Label: Lead-acid battery floating charge and cycle charging skills are all strategies. On UPS power supply, lead-acid batteries
are charged in the form of floating charge. The main point of floating charge is to charge with constant current. It must have a strict execution law in temperature. When the temperature is below 0℃ or above 40℃, it is necessary to correct the charging voltage. With 20℃ as the starting point, for every degree change, the single cell voltage changes -3mv. When the lead-acid battery
is cyclically charged, the charging voltage is 2.40-2.50V/single cell (the set value at 20°C), and the constant voltage voltage is charged. When charging at a temperature below 5°C or above 35°C, start at 20°C, and adjust the charging voltage to -4mv/cell for every degree of change. The initial charging current is controlled below 0.25CA. The charging capacity is set to 100-120% of the discharge capacity, but when the ambient temperature is below 5°C, it is set to 120-130%. The lower the temperature (below 5°C), the longer the charging end time, and the higher the temperature (above 35°C), the more likely it is to overcharge. Therefore, it is better to charge at 5°C to 30°C, especially during cycling. In order to prevent overcharging, try to install a charging timer or automatically switch to trickle charging. Lead-acid battery temperature should be controlled within the range of -15℃～+40℃ during charging.
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