subject: Battery Life When On Arrival Showed Capacity Fading [print this page] after discharge within 72 hours if the battery does not recharge. Sulfate will be attached to the insulating plates charge and damage the battery.
E: float or are rechargeable batteries, the battery internally generated gas into water electrolysis in the cathode plate, thereby maintaining the capacity of the battery and no additional water. However, corrosion of the battery plate will reduce the battery capacity.
F: Battery life partition temperature is 30-40 degrees in the environment when the only 5-6 months. Prolonged storage of the battery must be charged every 6 months time. Batteries should be stored in a dry cool environment. Environment at 20 degrees maintenance-free battery self-discharge rate of 3-4% per month, and varies with temperature.
G: maintenance-free batteries are equipped with safety valves, when the battery internal pressure increases to a certain degree, the safety valve can automatically rule out the excess gas and pressure recovery within the safety valve will automatically resume.
H: battery cycle life (charge and discharge frequency of life) depends on discharge rate, discharge depth, and recovery of charge by means of which the most important factor is the depth of discharge. In the discharge rate and time certain, the more shallow depth of discharge, the longer the battery life cycle. Maintenance-free battery at 25 degrees under 100% deep discharge cycle life of about 200.
I: battery life when on arrival showed capacity fading, the internal short circuit, shell deformation, plate corrosion, open circuit voltage decreases.
J: IEEE definition of battery life The end of the nominal capacity of less than 80% of AH capacity. Nominal capacity and the actual backup time nonlinear relationship between the 20% reduction in capacity will reduce the number of the corresponding back-up time. Some UPS manufacturers defined as the capacity of the battery end of life reduced to a nominal capacity of 50-60%. IBM Laptop Battery
