【Specifications】 Model: C21N1818-1 . Voltage: 7.7V . Capacity:37Wh/4730mAh. Condition: 100% brand New from Manufacturer. 【for ASUS VivoBook 15 Series】for ASUS VivoBook 15 F512DA F512FA F512JA F512JP F512FB F512FJ F512FL F512UA series.ASUS Vivobook 15 R564DA R564JA R564FA series.ASUS Vivobook 15 X512DA X512DA-BR7N4 X512DK X512FB X512FJ X512FA X512FL X512JA X512JF X512JP X512UB X512UA X512UFseries. for ASUS VivoBook S512DK S512FA S512FB S512FL S512UA series. 【Compatible P/N】C21N1818-1 0B200-03280800 2ICP7/54/83. 【Quality & Security】 Quality: grade A cells ensure fast charges and low power consumption. Safety: All of our products are Certified by UL / CE / FCC / RoHS for safety. Strict guidelines for compatibility, strict quality control standards to ensure the true capacity, stable current and low self-discharge and standards compliance for environment safety. 【After-sale service】After-sale service：We guarantee 30 days return/exchange policy and 12-month warranty; 24 x 7 email support. Welcome to Vmaxxfanee : Dear Customer, Thank you for your attention and support. We strongly recommend you to check and confirm your laptop model, original battery model and appearance before placing your order, compare it with our battery images to make sure it is the one you need, thank you!

Note:
If the new battery is not recognized during the initial installation, please reinstall and check if the interface is fully connected.

Specifications:
①.Battery Type: Li-ion
②.Model: C21N1818-1
③.Voltage: 7.7V
④.Capatity: 37Wh/4730mAh
⑤.Battery Condition: Brand New

⑥.Compatible Models (use "Ctrl+F to find your model quickly")
for ASUS VivoBook 15 F512DA F512FA F512JA F512JP F512FB F512FJ F512FL F512UA series.ASUS Vivobook 15 R564DA R564JA R564FA series.ASUS Vivobook 15 X512DA X512DA-BR7N4 X512DK X512FB X512FJ X512FA X512FL X512JA X512JF X512JP X512UB X512UA X512UFseries. for ASUS VivoBook S512DK S512FA S512FB S512FL S512UA series.
⑦.Compatible Part Numbers：
C21N1818-1 0B200-03280800 2ICP7/54/83.

⑧.Package included:
1X C21N1818-1 battery
One set of 5 IN 1 screwdrivers tool
1 Instruction manual

⑨.Tips for Optimal Use battery:
<1>Discharge the new battery to 5%-10% (not 0%), then charge and cycle 3-4 times to wake up the new battery.
<2>The important point is to perform a full discharge charge every other month to extend battery life.
<3>Don't connect adapter for a long time while using the battery. It may damage the battery.
<4>Avoid artificial shocks, disassembly, crush or puncture. Don't dispose of the battery in fire or water.Avoid using the battery in an environment where the temperature is too high or too low.