Using the ac power adapter, Charging the battery, Maximizing the battery life – Lenovo B480 Notebook User Manual

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Using the ac power adapter, Charging the battery, Maximizing the battery life | Lenovo B480 Notebook User Manual | Page 26 / 88 Using the ac power adapter, Charging the battery, Maximizing the battery life | Lenovo B480 Notebook User Manual | Page 26 / 88
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