SKU: 75332406174

Lithium ion replacement battery (8-cells) for lenovo ibm thinkpad x40 (type 2369null

Sale price$112.46 Regular price$124.96
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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

Lithium ion replacement battery (8-cells) for lenovo ibm thinkpad x40 (type 2369nullThe BTI Lithium Ion Notebook Battery is engineered to deliver dependable, portable power for demanding notebooks and portable devices. Built with an 8 cell Li Ion configuration, this battery packs a robust 4500mAh capacity at 14. 8V DC, offering extended runtimes without sacrificing compactness. Designed for travelers, students, and professionals who rely on their devices throughout the day, this battery combines energy density with a smaller, lighter

The BTI Lithium Ion Notebook Battery is engineered to deliver dependable, portable power for demanding notebooks and portable devices. Built with an 8-cell Li-Ion configuration, this battery packs a robust 4500mAh capacity at 14.8V DC, offering extended runtimes without sacrificing compactness. Designed for travelers, students, and professionals who rely on their devices throughout the day, this battery combines energy density with a smaller, lighter footprint to keep your workflow uninterrupted. Its proprietary battery size is crafted for a precise fit, ensuring reliable usability and secure installation in compatible notebook chassis. If you’re looking for a high-performance replacement or an upgrade to maximize notebook uptime, the BTI Lithium Ion Notebook Battery is optimized to help you stay productive on the go while maintaining safety, durability, and consistent power delivery.

  • High-energy, long-run capability: With a 4500mAh capacity at 14.8V DC, this BTI battery is designed to extend usage between charges, enabling longer work sessions, more media playback, and greater flexibility for daily tasks without frequent recharging. Ideal for students, professionals, and remote workers who depend on constant uptime.
  • 8-cell Li-Ion design for balanced performance: The 8-cell configuration provides steadier power delivery and improved heat management compared to lower-cell alternatives. This setup supports smoother performance during demanding tasks such as video editing, presentations, and multitasking, while helping to maintain battery health over time.
  • Smaller and lighter for portable devices: Engineered to be more compact and lighter than typical rechargeable batteries, this BTI battery reduces the overall weight of your notebook setup. The portable form factor enhances travel convenience and reduces bulk in backpacks or laptop bags, so you can work comfortably wherever you are.
  • Proprietary battery size for reliable usability: The battery size is purpose-built to fit specific notebook models with a snug, secure connection. This proprietary form factor improves reliability, minimizes fit issues, and supports easy installation, so you can replace or upgrade with confidence.
  • Designed for everyday portability and performance: Beyond raw capacity, the BTI Lithium Ion Notebook Battery emphasizes consistent power delivery, rugged construction, and dependable usability in portable devices. It’s crafted to withstand daily charging cycles and provide dependable power whenever you need it most.

Technical Details of BTI Lithium Ion Notebook Battery

  • Voltage: 14.8V DC
  • Capacity: 4500mAh
  • Chemistry: Lithium Ion (Li-Ion)
  • Cells: 8-cell configuration
  • Form factor: Proprietary battery size for better fit and reliability

How to Install BTI Lithium Ion Notebook Battery

Follow these simple steps to install your BTI Lithium Ion Notebook Battery safely and correctly:

  • Power down the notebook completely and unplug it from any power adapters or external devices.
  • Close all programs, disconnect peripherals, and place the notebook face down on a clean, soft surface to protect the screen.
  • Remove the back cover or access panel according to your notebook’s manual to reveal the battery bay.
  • Disconnect the old battery if present, then align the BTI battery contacts with the notebook’s connector. Ensure the orientation is correct and the contacts are fully seated.
  • Slide the battery into the bay until it sits flush and the locking latch engages. Gently test that the battery is securely attached by applying a light tug on the edge.
  • Replace the back cover, reconnect the notebook to AC power, and power on to verify that the battery is recognized and charging properly.
  • Allow a full initial charge if required by your device’s charging protocol, then monitor performance during regular use. If the notebook does not recognize or charge the battery, recheck alignment and consult your manual or support resources for model-specific guidance.

Frequently asked questions

  • Q: What is the voltage of the BTI Lithium Ion Notebook Battery? A: The battery operates at 14.8V DC, delivering stable voltage suitable for most notebooks that require this specification.
  • Q: What capacity does this battery provide? A: It offers 4500mAh of capacity, which translates to extended runtimes between charges for everyday tasks and multimedia use.
  • Q: How many cells does the battery have? A: The BTI battery uses an 8-cell Li-Ion configuration to balance power, efficiency, and thermal performance for reliable long-term use.
  • Q: Is this a universal notebook battery? A: No. The battery features a proprietary size designed for a precise fit in select BTI-compatible notebooks and portable devices. Please verify compatibility with your model’s battery bay before purchasing.
  • Q: Is the battery safe for portable use? A: Yes. Built with Lithium Ion chemistry and a design focused on durability and safety, it supports typical charging cycles with appropriate device safety features. Always follow standard safety practices during installation and use.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 75332406174

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Verified Purchase
Waleed Shipp
Massapequa, US
★★★★★ 2
Eufy dropped the ball on this vacuum
Style: L50 SES
I’ll start by saying the reason I purchased this vacuum, is because I have a Eufy 25c robot vacuum that is very dependable. I decided I wanted an upgrade because the 25C was great for cleaning, but I had to empty it way too often. I just knew I would love the L50 SES. I thought it was just what I was looking for a self emptying robot vacuum with a 60 day fill capacity. Allowing 2 months before I needed to touch my vacuum. Here’s where things went wrong. I never got a chance to test the vacuum because it wouldn’t connect to my WiFi and I tried everything. Now this wouldn’t have been a problem if the L50 came with a remote control like the 25C. Unfortunately I had to rely on the App and since the L50 couldn’t connect to my WiFi, I couldn’t control the vacuum. The reason I gave 2 stars is because the customer service at Eufy is awesome. I was given the option to replace the vacuum with a new one but after researching the L50 i decided to return it for a refund. Apparently this model has a defect, because I found so many negative reviews about the same issue with the same model. The thing is I never read reviews because I have a Eufy smart scale, 25C robot vacuum and an Eufy security system and everything works perfectly. So in the end I purchased a Shark Matrix Self emptying robot vacuum and a Shark self emptying stick vacuum. If Shark’s vacuum preforms well, Eufy might have lost a valued customer. I hope this review helps someone make a informed decision. By the way Eufy self emptying vacuum needs replacement bags and the Shark Matrix robot vacuum doesn’t need bags. I will say the suction and design on the Eufy L50 SES was great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2025
I
Verified Purchase
Ilya
Alexandria, US
★★★★★ 5
Much better than the old model.
Style: L50 SES
I had an old s11 that finally died. This one is much better. It maps the house and follows a snake pattern. Once the mapping is finished you can select what rooms you want to clean. I like the self emptying feature. Plenty of battery life.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 19, 2024
B
Verified Purchase
Bennett
Bozeman, US
★★★★★ 3
Good performance, flaky Wi-Fi connection
Style: L50 SES
The L50 physically works great - it does a good job of picking up dust and dirt at the end of the day. The pathfinder and route planning algorithm is fairly efficient at determining the best way to clean a room. Sometimes it kicks around bits of dust with its spinning brush without picking it up, but it's not often. What has been terrible, however, is the Wi-Fi support. Since our provider disabled 2.4 GHz support from their router modem without notice, I use a Mac Mini to supply the 2.4 GHz signal, and even though the Eufy is next to it and my phone gets full signal strength, it still can't connect to it half the time. After it fails to connect, it needs to be restarted or even reset to try to get the connection again. Support doesn't seem to be helpful in offering a solution.
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Reviewed in the United States on May 23, 2026
M
Verified Purchase
Marcia
Carnegie, US
★★★★★ 5
Quality product
Size: 26 Pcs for Roborock Saros 10R
Very nice quality replacement parts. Worth the money, also fast shipping from the seller.
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Reviewed in the United States on April 3, 2026
A
Verified Purchase
aksman
Phoenix, US
★★★★★ 5
Great for Robodock
Size: 26 Pcs for Roborock Saros 10R
Works great for my Robodock.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026

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