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ThinkPad T40 T41 T42 T43 R50 Laptop Replacement Battery

4.1 out of 5 stars 171 customer reviews

Price: $15.88 & FREE Shipping on orders over $49. Details
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  • Capacity: 6-Cell 4400mAh
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$15.88 & FREE Shipping on orders over $49. Details Only 9 left in stock. Sold by futurebatt and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

  • ThinkPad T40 T41 T42 T43 R50 Laptop Replacement Battery
  • +
  • IBM/Lenovo Thinkpad CMOS coin cell battery - 02K6541 by IBM
Total price: $15.89
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Product Description

ThinkPad T40 T41 T42 T43 R50 Laptop Replacement Battery - for IBM Notebook PC - 100 % OEM Equivalent to 08K8214 08K8192 08K8193

Product Information

Product Dimensions 1.7 x 11 x 3.5 inches
Item Weight 10.4 ounces
Shipping Weight 10.4 ounces (View shipping rates and policies)
Manufacturer LENOVO
ASIN B000HEEG54
Item model number Atomic Buy
Customer Reviews
4.1 out of 5 stars 171 customer reviews

4.1 out of 5 stars
Best Sellers Rank #1,544 in Computers & Accessories > Laptop Accessories > Batteries
Date first available at Amazon.com October 2, 2001

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Customer Reviews

Top Customer Reviews

By E. Butler on November 2, 2010
Verified Purchase
Just received my battery for an IBM T43 computer. It fit fine and the computer recognized the new battery with no issues. It came charged at about 63% and said it would take a little over an hour to fully charge. At a current 88% charge remaining it's saying that I have 2:14 minutes of power, so I'm estimating that it's maybe 2:45 when fully charged, which is about what I got from the original battery when this five year old laptop was new. So far I'm pleased with the quality for the price. Shipping was pretty fast even with super saver.
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Verified Purchase
I bought this as a replacement for my OEM battery. To my surprise this battery dies with in a week. I got it as new from Amazon listing, not sure if they cheated me. But the end result is waste of money and time. No more items from this seller for sure.
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Verified Purchase
Used with IBM Thinkpad T43. Model 1871-xxx

it fits, but BARELY. It is slightly bigger and the edges do not fit flush.
battery life about >2 hrs with light internet surfing.
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Verified Purchase
I purchased this battery to replace a toasted T41 battery. I am surprised at the life I get out of my T41 running Ubuntu 9.04.

With other laptops I usually keep my power supply close by for when my battery dies abruptly (i.e. it says 10 minutes and the next moment "I am shutting down messages").

This battery has been running great. I have not had the sudden power drops like described above. 10 minutes is 10 minutes give or take. It fit perfect and has run flawless to date. An easy choice for anyone needing a replacement on a T41 (T2374151).
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Verified Purchase
This battery extended the portable use of my old Thinkpad T43 laptop to 2 and 3/4 hours. My old battery couldn't do better than 1 and 1/2 hours. Older laptops normally do not have the duration that newer ones have with their extended-life batteries, but the boost I got from this one suits me just fine. Replacing my old one was a snap since this fit into the battery chamber perfectly. All in all, I'm very satisfied.
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Verified Purchase
I ordered a replacement battery for a ThinkPad T43. The first one arrived swollen and would not fit. They promptly sent another and paid for shipping to return the bad battery. All in all good service.
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Verified Purchase
I purchased this battery as a replacement for a Thinkpad T42 I was giving to a friend. I used it for a week or so prior to sending the notebook off and was impressed with the battery life. So far, my friend enjoys the battery life and has had no problems with it at all. Seems like a great purchase thus far, but it is still early in the battery's life.
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Verified Purchase
Not much to say other than it works as advertised. It's an exact replacement for the OEM battery. I've been getting about 2.5 hours per charge while using my T43 on the internet using a wifi connection. That seems to be a reasonable amount of time for this battery on my laptop.

If there is a downside it is that the drain rate becomes non-linear near the end of the charge. I've found it to be linear down to 20%. But you will want to safe and shutdown at 10% as the charge depletes quickly past that point.
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