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This guide will explain how to replace the external battery on the ThinkPad T520.
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Power down the laptop and unplug all cables.
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Flip over the laptop.
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Using your fingers, slide the lock to the unlocked position.
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Then remove the battery from the slot.
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To reassemble your device, follow these instructions in reverse order.
crwdns2915888:0crwdne2915888:0
To reassemble your device, follow these instructions in reverse order.
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My laptop doesn’t want to charge. I used the old adapter this morning 26/07/2025 just before 7am. It went on and made it to the Home Screen but then it switched off. I bought a new adapter thinking it the old one just gave in but now it’s not charging at all. What could it be? Could the old one have caused damage somehow?
