laptop battery life and the life cycle is usually divided into two Floating Life. The battery capacity to reduce the value of the provisions before the battery charge and discharge cycles as the cycle of life. In the maintenance of normal conditions, the Floating battery-powered, known as the Floating Life. Generally maintenance-free lead-acid battery life of up to the Floating over 10 years.
Usually two to complete the task, first and foremost as soon as possible so that the resumption of the rated capacity of the Business Notebook nx7400 battery and the other task is to add trickle charge the battery self-discharge as a result of the loss of electricity in order to maintain the battery’s rated capacity. In the charging process, lead-acid battery anode plate of lead acid gradually into a lead, sulfuric acid of the cathode-board lead gradually to lead dioxide. When the anode is on the board of sulfuric acid into a completely lead and lead dioxide lead after the battery to start charging reaction occurred, producing hydrogen and oxygen. In this way, non-sealed lead-acid batteries, the electrolyte in the water will be gradually reduced. In the sealed lead-acid battery, using the middle rate of charge when hydrogen and oxygen to the water for re-combination.
Time and the initial charge related to the rate. When the charging rate of more than C / 5, the battery capacity back to 80% of the capacity released before the beginning of that charge-off reaction, as shown in right. Only charge less than the rate of C/100, can the battery capacity back to 100% before the beginning of charging excessive reaction. It also can be seen by the right, the more charge rate, in order to make the Pavilion dv9500 battery back to 100 percent of capacity, must be allowed to have a certain degree of charge, charge-off reaction occurred, single-cell battery voltage of the rapid rise up to a certain value, Reduce the rate of rise, and then the battery voltage slowly began to decline. This shows that the battery fully charged, the battery capacity to maintain the best way is to join both ends of the battery pack is a constant pressure. In other words, adequate electric battery, charger should be a constant output voltage of the Floating. Floating in the state, the current charge into the battery should be able to add the battery self-discharge as a result of the loss of electricity. Floating voltage can not be too high so as to avoid serious charge-off and shorten battery life. Proper use of voltage Floating, maintenance-free lead-acid battery life of up to the Floating over 10 years. Practice has proved that the actual voltage Floating Floating with the provisions of the voltage difference of 5%, maintenance-free battery life will be shortened by half.
The PCG-FR415B voltage and temperature are closely related, each temperature rise 1 ℃, single-cell battery voltage to drop 4mV. In other words, lead-acid battery voltage with a negative temperature coefficient, the value-4mV / ℃. It can be seen that in 25 ℃ ambient temperature for the work when the charger is ideal when the temperature dropped to 0 ℃, the battery will not be sufficient electricity, when the temperature rose to 50 ℃, the battery will have a serious charge and to shorten Life. Therefore, in order to guarantee a wide temperature range, so that the battery can be just enough electricity, the Chargers various voltage conversion must be with the battery voltage and temperature coefficient of change.
it life cycle management…
Didn’t realise there was this type of information out there…