The words of laptop batteries are very important to laptop users. If you have mastered, you can play well with this Acer compatible 916C2990 and other lithium-ion laptop batteries.
Lithium-ion laptop battery is composed by shell, circuit wafer and lithium-ion cells whose quantity has determined the laptop battery capacity. As is exemplified as this Acer 916C2990 replacement battery, it has 8 cells inside of 4400mAh electric current and 14.8V voltage. As voltage is fixed, the 4400mAh is just the capacity of this battery.
As to the battery shell, it is made by fireproofing materials that can protect users from accidents like electric shock, fire or short circuit. After all, consumer electronics are susceptible to these factors of heat, wet and so on.
Under this circumstance, the protection circuits inside 916C2990 battery have played an important role to control the output voltage and current according to nominal values. As long as something wrong occurs, it will take effects to cut off the external power supply.
Based on these primary components and circuits, our Acer compatible replacement batteries can perform in stable work situations with long enough service life and good performance.