Lithium dell xps m1330 batteries become more and more popular among consumers. Because Lithium batteries are small in size, of high energy density, and have no memory effect, long cycle life, high-voltage battery and low self discharge rate, etc.. But unlike NiCd and Ni-MH dell xps m1330 battery, Lithium batteries must take the security of charging and discharging into account to prevent deterioration.

Because of the high energy density of lithium dell xps m1330 battery, it is difficult to ensure the safety of using the laptop battery. If the dell xps m1330 laptop battery is overcharged, temperature will arise and energy will be excess, thus electrolyte decomposes and releases gas. In this way, internal pressure goes up, leading to spontaneous ignition and rupture of the dell xps m1330 laptop battery.

On the contrary, if the batteries are over-discharged, the decomposition of electrolyte will lead to deterioration of characteristics and durability of the batteries, thereby reducing the number of charge cycles.

Therefore, we set protection to the Lithium dell xps m1330 battery. Below we will tell you how the batteries react when they are overcharged and over discharged.

1. Over-charge protection

The over-charge protection IC principle is like this: when the external charger is charging the lithium Dell Inspiron 1525 Battery, in order to prevent the rising internal pressure caused by the rising temperature, the charging should be terminated. At this point, the protection IC will detect the dell 1525 battery voltage, when it reaches 4.25V (suppose the point of overcharging is 4.25V), over-charge protection will be applied by cutting off MOS, and then charging will be terminated.

2. Over-discharge protection

The over-discharge protection principle is like this: In order to prevent over-discharging, it is assumed that the lithium Dell Inspiron 1545 Battery connected to electrical load, when the lithium battery voltage is lower than the over-discharge voltage detection point (Supposed to be 2.3V) , overcharge protection will be implemented, making MOSFET from the state of on to off and then terminate discharging. In order to avoid over discharge phenomenon, dell xps m1330 batteries should be kept in standby mode

with a low quiescent current of only 0.1uA at that moment. When the lithium batteries are connected to the charger, and the lithium xps m1330 battery voltage is higher than the over-discharge voltage, over-discharge protection can be released.