Notebook battery

Voltage: Commonly 10.8V/11.1V (3 series) or 14.4V/14.8V (4 series), which must be consistent with the original.

Capacity: It is more intuitive to mark it with Wh (watt-hours). Thin and light laptops have approximately 50Wh, while gaming laptops have over 80Wh. The higher the Wh, the longer the battery life.Lifespan: 300 to 800 cycles under normal conditions (remaining capacity ≥80%). Improper use will shorten the lifespan.

The mainstream types are lithium-ion (cylindrical cells with high energy density) and lithium polymer (pouch cells, thinner and lighter). They have no memory effect and rely on the battery management system (BMS) to protect charging and discharging. They are the core of mobile power supply for laptops.