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BTI 5B11F21953 57Wh lithium-ion battery showing connector and CE markings
BTI 5B11F21953 57Wh lithium-ion battery showing connector and CE markings
Close-up of CE certification mark on BTI 5B11F21953 Lenovo laptop battery
UKCA compliance logo on BTI 5B11F21953 3-cell lithium-ion replacement battery

Battery Technology BTI 5B11F21953 57Wh 3-cell Lithium-Ion Battery

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$75.99 exc. VAT Note: VAT will be charged for UK & EU Countries at checkout. For Zero VAT (for EU buyers), please provide a VAT number at checkout.

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Dispatch Time: Next Working Day Dispatch timelines are estimates and may vary due to unforeseen delays of 1-2 working days for small orders. Larger quantities may require additional processing time.

Product Code: BTEL-3377

MPN #: 5B11F21953-BTI

Product Condition: New

Running out of power on the go can halt your work or travel plans, leaving you frustrated and stuck. The Battery Technology BTI 5B11F21953 57Wh 3-cell Lithium-Ion Battery delivers reliable, long-lasting energy for your Lenovo devices, keeping you productive wherever you are. Its high capacity ensures you stay connected without frequent recharging, making it an essential upgrade for anyone needing dependable mobility.

Key Features of a 57Wh Lithium-Ion Battery
  • Brand compatibility: Lenovo. Fits seamlessly into compatible Lenovo laptops.
  • Battery colour: Black. Discreet look that matches most device designs.
  • Battery capacity: 57 Wh. Provides extended runtime for demanding tasks.
  • Battery voltage: 11.52 V. Supplies stable power for optimal performance.
  • Number of battery cells: 3. Balanced cell configuration for safety and efficiency.
  • Battery technology: Lithium-Ion (Li-Ion). Offers high energy density and low self-discharge.
  • Compliance certificates: CE, UKCA. Meets European safety and quality standards.
  • Number of batteries included: 1 pc(s). Ready to replace your old unit immediately.
  • Summary capacity: 4950 mAh. High milliamp-hour rating translates to longer use between charges.

Why Choose a Battery Technology Lithium-Ion Battery

If you own a Lenovo laptop and find the original battery draining too quickly, you need a replacement that restores the original endurance. Many users struggle with short battery life, frequent charging interruptions, and reduced productivity. This Battery Technology Lithium-Ion Battery matches the original specifications, delivering the power you expect while fitting perfectly into your device, so you can work, study, or travel without worry.

Benefits of Battery Technology Lithium-Ion Battery
  • Extended runtime: Keeps your laptop alive for longer periods, reducing charging breaks.
  • Reliable power: Stable voltage ensures consistent performance during heavy use.
  • Safety certified: CE and UKCA approvals guarantee compliance with safety regulations.
  • Seamless fit: Designed for Lenovo models, installation is straightforward and hassle-free.
  • High capacity: 57 Wh provides the energy needed for demanding applications.

Usages of a 57Wh Lithium-Ion Battery

This battery is ideal for replacing the original pack in Lenovo laptops used for office work, creative projects, or travel. It also serves as a spare power source for professionals who need uninterrupted performance during meetings, presentations, or remote work sessions.


Specifications
Features
Brand compatibilityLenovo
Product colourBlack
Battery capacity57 Wh
Battery voltage11.52 V
Number of battery cells3
Battery
Battery capacity57 Wh
Battery technologyLithium-Ion (Li-Ion)
Certificates
Compliance certificatesCE, UKCA
Packaging data
Number of batteries included1 pc(s)
Summary Details
Battery capacity4950 mAh

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