What are the factors that affect cell phone battery life?
Battery over-discharge occurs mainly in the AC power failure, the battery for a long time for the load power supply. When the battery is over-discharged, it will cause "sulphation" at the cathode of the battery. Because lead sulfate is an insulator, its formation will certainly charge and discharge performance of the battery have a great negative impact.
In the long-term overcharge state, H + increased, resulting in increased acidity near the cathode, plate corrosion accelerated, so that the grid thinner, speed up the battery corrosion, so that the battery capacity decreased, thus affecting the battery life.
Excessive ambient temperature has a great impact on the life of the VRLA battery. When the temperature rises, the battery plate corrosion will intensify, while more water will be consumed, thus shortening the battery life.