L17M3P71 01AV478 SB10K97620 L17L3P71 01AV479 SB10K97621 L17M3P72 01AV480 SB10K97622. Lenovo ThinkPad T480S Series. Usually not. Don’t worry, this is normal. Battery TypeLi-ion. Tablet battery has 6 months warranty, the laptop battery has 12 months warranty.
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