Description

Asus Vivobook A409FJ A509FJ F509UB X409UA X509MA B21N1818-1/2/3/4 Original Replacement Battery

**Please check battery first before placing order, please check your old ‘s model name and the battery leg/fitting first, ensure the battery Model Name is B21N1818-1/2/3/4 or C21N1818-1/2/3/4

Customer Service Hotline

603-2110 3721

New Genuine Product – Not Refurbished / Recycled

Local Supplier Warranty

100% Functional

Capacity: 7.6V 4212mAh (32Wh)

In WARRANTY Period 1 to 1 exchange

“CTRL”+”F” to find your laptop model/part number

Replace Part Numbers:

B21N1818-1/2/3/4

0B200-03450000 2/CP7/60/80

0B200-03450100

0B200-03450200

0B200-03450300

Fit Laptop Models:

A409FJ

A409UJ

A509FB

A509FJ

D509DA

F409FA

F509FB

F509UA

F509UB

K509FA

M409DA

M509

R409BA

R409DA

R409FA

R409UA

R509

R521

R909

S409UA

S509FA

S509UA

X409BA X409DA X409DJ X409DL X409FA X409FB X409FJ X409MA X409UA X409UJ

X509BA X509DA X509DJ X509DL X509FA X509FB X509FJ X509FL X509UA X509UB X509UJ

X545FB X545FJ X545FA

Power saving tips

Decrease the screen brightness

Try to shut down background Apps – Especially the apps consuming more power

Avoid fancy bright colorful Themes. Use a dark theme is possible

Turn on energy saving mode / low power mode.

Control the use of Bluetooth and Wi-Fi. Turn on while it needed.

Please recycle your old/damaged/unused with care.

Note: Not all compatible models listed.

*This Battery can fit for many models. If you are having trouble finding the one for your laptop, feel free to contact with our customer service for more info.

Full product reference: Battery for Asus VivoBook A409FJ A509FJ F509UB X409UA X509MA B21N1818 – Original