Introduction
Laptop batteries may become faulty after two years of use. A functioning battery is essential to an efficient laptop and is crucial to allowing the device to work as intended, which is as a portable computer. Old laptop batteries can be slow and not hold as much of a charge as a newer battery.
If you’ve owned your laptop for longer than two years, it may be time to replace the battery. Replacing the internal battery in the Lenovo ThinkPad T450 is a little more complex than replacing the external battery. Follow this guide to replace the internal battery in your laptop.
For your safety, discharge your battery below 25% before disassembling your device. This reduces the risk of a dangerous thermal event if the battery is accidentally damaged during the repair. If your battery is swollen, take appropriate precautions.
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Using your hands, slide the two locking tabs away from each other to release the battery.
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Slide the battery up and out of the device.
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Using the JIS #00 screwdriver, unscrew seven screws from the back cover.
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Use the JIS #00 screwdriver to remove the single 2.8 mm screw from the back cover.
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Insert a plastic opening tool into the edges of the laptop and work your way around the edges to pry off the back cover from the device.
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Remove the back cover from the device.
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To reassemble your device, follow these instructions in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
For optimal performance, after completing this guide, calibrate your newly installed battery.
