Replacement B31BN91 11.4V 48Wh Battery for Asus K401LB5200 K401LB5500

B31N1424 48Wh Replacement Battery For ASUS K401 K401LB K401LB5010 K401LB5200

Replacement B31BN91 11.4V 48Wh Battery for Asus K401LB5200 K401LB5500

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  • Product Code: B31BN91
  • Availability: In Stock
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  • AU$64.19
  • Ex Tax: AU$64.19

Replacement B31BN91 11.4V 48Wh Battery for Asus K401LB5200 K401LB5500

Battery Type: Li-ion, Battery Volt: 11.4V, Capacity: 48Wh, Battery Color: Black, Condition: 100% New, Warranty: 12 months

Compatible Model Numbers:

K401LB, K401LB5010, K401LB5200, K401LB5500, Notebook K Series K401LB

Compatible Part Numbers:


Follow the notice below, Better using your Asus B31BN91 Laptop Battery

  1. Storage - Store your B31BN91 Laptop Battery in a clean, dry, cool place away from heat and metal objects. The Asus B31BN91 batteries will self-discharge during storage; remember stored at about 40% state-of-charge.
  2. Charge and discharge - For lithium ion batteries, you do not need to discharge them fully and recharge constantly. You need to do a full discharge only about every 30 charges. Do not charged to higher voltages than its threshold voltage
  3. Exercise Your B31BN91 Battery - Do not leave your batteries dormant for long periods of time. We recommend using the battery at least once every two to three weeks. If a battery has not been used for a long period of time, perform the new battery break in procedure described above.
  4. Calibrate Your batteries - If your Battery's 76% even less in work , you must fully charge, fully discharge, and then fully recharge the Laptop Battery pack.
    Consider removing the B31BN91 battery from a laptop when running on fixed power
  5. Do not short-circuit. A short-circuit may cause severe damage to the battery.
  6. Avoid propping your laptop on a pillow, blanket, or other soft surface that can heat up. Your B31BN91 battery is a lot less efficient when not within its standard operating temperature range.


  • If the capacity is low in current,CPU will be in electricity-saving model and battery can not be charged.In this case,take off the battery and fit on to rouse the CPU. The B31BN91 battery can be charged then.
  • Remove the battery when don't use if for long time,or the currency will be lost and the cell will be damaged.
  • Recharge the battery as the circle more than once per month to make the management of capacity reach its best status, and prolong Asus  B31BN91 Laptop Battery useful life.


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