NOTE: Only for 14.1" widescreen laptop battery. Not compatible with narrow screen IBM ThinkPad T61 R61 series. Battery Cells are the most important. Buy with confidence! We have been manufacturing the laptop battery for 11 years. Tree.NB laptop batteries include only the highest quality battery cells and components. Compatible with part number: For Lenovo: 42T5225, 43R2499, 42T4530, 42T4531, 42T5227, 42T5262, 42T5264, 42T5229, 41U3196, 42t5263, 42t5230, 41U3197, 42T5226 Compatible with Laptop models Lenovo ThinkPad R400 Series Lenovo ThinkPad R400 7443 Lenovo ThinkPad R61 Series (14.1" widescreen) Lenovo ThinkPad R61 7732, ThinkPad R61 7733, ThinkPad R61 7734, Lenovo ThinkPad R61 7735, ThinkPad R61 7736, ThinkPad R61 7737, Lenovo ThinkPad R61 7738, ThinkPad R61 7742, ThinkPad R61 7743, Lenovo ThinkPad R61 7744, ThinkPad R61 7751, ThinkPad R61 7753, Lenovo ThinkPad R61 7754, ThinkPad R61 7755 Lenovo ThinkPad R61i Series (14.1" widescreen) Lenovo ThinkPad R61i 7732, ThinkPad R61i 7742 Lenovo ThinkPad T400 Series Lenovo ThinkPad T400 2764, ThinkPad T400 7417 Lenovo ThinkPad T61 Series (14.1" widescreen) Lenovo ThinkPad T61 1959, ThinkPad T61 6377, ThinkPad T61 6378, Lenovo ThinkPad T61 6379, ThinkPad T61 6480, ThinkPad T61 6481, Lenovo ThinkPad T61 7658, ThinkPad T61 7659, ThinkPad T61 7660, Lenovo ThinkPad T61 7661, ThinkPad T61 7662, ThinkPad T61 7663, Lenovo ThinkPad T61 7664, ThinkPad T61 7665 Lenovo ThinkPad T61p Series (14.1" widescreen) Please Note: Please make sure that the product shape of slot and gap are the same size. The battery part numbers listed in the description matches the battery part number on your original battery before you purchase.
S**N
Only 4% wear and a solid 2.5 - 3 hr battery life
Buying replacement batteries for my T400, I've received batteries with almost 20% wear, batteries that didn't really fit, and batteries that abruptly died when the indicator was showing 50%.This battery measures 4% wear on HW Monitor. In the two cycles I've used it so far, it has given me a solid 2.5 hrs to 15% with a 3.06 Ghz T9900 CPU on mild power saving and full screen brightness. It's a gem. I consider it a great value for money.PS: Since Amazon occasionally aggregates reviews for multiple products, I should note that this review is for ASIN: B07FZX7PBR - TREE.NB with manufacturer number OA04.
H**S
Charged right up and has a better Warranty than most others
I purchased this same battery 18 Months ago for a different computer and it still holds a good charge, so when our same make and model computers battery finally failed I didn't hesitate to buy another one. It came in 8% charged so I drained it down to 2% as instructed and plugged the power supply in, within 2 Hours it was up to 100% charge.Yes it costs more than some replacements but I like the 24 Month warranty.
M**4
Excellent battery
I got this laptop battery a few days ago.. Didn't know what to expect since it was at such a good price. I have to say that it far exceeded my expectations. It is good for all day on my older Thinkpad laptop R400. Great battery!
W**.
Very Good
This battery arrived quickly. Replaced the one that unexpectedly died on me with the freshly ordered one. It wqs a perfect fit. The unit came pre-charged so it was useable immediately without having the unit hooked up to AC. I did, however, completely charge it and it works like a breeze. Very happy with my purchase.
J**E
Lighter than I expected
(that's a good thing). Helped bring my classic Lenovo ThinkPad back to life.
W**T
Dont buy it if you have a t61! doesnt fit!
Did not Fit a T61 in either of two listed models. Design is slightly to large. possible thicker plastics or mold. locking mech didnt function properly at all. Cannot say anything about anything else because of its poor design.
A**R
Laptop shutting off w no warning since installing this new battery & charging per instruction .
Never had this problem in the past with many other batteries. Suddenly my laptop just turns off like a light. No warning... and the time projected when I click on the battery icon is far longer than the ACTUAL run time.Could I have received a defective battery? --- I believe I ordered the correct one for my Lenovo T400 Thinkpad laptop.
R**Y
Most excellent
Good batt. Excellent pric3. Thanx!
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