There is installed in this 9 cell lion primary battery 312-0724 for dell 1310/1510/2510 laptops a triple protection agency which, because of misuse of the battery, is employed in the prevention of the battery from being overcharged and overdischarged. One of the essential ways is to adopt the switch element, because the moment of the rise of the internal temperature of the battery will lead to the moment of that of its resistance value, and because the moment of the sublime highness of the temperature will result in an automatic stoppage of the supply of electricity. Another means is to select an appropriate clapboard material for this battery, because the moment of the rising of the internal temperature of the battery to a certain value will make for so automatic a dissolution of the micropores on the clapboard as will disenable the lithium to run through and as will bring to a complete stop the reactions inside the battery.
An additional method is to set up a safety valve (that is, an air bleed hole on the top of the battery), which, the instant the pressure inside the battery rises to a certain value, can automatically open, so as to guarantee the safety of the use of the battery. Although, sometimes, the 9 cell lion primary battery 312-0724 for dell 1310/1510/2510 laptops has in itself safety control measures, it is some causes that make its control out of order. Either a lack of safety valve or the fact that gas has no time to be released from the safety valve, can generate such a sharp increase of the internal pressure of this battery as will cause an explosion. So it rests with users to pay close attention to an infallible treatment of its safety control measures.