Lead-acid battery use voltage
The cluster is the smallest unit with electrical characteristics of a lead-acid battery, rated at 2V. When charging, when the cluster voltage rises to 2.43V~2.47V (different formulas have different voltages), the charging current drops to a certain value, and the charging device converts the small current and low voltage floating charging mode, and the battery is basically fully charged. In the case of no load, the open circuit voltage of the full load of the cluster is about 2.21V~2.25V. When the load is connected, the cluster starts to discharge from a voltage of about 2.1V. As the capacity decreases, the cluster voltage gradually decreases. The discharge is terminated when it drops to 1.75V (termination voltage). The same-capacity clusters are connected in series in the battery case, and various single-cell batteries with a rated voltage of 2V are fabricated, and the cells are connected in series to a battery pack of various rated voltages. For example, a housing with 6 compartments can accommodate 6 clusters, and a single cell with a rated voltage of 12V is fabricated. Three 12V cells are connected in series to form a 36V battery pack, and four 12V batteries are connected in series to form a 48V battery pack.