I designed and built a 162Wh battery for my T420 : r/thinkpad
Write-up of my setting up the Lenovo ThinkPad T420 laptop (November 2016)
ThinkPad T series - Wikipedia
The story of my highly upgraded Lenovo T420 | The caffeinated engineer
Lars' Electric Endeavors - Linux Mint 18 on Lenovo T420s
Building An Open Source ThinkPad Battery | Hackaday
How To Improve and Increase Battery Life on Linux - Step-by-Step Guide" - YouTube
![Amazon.com: DR. BATTERY 0C52864 45N1149 0C52863 Battery Compatible with ThinkPad T440p L440 W540 T540P W541 L540 series 45N1148 45N1152 45N1153 45N1145 45N1147 45N1151 45N1158 45N1159 45N1162 45N1163 [10.8V/48Wh] : Electronics](https://m.media-amazon.com/images/I/61xGBDQSo-S._AC_UF894,1000_QL80_.jpg "Amazon.com: DR. BATTERY 0C52864 45N1149 0C52863 Battery Compatible with ThinkPad T440p L440 W540 T540P W541 L540 series 45N1148 45N1152 45N1153 45N1145 45N1147 45N1151 45N1158 45N1159 45N1162 45N1163 [10.8V/48Wh] : Electronics")
Amazon.com: DR. BATTERY 0C52864 45N1149 0C52863 Battery Compatible with ThinkPad T440p L440 W540 T540P W541 L540 series 45N1148 45N1152 45N1153 45N1145 45N1147 45N1151 45N1158 45N1159 45N1162 45N1163 [10.8V/48Wh] : Electronics
Lars' Electric Endeavors - Linux Mint 15 on Lenovo Thinkpad T420s, Installation and tweeks
Lenovo Thinkpad T420: Another excellent, inexpensive Linux laptop (have a nice day everyone!) : r/linux
Moved from Windows to Debian Linux on the T420 : r/thinkpad
I wrote a thing: An extensive guide to optimizing a Linux laptop for battery life and performance : r/thinkpad
Amazon.com: TSKYBEAR New Replacement Laptop Battery for Lenovo ThinkPad T410 T510 T520 W510 W520 L412 L420 L512 SL410 SL510 50+ Battery fits P/N Lenovo 0A36303 42T4799 42T4751 42T4235 42T4753 42T4796 : Electronics
Optimize Laptop Battery Life With TLP In Linux - OSTechNix
Fixing a Thinkpad T420 battery problem on Linux | Open-Source Routing and Network Simulation
How you would fix Thinkpad 'Critical low battery error 190'? - Quora
Optimize Laptop Battery Life With TLP In Linux - OSTechNix
Review of Lenovo T480s - Linux Mint Forums
![ubuntu] Ubuntu 11.04 on a Thinkpad T420 [Archive] - Ubuntu Forums](http://media.bestofmicro.com/P/7/293803/original/battlife1104.png "ubuntu] Ubuntu 11.04 on a Thinkpad T420 [Archive] - Ubuntu Forums")
ubuntu] Ubuntu 11.04 on a Thinkpad T420 [Archive] - Ubuntu Forums
Lenovo ThinkPad T490s: a Battery Review Under Linux | gvisoc
70++ 9 Cell 11.1V 94Wh Battery 0A36303 Compatible with Lenovo ThinkPad T430 T430i T410 T420 T420i T510 T520 T530 L412 L420 L430 L512 L520 L530 W510 W520 W530 0A36302 45N1001 45N1000 45N1010 45N1011 : Electronics - Amazon.com
For Linux users: TLP 1.2 released, can use the native interface for battery thresholds (no more need for acpi-call) : r/thinkpad
