Replacement Battery BN42

Best Sellers in Cell Phone Batteries, high-quality, high-performance battery for BN42, XIAOMI Replacement Battery BN42 For XIAOMI Redmi 4

Cell Phone Batteries BN42 XIAOMI Redmi 4

In Stock
1000 GBP1428 GBP

Order High Quality Replacement Cell Phone Batteries BN42 with confidence from us.View details and compatible models below. is UK's most trusted online battery retailer. With superior quality products & after sales service, we are available to help you, should you need it.
Brand: xiaomi
SKU: 22LK232_Te
Type: Li-ion
Capacity: 4100mAh/15.8WH
Voltage: 3.8V
Color: Black

Can replace the following part numbers:


Fits the Following Models:

For XIAOMI Redmi 4

Featured Product Image for XIAOMI Battery BN42:

  • XIAOMI Battery BN42
  • XIAOMI BN42 Battery Replacement UK SHOP

    We mainly sell Cell Phone Batteries. All of our XIAOMI BN42 battery have been rigorously tested for reliability and safety to ensure high-quality and standards. We guarantee our XIAOMI BN42 battery for 1 year and we offer a 30 days money-back refund on every Cell Phone Batteries we sell.

    This battery is a non-original but brand-new general replacement battery. We mentioned the brand name and product model of XIAOMI just to show that this battery is compatible with the XIAOMI BN42 battery.
  • high quality cells

How to choose correct BN42 battery?

The shape of BN42 battery and the location of connection must be as same as your original battery.
Your BN42 battery part number or model is listed on the compatibility list before making a purchase.
You also can send the picture of your old BN42 battery to us and we can help you to choose it.
10.8v and 11.1 are compatible
14.4v and 14.8v are compatible
The 10.8v(=11.1v) and 14.4v(=14.8v) are the different voltages. They are not compatible. Please ensure you choose the right battery.

how to order

When do I need to replace the BN42 battery ?

If you frequently experience unexpected shutdowns and / or battery life has significantly shortened, this replacement part will help you. Battery malfunction and service life can depend on many factors: charging cycles, age, temperature changes, so it is usually recommended to replace it every 2-3 years when its capacity drops to 80% or less.

What is battery charging cycles?

The reliability of lithium-ion/li-polymer batteries depends on the specifics of its use. Battery life is measured in charging cycles. One cycle is a cycle from full battery discharge (down to 0%) to full charge (up to 100%).

The battery can operate for approximately 500 full charge cycles, and exceeding the manufacturer's specified number of cycles can cause the battery to malfunction, usually its capacity is reduced and then the device discharges faster and needs to be recharged more often.

Recommendation: To prolong the life of the battery, you should try to start charging the battery from 15-25% and charge it up to 80%.

Cell phone battery replacement

While using the phone for a long time, you may notice that the batteries of iPhone, Samsung, Nokia, Xiaomi, LG, Huawei or other phone starts to drain faster than usual or its standby time has become shorter than before. So you need to replacement the battery.

Once you have purchased the required iPhone, Samsung or other phone battery, it is possible to change it by yourself - the difficulty of replacement depends on your phone model.

Cell phone battery replacement is not difficult and there is no need to disassembly the phone (e.g., Samsung Galaxy S5, S4, Note 4, LG G3), just go ahead and replace it yourself.

But there are some phones which require disassembly for the replacement because some lithium batteries are integrated inside the device and are not so simple and easy to remove (e.g., iPhone 7, 7 Plus, 8, 8 Plus, X, XS, 11, 11 Pro 12, 12 Pro) so most likely you will need help replacing the battery.

  • How fast can I get my order?

    Shipping orders are typically delivered in 7-20 business days. Shipping is usually performed by UK Postal Service, DHL, FedEx or UPS.


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Our advantage -

  • - Wide range of products

    We offer a wide range of products and make sure to show you all the details, allowing you to quickly search and compare products.

  • - Transparent prices

    In addition to excellent service, you will always be sure to find very competitive prices and absolutely transparent guarantees.

  • - Standard high quality

    Each product is strictly controlled and quality tested so that customer service can purchase with maximum safety

Battery Warranty

  • 1.30-Days Money Back Guarantee.
  • 2.One-Year Warranty.
  • 3.100% Security Payment. We protect every client's privacy, so please buy with confidence!
Battery For laptop
Shipping and returns.

If you ordered a battery and it did not solve your issue - you either received a defective battery or the battery was not the cause of your issue. If we sent a defective battery we will replace it with a brand new battery for free within the first 30 days. If you discover that you did not need a new battery you can return it for a full refund on the battery less shipping costs within 30 days. Here you can find out more about our return policy.