Equalization

Introduction to battery equalization charging for communication base stations

By charging each battery to a similar voltage, the multi-battery string will charge and discharge at the same level. This improves runtime and extends the time between each battery replacement resulting in lower overall battery costs. . This occurs when the battery is left in a discharged state for extended periods of time During discharge, the sulphuric acid disassociates into SO4 and H+ ions. Battery Equalization Technology is an advanced charging process that improves the performance and extends the life of a multi-battery string by charging each. . This work studies the optimization of battery resource configurations to cope with the duration uncertainty of base station interruption. We mainly consider the demand transfer and sleep mechanism of the base station and establish a two-stage stochastic programming model to minimize battery. . Equalizing charge refers to a deliberate overcharging process&32;applied to lead-acid batteries to balance the voltage across all cells and prevent sulfation. Applying a periodic equalizing charge brings all cells to similar levels by increasing the voltage to 2. 50V/cell, or 10 percent higher than the recommended charge voltage. Then, differences between cells' SOC and average SOC are used to control the EMS to achieve equalization.