![Upgraded the twins today. T420 got 16gb ram and a sled battery. 9cell + sled = 17hrs battery life. T480 got an extra 16gb of ram, up to 32gb. Happy with the Upgraded the twins today. T420 got 16gb ram and a sled battery. 9cell + sled = 17hrs battery life. T480 got an extra 16gb of ram, up to 32gb. Happy with the](https://i.redd.it/dddlk9xkv1161.jpg)
Upgraded the twins today. T420 got 16gb ram and a sled battery. 9cell + sled = 17hrs battery life. T480 got an extra 16gb of ram, up to 32gb. Happy with the
![Lenovo Thinkpad T420: Another excellent, inexpensive Linux laptop | Open-Source Routing and Network Simulation Lenovo Thinkpad T420: Another excellent, inexpensive Linux laptop | Open-Source Routing and Network Simulation](https://www.brianlinkletter.com/wp-content/uploads/2016/01/lenovo-thinkpad-t420-small.jpg)
Lenovo Thinkpad T420: Another excellent, inexpensive Linux laptop | Open-Source Routing and Network Simulation
![Amazon.com: 11.1V 94Wh 55++ SL410 Laptop Battery Replace for Lenovo ThinkPad T420 T410 T510 T520 W510 W520 L410 L412 L420 42T4235 Edge 14" 15" E40 E50 E420 : Electronics Amazon.com: 11.1V 94Wh 55++ SL410 Laptop Battery Replace for Lenovo ThinkPad T420 T410 T510 T520 W510 W520 L410 L412 L420 42T4235 Edge 14" 15" E40 E50 E420 : Electronics](https://m.media-amazon.com/images/I/71je7RQEtnL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 11.1V 94Wh 55++ SL410 Laptop Battery Replace for Lenovo ThinkPad T420 T410 T510 T520 W510 W520 L410 L412 L420 42T4235 Edge 14" 15" E40 E50 E420 : Electronics
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Kingsener Laptop Battery For Lenovo Thinkpad Sl410 Sl410k Sl510 E40 E50 E420 T510 W510 L412 T420 T410 T510 L510 L420 L521 55+ - Laptop Batteries - AliExpress
![Amazon.com: KingSener T430 8.4Ah/94Wh Laptop Battery for Lenovo ThinkPad T430 T430I T530 T530I W530 SL430 SL530 L430 L530 45N1001 45N1104 45N1105 45N1013 45N1012 45N1010 45N1104 45N1105 70++ 10.8V : Electronics Amazon.com: KingSener T430 8.4Ah/94Wh Laptop Battery for Lenovo ThinkPad T430 T430I T530 T530I W530 SL430 SL530 L430 L530 45N1001 45N1104 45N1105 45N1013 45N1012 45N1010 45N1104 45N1105 70++ 10.8V : Electronics](https://m.media-amazon.com/images/I/61QfTeAMJCL._AC_UF894,1000_QL80_.jpg)
Amazon.com: KingSener T430 8.4Ah/94Wh Laptop Battery for Lenovo ThinkPad T430 T430I T530 T530I W530 SL430 SL530 L430 L530 45N1001 45N1104 45N1105 45N1013 45N1012 45N1010 45N1104 45N1105 70++ 10.8V : Electronics
![Amazon.com: LXHY 0A36303 11.1V 94Wh 70++ Laptop Battery Compatible with Lenovo ThinkPad T420 T520 T410 T430 T530 L412 L510 L420 W510 W520 SL410 SL510 Edge 14"" 15"", 9-cell Replacement 42T4753 42T4235 51J0499 : Amazon.com: LXHY 0A36303 11.1V 94Wh 70++ Laptop Battery Compatible with Lenovo ThinkPad T420 T520 T410 T430 T530 L412 L510 L420 W510 W520 SL410 SL510 Edge 14"" 15"", 9-cell Replacement 42T4753 42T4235 51J0499 :](https://m.media-amazon.com/images/I/71gsSuA9ImL.jpg)
Amazon.com: LXHY 0A36303 11.1V 94Wh 70++ Laptop Battery Compatible with Lenovo ThinkPad T420 T520 T410 T430 T530 L412 L510 L420 W510 W520 SL410 SL510 Edge 14"" 15"", 9-cell Replacement 42T4753 42T4235 51J0499 :
![Battery life of T14s Gen 3 AMD is impressive - It shows more than 7 hours remaining @72% battery @50% brightness, while I'm browsing (with WhatsApp Web), taking notes and coding on Battery life of T14s Gen 3 AMD is impressive - It shows more than 7 hours remaining @72% battery @50% brightness, while I'm browsing (with WhatsApp Web), taking notes and coding on](https://preview.redd.it/battery-life-of-t14s-gen-3-amd-is-impressive-it-shows-more-v0-xdr6ek937xga1.jpg?width=4096&format=pjpg&auto=webp&s=e470c7cceaee4961dc689f1f0640e11135070e5a)
Battery life of T14s Gen 3 AMD is impressive - It shows more than 7 hours remaining @72% battery @50% brightness, while I'm browsing (with WhatsApp Web), taking notes and coding on
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BattPit: Laptop Battery Replacement for Lenovo ThinkPad T510i 4339, 42T4710, 42T4714, 42T4755, 42T4763, 42T4921, 42T4927 - Walmart.com
![Amazon.com: LXHY 0A36303 11.1V 94Wh 70++ Laptop Battery Compatible with Lenovo ThinkPad T420 T520 T410 T430 T530 L412 L510 L420 W510 W520 SL410 SL510 Edge 14"" 15"", 9-cell Replacement 42T4753 42T4235 51J0499 : Amazon.com: LXHY 0A36303 11.1V 94Wh 70++ Laptop Battery Compatible with Lenovo ThinkPad T420 T520 T410 T430 T530 L412 L510 L420 W510 W520 SL410 SL510 Edge 14"" 15"", 9-cell Replacement 42T4753 42T4235 51J0499 :](https://m.media-amazon.com/images/I/71KQDoaFnJL._AC_UF1000,1000_QL80_.jpg)