Xiaomi BN4D 3.87V 4.45V 4200mAh 16.2WH Replacement Battery for Xiaomi MIUI 5Pro

This is a rechargeable Xiaomi 3.87V 4.45V 4200mAh 16.2WH BN4D Battery . High quality and long lifetime, this BN4D battery lets you work seamlessly when you are on the move for business trips or vacations. All our Li-ion replacement batteries for Xiaomi BN4D Cell Phone have been tested and proven to match and/or exceed original battery performance and are 100% compatible with Original Manufacturer Specifications. Every piece of our replacement battery for Xiaomi BN4D has been tested and validated on Xiaomi systems to ensure the safety for your Xiaomi MIUI 5Pro. Increased capacity extends your workable hours at the office, in meetings or classes, or while traveling.

BN4D Replacement Xiaomi BN4D 3.87V 4.45V 4200mAh 16.2WH Battery. Buy cheap Xiaomi BN4D Replacement Battery from batteriestore.co.uk now. We have a strict testing process to ensure that your ordered products (like this battery for Xiaomi BN4D) are functionally correct before they are packed and sent to you. And before placing an order please make sure that your old original Xiaomi BN4D battery’s shape is same to our batteries’ images as below. Free shipping and one year warranty!

Xiaomi BN4D 3.87V 4.45V 4200mAh 16.2WH Replacement Battery

Product Description:

Type :Li-ion
Brand : Xiaomi
Voltage : 3.87V 4.45V
Capacity :4200mAh 16.2WH


✔ Quality replacement battery with high Capacity
✔ Longer lifespan – thanks to modern Lithium technology without memory effect.
✔ Guaranteed safety: Protected against Short-circuits, Overheating and Overvoltage
✔ Each cell is separately tested in order to ensure professional standards are met.
✔ 100% compatible in replacing your original battery

Compatible Part Numbers:


Compatibile con i seguenti apparecchi :

Xiaomi MIUI 5Pro

How to care for your BN4D battery.

This is the Replacement Xiaomi BN4D Battery, You can extend the life of your BN4D battery significantly through the proper care and handling of your battery.

  • Any new BN4D battery should first be fully charged by leaving it plugged in overnight. Once a computer battery is fully charged it will no longer accept any more power. It is a common practice to leave Cell Phones plugged in after they have been turned off so that the battery has a full charge the next time you use your Cell Phone. It is probably fully charged within 5 hours.
  • A brand new BN4D Cell Phone battery is in a weakened condition since it has not been conditioned yet. Condition and break in your new battery by performing 5 partial discharge and recharge cycles the first week you receive your new battery.
  • Run on battery power without the AC adapter cord at least once a week to keep the BN4D battery cells active and at their peak potential. When your Cell Phone is plugged into the power adapter the battery goes to ‘standby mode’ while your Cell Phone runs directly on electricity from the wall outlet.
  • Even though your battery indicates it is fully charged, your battery will return to a weakened state again in a few months if it does not get some exercise through partial discharge and recharge cycles while running on battery power alone.
  • If your BN4D battery has not been actively used 2 months or more, condition your battery again with 5 partial discharge & recharge cycles to increase the batteries capacity and run time.
  • Don’t run your battery all the way to empty. Your battery will have a longer service life if it receives shallow discharge and recharge cycles. Research has shown that the useful life of the battery will be much longer if you begin to recharge the battery any time before reaching 20% of the remaining power capacity. Recharging the BN4D battery even after 10 minutes will not reduce the battery’s life span as lithium batteries do not have the memory effect which was found in older NiCad battery technology. NiCad batteries have never been used in Cell Phones, even the earliest models.
  • Never run your battery below the 2% critically low warning point. If your battery is run below this point it may not have enough energy to even recharge. This may effectively ‘kill’ your BN4D battery.

How can I extend your battery run time?

You can extend your BN4D battery run time by minimizing the power drain on your battery. A 3 cell battery will run approximately 2 to 2-1/2 hours when the battery is new. Even longer times can be achieved by minimizing the power consumption of your laptop. Here are the top ways to reduce your power consumption.

  • Avoid using the CD or DVD drive as the motor consumes a fair amount of power.
  • Turn off your wireless finder if you are not using the internet.
  • Remove any devices plugged into your USB ports or other ports.
  • Close out programs you are not using. By minimizing the load on your CPU, sometimes you can avoid having the cooling fan turn to its high speed mode.
  • Increase your memory to 4 Gigabytes. This creates less work for your hard drive. Data is temporarily written to your hard drive when your memory is not sufficient to hold all the data on the many pages you may be accessing.
  • Reduce the brightness of your laptop screen. This is the number one drain on your battery by far.

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