Laptop Battery for LENOVO THINKPAD T440 T440S T450 45N1108

Laptop Battery LENOVO THINKPAD T440 T440S T450 45N1108

Laptop Battery Lenovo

Models: ThinkPad T440, T440s, T450

P/N: 45N1108

High quality compatible laptop batteries

These compatible batteries for laptops are designed to offer performance equivalent to that of the original battery, maintaining autonomy, stability and safety in daily use.

They are not original batteries from the laptop manufacturer, but compatible batteries developed under demanding technical standards, which allows us to offer an excellent quality/price ratio without compromising the operation of the equipment.

Why choose a quality compatible battery

A well-designed compatible battery not only reduces cost, but can offer completely reliable performance if it meets the appropriate parameters.

These batteries are manufactured under certified quality control processes in accordance with ISO 9001 and ISO 14001 standards, which guarantees a high level of demand in both manufacturing and environmental management.

Prioritized in these batteries are:

• Real compatibility with the equipment
• Stability in charging and discharging
• Integrated electronic protections
• Optimized lifespan

This allows a safe and efficient user experience, comparable to the original battery under normal use conditions.

What you should check before purchasing

To ensure that you choose the correct battery, it is important to verify the following data:

• Original reference of the battery
• Exact laptop model
• Voltage (V) and capacity (mAh or Wh)
• Shape and type of connector

In each product sheet you will find a list of compatible models and equivalent references to facilitate identification.

FEATURES

Specifications

Compatible models

• Lenovo ThinkPad S440
• Lenovo ThinkPad S540
• Lenovo ThinkPad T440
• Lenovo ThinkPad T440s
• Lenovo ThinkPad T450
• Lenovo ThinkPad T450s
• Lenovo ThinkPad T460
• Lenovo ThinkPad X230s
• Lenovo ThinkPad X240
• Lenovo ThinkPad X240s
• Lenovo ThinkPad X250
• Lenovo ThinkPad
• Lenovo ThinkPad L470 20J4000K
• Lenovo ThinkPad T440 20B6005US
• Lenovo ThinkPad T440 20B6008BUS
• Lenovo ThinkPad T440 20DT6005BUS
• Lenovo ThinkPad T440S 20AR003Y
• Lenovo ThinkPad T440S 20AR0044US
• Lenovo ThinkPad T440S 20A00046US
• Lenovo ThinkPad T440S 20BU000C6US
• Lenovo ThinkPad T450 20BU000GUS
• Lenovo ThinkPad T450 20DJ
• Lenovo ThinkPad T450 20AL008YUS
• Lenovo ThinkPad X240 20A00054
• Lenovo ThinkPad X240 20AL008YUS
• Lenovo ThinkPad ThinkPad X250 20CQ0008HUS
• Lenovo ThinkPad X250 20CQ0008US
• Lenovo ThinkPad
• Lenovo ThinkPad T440 7000C
• Lenovo ThinkPad T440S 20AQ004EUS
• Lenovo ThinkPad T440S 20AR001M
• Lenovo ThinkPad T440S 20AR005A
• Lenovo ThinkPad T450 20BU00C6US
• Lenovo ThinkPad T450S 20BW000G
• Lenovo ThinkPad X240 20AL007A
• Lenovo ThinkPad X240 20AM0054
• Lenovo ThinkPad X250 20CM005UUS
• Lenovo ThinkPad To avoid errors and returns, compare your laptop battery with the one shown in the photographs. In some cases they may match the P/N number and not physically match.

  This laptop battery is compatible with the indicated models (and more). You can see the complete model of your laptop located below it. If you cannot find the model of your laptop or do not know which battery is compatible, please ask and we will be happy to inform you.

  
  

  Electronic protections

  Against deep discharge	Automatic cut-off to protect the cells.
  Thermal protection	Temperature monitoring and cut-off.
  Against short circuits	Instant safety response.
  Charging temperature control	Stable and safe charging.
  RoHS	Restriction of substances dangerous

  
  

  Your model does not appear in the list?

  It is possible that your laptop is compatible with this battery even if it does not appear explicitly in the list. This may occur because some manufacturers use the same battery in different models or variants.

  In this case, it is recommended to check the following:

  • The reference of the original battery matches one of those indicated
  • The voltage is exactly the same (critical data)
  • The connector and shape are identical
  • The dimensions are compatible with the laptop housing

  If these points coincide, it is very It is likely that the battery is compatible with the device, even if the model is not listed.

  In case of doubt, it is advisable to verify compatibility before making the purchase to avoid errors.

  
  

  Real advantages when replacing the battery

  • Recovers autonomy
    Allows you to use the laptop again without constantly depending on the charger.
  • Stable operation
    Avoid shutdowns unexpected events and improves equipment performance.
  • Longer lifespan
    Reduces the need for frequent replacements.
  • Easy installation
    In most cases, replacement is quick and does not require advanced technical knowledge.

  
  

  Compatibility: the key point

  Compatibility is the most important aspect when choosing a laptop battery. Therefore, in this sheet you will find all the compatible references and equivalent models associated with this product.

  Choosing correctly guarantees proper operation and avoids problems during installation or use.

  
  

  Recommendations for replacing the battery

  Replacing the battery of a laptop is a simple process in most cases, but it is important to follow a series of recommendations to guarantee a correct and safe installation.

  Before installation

  • Turn off the laptop completely (not in sleep mode)
  • Disconnect the charger and any peripherals
  • Work on a clean, dry surface free of static electricity

  During replacement

  • Handle the battery with care, avoiding bumps or deformations
  • Do not force connectors or parts
  • Make sure that the connector fits correctly in its position
  • Check that the battery is securely fixed in its housing

  First use of the battery

  To optimize performance and useful life, it is recommended to perform a complete initial charging cycle:

  • Charge the battery to 100% before first use
  • Use the laptop until the charge is reduced to approximately 10-15%
  • Recharge fully

  This process helps to correctly calibrate the laptop's power management system.

  Tips to extend battery life

  • Avoid frequent full discharges (0%)
  • Do not keep the battery constantly at 100% for long periods
  • Avoid prolonged exposure to high temperatures
  • Always use compatible chargers that are in good condition

  Important

  If during installation you detect that the battery does not fit correctly or the connector does not match exactly, the installation should not be forced. In that case, it is advisable to check the compatibility before continuing.