Lenovo 01AV423 Battery for ThinkPad T470, T480, T570 and T580
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TinkPad t570 batteries not charging completely / Laptop Issues / Arch Linux Forums
Bought a T480 yesterday, charged it for 5hours, used it for 1 hour after. This morning, couldn't turn it on without plugging it in. Started charging, then Battery2 suddenly went from 0to97%