MULS B21N1818-1 C21N1818-1 Laptop Battery for Asus Vivobook 15 F512 F512D

About MULS
1. We have professional battery and adapter experience!
Strictly test before shipment to ensure full capacity and safety without harming the computer!
2. We recommend that the first charge is not less than 5 hours.
3. The new battery cannot be charged, is there a problem with the battery?
Usually not. The computer charges the battery for the first time. Due to the instability of voltage and current, the computer may stop charging the battery when the battery is half charged (sometimes more, sometimes less). If this happens, Don't worry, just take the battery out of the computer and recharge it again. The new battery charged for the first time may require several iterations. Don't worry, this is normal.
4. When the battery is in normal operation, if the battery is discharged to 3%, it must be shut down or recharged. If the battery is discharged to 0%, the battery will be damaged and its life will be attenuated.
5. Avoid falling, heating, and short-circuit, avoid using the battery in an environment where the temperature is too high or too low.
Specification:

Voltage: 7.7V
Capacity: 37Wh
Condition: Brand new from the manufacturer, Grade A cell
Replacement for Part Number
B21N1818-1 C21N1818-1 0B200-03280800 2ICP7/54/83
Compatible Laptop Models:

Fit for ASUS VivoBook 15 F512 F512D F512DA F512FA F512FB F512FJ F512FL F512JA F512JP F512UA Series:
F512UA-BQ251T, F512FA-BQ067T, F512FA-BQ148T, F512FA-BQ145T, F512FA-BQ150R, F512FA-EJ1422T, F512FA-EJ851T, F512UB-BQ039T, F512FB-EJ175T, F512FL-BQ547T, F512FL-EJ054T, F512FL-EJ054T, F512FL-EJ054T, F512FL-EJ054T, F512FL-EJ054T, F512FL-EJ054T, F512FL-EJ543T, F512FL-EJ761T, F512FL-EJ762T.
Fit for ASUS VivoBook A512DA A512F A512FA A512FB A512FL A512J A512JA A512JP A512U A512UA A512UF Series;
Fit for ASUS VivoBook K512FA K512J K512JA K512JP Series;
Fit for ASUS VivoBook R564 R564D R564DA R564F R564FA R564FJ R564J R564JA R564JP Series;
Fit for ASUS VivoBook S512 S512D S512DA S512DK S512F S512FA S512FB S512FL S512FJ S512U S512UA Series;
Fit forASUS Vivobook 15 X512 X512D X512DA X512DK X512F X512FA X512FB X512FJ X512FL X512J X512JA X512JF X512JP X512U X512UA X512UB X512UF K512 K512F Series.
Note: Please open the back cover of your laptop to check the original battery size and capacity before placing an order.
1. Turn off your laptop and disconnect the power.
2. Disconnect the connection between the old battery and the motherboard to avoid unnecessary damage caused by disassembling the battery. Then unscrew the old battery screws one by one and carefully save each screw.
3. Remove the old battery, carefully connect the new battery to the mainboard, reinstall all the parts that have been removed earlier, and connect the wiring of the new battery.
4. If you don't understand the above steps, you can search the relevant installation tutorial video on YouTube for help.
1. New battery: Discharge the new battery to 10% (not 0%), then charging up to 95% and repeat 3-4 times to activate the maximum capacity.
2. Overuse: Do not always run out of a battery to 0%, that would damage the battery or shorten the usage life.
3. Charging sequence: when charging, first install the battery, then turn on the power, when fully charged, first cut off the power, then pull the power plug.
4. Fully charge the battery before long-term storage, and keep charging once a month.
Do not store the battery at low power circumstances.

Could be caused by battery loose. Please re-install the battery and make sure that the battery cable and the motherboard interface are tightly inserted.
Maybe due to conductive material damaged which the laptop motherboard and battery anode and cathode contact position, you can try to confirm it with your original battery.
Check whether the battery drive is in normal condition, if not, download the corresponding driver software t