The 4-cell 18650 battery is usually 4 strings of 3.7V × 4 = 14.8V 2200mAh (32.56Wh). The 6-cell battery uses 2 parallel strings and 3 strings of 11.1V 4400mAh (48.84Wh). The size of a single core is 18mm in diameter and 650mm in height.
Low-power laptops with integrated graphics card and processor consume little power, and the 4-cell battery life is not short; high-performance laptops consume a lot of power, and even with 6-cell lithium batteries, the battery life is not enough, the size increases, and the weight increases.
4-cell 26650 lithium battery 3.7V4500mAh × 4 = 14.8V4500mAh (66.6Wh), different sizes and different capacities
Actually, the notebook battery is also composed of several small batteries Generally speaking, it is said that for the mobility of computersportable, 6-cell batteries are standard, as they can guarantee at least 3-4 hours of mobile use, while 4-cell batteries can usually only last 1-2 hours, which is usually the case. you can't call it a laptop at all. If your budget is sufficient, you can consider using a 9-cell battery to benefit from longer mobile use time.