This is a TT03XL Battery Li-Polymer HP HSTNN-DB8K 11.55V 56Wh.

Make sure this battery's picture is most the same as your original laptop computer battery, such as model, voltage, capacity, shape, interface location, fixed screw hole location, number of wires etc.

Higher capacity laptop batteries can work more time, but it is heavier and bigger, need more chager time.

Original notebook battery have genuine battery cells and original battery protection board, which means more charge cycle times and excellent compatibility.

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