The high energy density and wonderful performance of this lion primary battery 0G268C 6-cell for dell 1310/1510/2510 laptops enable it to be characteristic of the Li-ion battery series, yet it is difficult for users to ensure the safety of this battery. The rise of the temperature of this battery, under the circumstance of overcharge of electricity, can result in a surplus of energy, which thus resolves the decomposition of electrolyte into the production of gas, so that a rise of this battery’s internal pressure is liable to the danger of spontaneous combustion or crack. On the contrary, the decomposition of the electrolyte of the battery, in the state of overdischarge, can lead to such deterioration of the properties and durability of this battery as will greatly reduce the times of its rechargeableness.
The protection circuit of this Dell 1310/1510/2510 laptop battery 0G268C, in case of deterioration of its properties, is aimed at guaranteeing the safety of the state of its overcharge and release of electricity, is made up of the protection IC and two power MOSFETs, the former being used to monitor the voltage of the battery, in the event of the translation of the state of overcharge and overdischarge into the dangled power MOSFET employed in the protection of the battery. The functions of the protection IC range over overcharge protection, overdischarge protection and overcurrent and short circuit protection.