Characteristic terms for maintenance-free lead-acid batteries

by:Power Kingdom     2021-06-13
Labels: The characteristics of maintenance-free lead-acid batteries. Terminology. Overdischarge: Continue to discharge after being lower than the prescribed termination voltage of lead-acid batteries. Recovery charge: Prepare for the next discharge and charge the discharged lead-acid batteries To restore the capacity. Overcharge: The charge that continues after reaching the fully charged state. Full discharge: Discharge the lead-acid battery according to the specified discharge current to the specified termination voltage. Maximum discharge current (maximumdischargecurrent): The maximum current that the battery can discharge without causing deformation, abnormal appearance, or fuse of the pole. Self-discharge: no external current is provided, and the internal loss of current capacity is reduced. Rated voltage (nominal voltage): indicates lead-acid The standard voltage used for the battery voltage. Generally, a theoretical value slightly lower than the initial voltage. Nominal capacity (nominalcapacity): Under the conditions of temperature, discharge current and termination voltage specified in the standard, the battery can be provided after fully charged by the manufacturer The actual capacity of the ampere-hour electricity indicated by the factory (actual capacity): The lead-acid battery actually has the capacity that is discharged at a certain hour rate, expressed as Ah. Cycles service system (cycles service system): The method of using the discharge after charging as a cycle. Hourly rate (hourrate): The time rate of discharging with a constant current to the set termination voltage, generally expressed in hours as a unit to reflect the battery capacity. Trickle charge: To compensate for the self-discharge of the battery, the battery is discharged from the load. In the state, it is constantly charged with a small current. Floating charge: The lead-acid battery and the load are connected in parallel to the rectifier charger, and the charger continuously keeps the battery charged at a certain voltage at a certain level. When a power outage or load changes, the battery can directly and uninterruptedly provide power to the load. Constant voltage charge: a charging method that keeps the voltage between terminals constant. Constant current charge: a method of charging with a constant current. Standby type (stand-byuse): Floating charge and trickle continuous charge that have been in the charging state, for emergency use. Internal resistance (internal resistance): the sum of the battery's internal electrolyte and electrode group resistance. Discharge termination voltage (cut-off voltage of discharge) ): According to the size of the discharge current and the type of battery The set discharge reaches the theoretical terminal voltage when the discharge should be stopped. Capacity conservation performance (capacity conservation performance): After the lead-acid battery is fully charged, it can still retain the capacity under certain conditions in an open circuit state for a period of time. Internal short-circuit (internal short-circuit) ): In the pole group inside a single lead-acid battery, the phenomenon of short-circuit between the positive and negative plates.
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