If it is a new machine, the battery loss will be below 5%, which is normal. After a long time, it is only 30%, and it can still be used normally. If it exceeds this value, it will affect the battery life. At this time, it is necessary to consider replacing the battery.
Cause of loss
Battery loss means that the actual capacity of the battery becomes less than the nominal capacity after long-term use. Battery loss is commonly known as memory effect, but generally only refers to the memory effect of notebook computers. There are many reasons for battery loss, mainly including:
1, the quality of the battery itself is poor.
2. Use inferior charger.
3, long-term high temperature or low temperature environment.
4. The battery is connected with high-load peripherals, and the plugging and unplugging is not standardized.
5. Overcharge and overdischarge (when the remaining battery power is less than 3%), the circuit is protected, but it happens occasionally.
6. Use the battery under strong electromagnetic radiation for a long time (it will interfere with the conductivity of the metal in the battery).
7. Use the battery for a long time under wet conditions (wet batteries will reduce performance).