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Finally got 8 GB RAM and a UltraBay battery on my T61. It is attracting visitors : r/thinkpad
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IBM Lenovo ThinkPad T61 R61 T400 R400 Widescreen laptop battery 41U3196, 41U3198, 42T5262, 42T5264,41U3197,42T5229,42T5225, 42T5226, 42T5227, 41U3196 41U3198,33+
Review: Lenovo T61 | WIRED
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Lenovo T61 Battery for sale | eBay
IBM Thinkpad T61 Battery Replacement - iFixit Repair Guide
Big Battery = Decent Battery Life - Lenovo ThinkPad T410: Built for Business
6 Cell Battery for IBM Lenovo Thinkpad T60 T61 R60 R61 R500 T500 W500 40Y6798 40Y7660 40Y7699 40Y7700 40Y7710 40Y7711 41N5666 42T4502 42T4513 42T4544 42T4545 42T4560 42T4561 - Walmart.com
Review IBM/Lenovo Thinkpad T61 Notebook - NotebookCheck.net Reviews
Battery for Lenovo ThinkPad T400 2764 R400 7443 R61 7732 7733 7737 T61 5200mAh | eBay
Review Lenovo Thinkpad T61p Notebook - NotebookCheck.net Reviews
Lenovo ThinkPad T61 Review | Trusted Reviews
Review Lenovo Thinkpad T61p Notebook - NotebookCheck.net Reviews
Lenovo Thinkpad T61 Widescreen - Review 2012 - PCMag UK
Lenovo ThinkPad T61 reviewed | Engadget
Banggood 10.8V 4400 42T5255 Laptop Battery For Lenovo ThinkPad R61 T61 R400 T400 T61i T61P T61U R61i 42T5227 ASM 42T5265 FRU - AliExpress
Unlocking Thinkpad Batteries | Hackaday
Repairing / Unlocking Lenovo T400, T60, T61 batteries 42T5262 – Laptop Battery Chip Reset, Reprogram and Repair – Laptop Battery Analyzer and Repair Forum
