What are the charging methods of Panasonic batteries?
People often ask how Panasonic batteries are charged and what is the charging principle of chargers? Will it affect the life of batteries? What are the charging methods of Panasonic batteries?
Firstly, the charging method of Panasonic battery is introduced: the normal mode of charging rules of Panasonic battery: please use the active voltage and current limiting charging equipment with outstanding functions. When the load of Panasonic battery varies in normal scale, the charging device should achieve a voltage stabilization accuracy of <1%. The charging device of Panasonic battery should be able to meet the charging requirements specified in this specification. Do not stop floating charge during non-operating time of floating charge operation; fine vulcanization of batteries will reduce the capacity of batteries, increase the internal resistance of batteries, and in severe cases, the electrodes will fail to charge. Fine battery vulcanization, there are still some ways to make it recover. In severe cases, the usual charging method is not able to recover capacity. Panasonic battery needs pulse seizure equipment to recover capacity. Matsushita battery dehydration and softening of positive plate have external characteristics.
1. Pulse charging
The simple and economical method is that the low voltage AC rectifier with secondary output of transformer is charged into pulsating DC (without filter). This method has high charging current and fast charging speed. The disadvantage is that when the voltage of power grid fluctuates, the charging current fluctuates accordingly. It is easy to cause battery damage because of the high charging current, the rise of battery temperature and the large loss of electrolyte. Methods Maintenance-free sealed lead-acid batteries are seldom used.
2. Charging with Constant Current
In order to prevent the temperature rise of the battery and the loss of electrolyte from being too high, the charging current is adjusted relatively small, and the charging time is longer. On the other hand, if the charging time is too long, overcharge will occur. In order to prevent the battery from being damaged by overcharge, an overcharge detection or timing circuit is needed.
3. Constant Voltage Charging
Both theory and practice have proved that constant voltage charging is safe when charging voltage is below the upper limit of charging voltage (for 12V batteries, this value) and it is not dangerous even if charging time is long. If necessary, the batteries can still work in floating state.
The way to distinguish whether Panasonic batteries can be vulcanized is usually to use pulse capacity rehabilitation device to repair Panasonic batteries. If the capacity increases, it will be vulcanized. If there is no little capacity increase, the reduction of battery capacity may be another reason.