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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
![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
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