MULS PA5267U-1BRS Laptop Battery for Toshiba Portege X20W X20W-D X20W-E

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:11.4V
Capatity:44Wh 3760mAh 3-Cell
100% brand new from the manufacture, Grade A cell
Replacement for Part Number

PA5267U-1BRS
PA5267U
Compatible Laptop Models:
For Toshiba Portege X20W X20W-D Series

Portege X20W-D-10E Portege X20W-D-10Q Portege X20W-D-10R Portege X20W-D-10V
Portege X20W-D-11N Portege X20W-D-11T Portege X20W-D-14G
Portege X20W-D-111 Portege X20W-D-145 Portege X20W-D-BTO Portege X20W-D1252
For Toshiba Portege X20W X20W-E Series
Portege X20W-E-10D Portege X20W-E-10E Portege X20W-E-10F Portege X20W-E-10X Portege X20W-E-BTO
Please open the back cover of your laptop to check the original battery size and capacity before placing an order. Please scroll down to the list to purchase.
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 loss. Please re-install the battery and make sure that the battery cable and the motherboard interface are tightly inserted.
Maybe due to conductive material damage 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 to update.
MULS PA5267U-1BRS Replacement Battery How to Install A New Battery: Tips for Battery Maintenance: Why the laptop does not recognize the battery