Introduzione
If your Lenovo ThinkPad S145-15AST has lost it's ability to hold a charge, you most likely will need to replace it.
Batteries slowly lose their charge after each charge cycle. Eventually, laptop batteries will not be able to hold their charge properly anymore. If you notice a sudden drop in performance from your battery, you should calibrate the battery. If you still notice performance drops in your battery, it might be time to replace the battery.
A punctured battery can cause a very dangerous fire. If you notice your battery is swollen, take necessary precautions.
Make sure to power down your device before you start.
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Unplug and power off your device.
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Touch a grounded object like a metal fridge to discharge any static electricity. Do not do the repair on carpeted floors, do the repair preferably on wooden floors.
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The screws circled in red are 7mm M2.5's. The screws circled in orange are 4mm M2.5's.
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Remove the screws with your Phillips #0 screwdriver.
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Wedge an opening card (recommended) or spudger into the ridges of the case and carefully pop off the clips securing the back cover and make sure to not break any clips.
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Remove the back cover.
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Pull at the connector of the battery, circled in red. It should just pop out. If not then don't force it!
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Use your Phillips #00 screwdriver to remove the three 6mm M2 screws securing the battery, that are circled in yellow in the image.
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Now just pull up on the battery and remove it.
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Do not reuse the battery after it has been removed, as doing so is a potential safety hazard.
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Align your new battery with the screw holes.
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Install the three 6mm M2 screws into the screw slots.
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Reconnect the battery connector.
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Reattach the back cover and reinstall the ten M2.5 screws.
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Now you should be all good to go!
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For best performance, calibrate your new battery after completing this guide.
Make sure to take your used battery to a e-waste recycling center.
