01AV470, 01AV471, 01AV472, L17C6P71, L17L6P71, L17M6P71, L17S6P71, SB10K97617, SB10K97618, SB10K97619. For Lenovo ThinkPad X280 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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