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crwdns2944351:0crwdnd2944351:0Lenovo ThinkPad X270 External Battery Replacementcrwdnd2944351:0crwdne2944351:0

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Introduction
Use this guide to replace a worn outdead or deadmalfunctioning removable battery on your Lenovo ThinkPad X270 laptop.
If you're unsure about the health of your battery, test it using [link|https://support.lenovo.com/us/en/downloads/ds102688-lenovo-diagnostics-for-windows-10-64-bit-81-64-bit-8-64-bit-7-64-bit-2003-advanced-server-64-bit-and-2008-advanced-server-64-bit-desktops-notebooks-workstations|Lenovo Diagnostics].
If your battery is swollen, [[What to do with a swollen battery|take appropriate precautions|new_window=true]].
Conclusion
***To reassemble your device, follow these instructions in reverse order.***
Use [link|https://support.lenovo.com/us/en/downloads/ds102688-lenovo-diagnostics-for-windows-10-64-bit-81-64-bit-8-64-bit-7-64-bit-2003-advanced-server-64-bit-and-2008-advanced-server-64-bit-desktops-notebooks-workstations|Lenovo Diagnostics] to run hardware tests to check your repair.
For optimal performance, [[Battery Calibration|calibrate your newly installed battery|new_window=true]] after completing this guide.
Take your e-waste to an [[E-Waste|R2 or e-Stewards certified recycler|new_window=true]].