batteries.

• Fresh batteries – 0-Cycle – all our batteries are unused, fresh directly from factory.
• Premium Cells – We use quailty cells with atmost capacity.
• Rigorous Testing – All our batteries are tested to ensure it gives optimal performance to you.

Note
New battery packs must be charge fully before use. It should be fully charged and discharged for couple of cycles to get optimum performance.

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Product highlights

• Type – Lithium-ion battery
• Cells –  2 cells
• Capacity – 4212 mAh

Warranty

• 6 months & 12 months carry in replacement warranty

Return & Replacement

• We are confident in our product hence we give you 10 days free returns & 30 days self return window to either get replacement or return (know more)

High Quality Asus B21N1818 battery

High quality component

This Asus B21N1818 battery replacement has built-in A+ grade cells and high-quality TI intelligent control chip, which not only performs better, charges faster but lasts longer. In addition, the outer shell of the Asus B21N1818 battery is made according to the original battery shape design scheme, using high temperature and wear-resistant ABS +PC alloy environmentally friendly materials, which can be 100% compatible with your laptop and fit closely.

100% True Capacity

Do not be deceived by the false capacity advertisements from bad merchants, of which battery capacity will often drop off significantly after using a few months. Made with the highest quality “A” grade cells, our Asus B21N1818 laptop battery has passed various strict quality tests to ensure that it meets OEM specifications, which can provide more than 600 charging cycles to maintain the same capacity for a long time.

Safety first!

Using a poor battery with unstable performance may do harm to the notebook and your safety. Our Asus B21N1818 replacement battery has passed CE, UL, ROHS, and other international authority certifications, which provides a variety of protection functions, effectively preventing common risks such as short circuits, overheating, and overvoltage. In order to protect your laptop and your safety, please rest assured to purchase our high-quality batteries!

Why buy from Lap Gadgets ?

Fast Shipping

The shipment will be arranged within 24 hours (working day) after we receiving the order. The shipping notification will be sent via email after confirming the shipment, which will contain the details of your order and tracking information of the package.

Secure Packaging

To ensure that the new Asus B21N1818 battery can be safely delivered to your hands, it will be firstly packed in an anti-static bag, then wrapped with a drop-proof synthetic foam, finally enclosed into sturdy cardboard and sealed with waterproof plastic tape

30 Days Money Back

In order to minimize the risk during the purchase process from customers, our return period is 30 days instead of 7 or 14 days! You can easily request a refund within 30 days since receiving the product if you are not satisfied with our Asus B21N1818 laptop battery or our service.

10 days Free Repair/Replacement

Now get hassle free return / replacement within 10 days of delivery to you. In case of issue in the item purchased inform us within 10 days of delivery, we will arrnage free pickup for returns or replacement.

Safety first

Over Voltage Protection
Over Charge Protection
Over Discharge Protection
Electromagnetic Protection
Over Heating Protection
Short Circuit Protection
Intelligent Protection
Charging Time Protection

Compatible Part Numbers

• 0B200-03450000
• B21N1818-1
• B21N1818-2
• B21N1818-3
• C21N1818-2
• C21N1818-1
• C21N1818-3

Fits Laptop Models

• A409FA
• A409FB
• A409FJ
• A409FL
• A509FA
• A509FA-EJ145T
• A509FA-EJ146T
• A509FA-EJ178T
• A509FA-EJ211T
• A509FA-EJ253T
• A509FB
• A509FJ
• A509FL
• F409FA
• F409FB
• F409FL
• F509FA
• F509FA-EJ207T
• F509FB
• F509FB-EJ117T
• F509FB-EJ118T
• F509FJ
• F509FL
• FL8700FB
• FL8700FJ
• FL8700FL
• Laptop 15 X509JA
• Laptop 15 X509JA-BQ040T
• Laptop 15 X509UA
• Laptop 15 X509UB
• Laptop 15 X509UJ
• M509DA
• M509DA-EJ153T
• R427FA
• R427FB
• R427FJ
• R427FL
• R521FA
• R521FA-EJ111T
• R521FA-EJ112T
• R521FB
• R521FJ
• R521FL
• VivoBook 14 X409FA-BV012AT
• VivoBook 14 X409FA-EK034T
• VivoBook 14 X409FA-EK041T
• VivoBook 14 X409FA-EK070T
• VivoBook 14 X409FA-EK098T
• VivoBook 14 X409FA-EK099T
• VivoBook 14 X409FA-EK149T
• VivoBook 14 X409FA-EK199T
• VivoBook 14 X409FA-EK502T
• VivoBook 14 X409FA-EK555T
• VivoBook 14 X409UA
• VivoBook 14 X409UA-BV050T
• VivoBook 14 X409UA-BV074T
• VivoBook 14 X409UA-BV105T
• VivoBook 14 X409UA-BV111T
• VivoBook 14 X409UA-EB053T
• VivoBook 14 X409UA-EK035T
• VivoBook 14 X409UA-EK036T
• VivoBook 14 X409UA-EK054T
• VivoBook 14 X409UA-EK080T
• VivoBook 14 X409UA-EK092T
• VivoBook 14 X409UA-EK093T
• VivoBook 14 X409UA-EK341T
• VivoBook 14 X409UA-EK342T
• VivoBook 14 X409UA-EK361TS
• VivoBook 14 X409UA-EK362TS
• VivoBook 14 X409UA-HT071T
• VivoBook 15 F509FA
• VivoBook 15 F509FA-EJ014T
• VivoBook 15 F509FA-EJ207
• VivoBook 15 F509FA-EJ255T
• VivoBook 15 F509FA-EJ337
• VivoBook 15 F509FA-EJ337T
• VivoBook 15 F509FA-EJ501T
• VivoBook 15 F509FA-EJ551
• VivoBook 15 F509FA-EJ672T
• VivoBook 15 M509DA
• VivoBook 15 M509DA-BQ206
• VivoBook 15 M509DA-BQ321T
• VivoBook 15 M509DA-BR123T
• VivoBook 15 M509DA-BR132T
• VivoBook 15 M509DA-BR139T
• VivoBook 15 M509DA-BR151
• VivoBook 15 M509DA-BR155T
• VivoBook 15 M509DA-BR218
• VivoBook 15 M509DA-BR241
• VivoBook 15 M509DA-BR260
• VivoBook 15 M509DA-BR290T
• VivoBook 15 M509DA-EJ024T
• VivoBook 15 M509DA-EJ025T
• VivoBook 15 M509DA-EJ034T
• VivoBook 15 M509DA-EJ043
• VivoBook 15 M509DA-EJ051T
• VivoBook 15 M509DA-EJ058T
• VivoBook 15 M509DA-EJ068
• VivoBook 15 M509DA-EJ068T
• VivoBook 15 M509DA-EJ072T
• VivoBook 15 M509DA-EJ073T
• VivoBook 15 M509DA-EJ084T
• VivoBook 15 M509DA-EJ085T
• VivoBook 15 M509DA-EJ098T
• VivoBook 15 M509DA-EJ102T
• VivoBook 15 M509DA-EJ126T
• VivoBook 15 M509DA-EJ153T
• VivoBook 15 M509DA-EJ156T
• VivoBook 15 M509DA-EJ176T
• VivoBook 15 M509DA-EJ194T
• VivoBook 15 M509DA-EJ292T
• VivoBook 15 M509DA-EJ333T
• VivoBook 15 M509DA-EJ443T
• VivoBook 15 M509DA-EJ541T
• VivoBook 15 M509DA-EJ561T
• VivoBook 15 M509DA-EJ562T
• VivoBook 15 M509DA-EJ581T
• VivoBook 15 M509DA-EJ582T
• VivoBook 15 M509DA-EJ641T
• VivoBook 15 M509DA-EJ94T
• VivoBook 15 M509DA-EJ95T
• VivoBook 15 M509DA-WB302
• VivoBook 15 M509DA-WB331
• VivoBook 15 M509DA-WB332
• VivoBook 15 M509DA-WB502
• VivoBook 15 M509DA-WB712
• VivoBook 15 M509DA-WB712T
• VivoBook 15 X509UA
• VivoBook 15 X509UA-EJ001T
• VivoBook 15 X509UA-EJ021T
• VivoBook 15 X509UA-EJ050T
• VivoBook 15 X509UA-EJ062T
• VivoBook 15 X509UA-EJ064T
• VivoBook 15 X509UA-EJ071T
• VivoBook 15 X509UA-EJ073T
• VivoBook 15 X509UB
• VivoBook 15 X509UB-BR061T
• VivoBook 15 X509UB-EJ009T
• VivoBook 15 X509UB-EJ010T
• VivoBook 15 X509UB-EJ021T
• VivoBook 15 X509UJ
• VivoBook 15 X509UJ-BR044T
• VivoBook 15 X509UJ-EJ036T
• VivoBook 15 X509UJ-EJ048T
• VivoBook 15 X545FA
• VivoBook 15 X545FA-EJ085T
• VivoBook 15 X545FA-EJ116T
• VivoBook 15 X545FJ
• VivoBook 15 X545FJ-BQ034T
• VivoBook 15 X545FJ-EJ009T
• VivoBook 15 X545FJ-EJ064T
• VivoBook 15 X545FJ-EJ065T
• VivoBook F509FA-EJ255T
• X409FA
• X409FB
• X409FL
• X509FA
• X509FA-BR030T
• X509FA-BR032T
• X509FA-DB51
• X509FA-DB71
• X509FA-EJ099T
• X509FA-EJ101T
• X509FA-EJ103T
• X509FB
• X509FB-EJ024
• X509FJ
• X509FJ-0111G8265U
• X509FJ-0131S8265U
• X509FJ-AP8205T
• X509FJ-BR012T
• X509FJ-BR013T
• X509FJ-EJ014
• X509FJ-EJ049T
• X509FJ-EJ051T
• X509FJ-EJ053T
• X509FJ-EJ055T
• X509FJ-EJ115T
• X509FJ-EJ121T
• X509FJ-EJ139T
• X509FJ-EJ145T
• X509FJ-EJ155T
• X509FJ-EJ501T
• X509FJ-EJ701T
• X509FL
• X509JA
• X509JA-BQ039T
• X509JA-BQ084T
• X509JA-BR072T
• X509JA-BR104T
• X509JA-BR131T
• X509JA-EJ024T
• X509JA-EJ025T
• X509JA-EJ026T
• X509JA-EJ027T
• X509JA-EJ028T
• X509JA-EJ031T
• X509JA-EJ105T
• X509JA-EJ107T
• X509JA-EJ114T
• X509JA-EJ129T-BE
• X509JA-EJ140T
• X509JA-EJ141T
• X509JA-EJ147R
• X509JA-WB501T
• X509UA
• X509UA-BR011T
• X509UA-BR035T
• X509UA-BR036T
• X509UA-BR112T
• X509UA-BR113T
• X509UA-BR236T
• X509UA-EJ009T
• X509UA-EJ050T
• X509UA-EJ061T
• X509UA-EJ062T
• X509UA-EJ064T
• X509UA-EJ071T
• X509UA-EJ073T
• X509UA-EJ103T
• X509UB
• X509UB-EJ009T
• X509UB-EJ010T
• X509UB-EJ021T
• X509UJ
• X509UJ-BQ022T
• Y4200FA
• Y4200FB
• Y4200FJ
• Y4200FL
• Y5200
• Y5200FA
• Y5200FB
• Y5200FJ
• Y5200FL

Some tips to increase the life of Asus B21N1818 battery

1. Please carefully read the instructions before using the battery.
2. Before using the new replacement Asus B21N1818 for the first time, make sure that the battery is full charge for the first time usage and then get it discharge up to 5% and then recharge it for the same pattern for couple of times.
3. You’d better use a dedicated AC adapter when charging the new Asus B21N1818 battery
4. You’d better turn off your Asus laptop when the Asus B21N1818 battery is charging; do not pull out the power plug or use your computer when charging for the first time.
5. If you don’t use laptop for a long time, please remove the Asus B21N1818 battery, and place it in a ventilated and dry place.
6. Excessively high or low temperature environment should be avoided when using the replacement Asus B21N1818 battery, as the too low or too high temperature will affect the battery life.