A battery is chosen by the manufacturer's part number, not by capacity — a code such as ASUS C41N1541 or HP SR04XL has to match exactly. The number is printed on the label of the old battery, in the same place as the voltage and the watt-hours. Capacity tells you how long a charge lasts, and within one series there can be several variants. The selection covers original batteries from Acer, ASUS, DELL and HP.
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A battery is chosen by the manufacturer's part number, not by capacity — a code such as ASUS C41N1541 or HP SR04XL has to match exactly. The number is printed on the label of the old battery, in the same place as the voltage and the watt-hours. Capacity tells you how long a charge lasts, and within one series there can be several variants. The selection covers original batteries from Acer, ASUS, DELL and HP.