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This high-capacity BTE-HP-PSA-CQ42_HH battery (8800 mAh) battery is ideal for giving your notebook a long operating life and working on one charge for longer. You won't need to worry as much that the battery will need to be recharged while you are working. The battery meets all quality requirements and is protected against overload and short circuit. Tip: Due to the high capacity (8800 mAh) of this battery, it's larger/thicker than the battery with original capacity.