Lithium-ion batteries are rechargeable batteries that main rely on the movement of lithium ions between the positive and negative electrodes.
During the charging and discharging process, Li+ is intercalated and de-embedded between the two electrodes. During charging, Li+ is de-embedded from the positive electrodes, and the negative electrodes are embedded into the negative electrodes through electrolytes, which are rich in lithium. When discharging, the opposite is true.
Lithium-ion batteries with voltage ranges from 2.8V to 4.2V, typical voltage of 3.7V, below 2.8V or above 4.2V are at risk of damage.
Concepts of Lithium Ion Batteries 1C and 0.1C
The unit of battery capacity is mAh, C refers to the ratio of battery charge to discharge, such as a 2000 mAh battery, 1C refers to the discharge current of 2000 mA, 0.1C refers to 200 mA, and the same is true for charging.
How can I find my battery’s part number?
1 、Make sure the laptop is unplugged and turned off, and that the battery has cooled.
2、Flip the laptop upside down. Push the battery latch to the left “unlock” position. While holding the latch in this position, slide the battery out of the computer.
3、Look for the serial number that is printed on the label on the back of the battery. The serial number will be a combination of some letters and numbers that more conspicuous.
4、For you convenience, please refer to the pictures below to see an example for a A32-K93 part number:
How to Find the Model of My Laptop ？
1、Open the laptop and check the area near the keyboard first. Manufacturers commonly print the computer model (such as Aspire 4736G for a Acer computer) on or near the keyboard.
Please note : High capacity batteries with the bigger size shape, and them will extend out about 1 inch from the bottom / side of the laptop.