What factors affect the capacity of Panasonic battery?
1. Reasonable charging management system
Generally speaking, there are two charging modes for Panasonic batteries: floating charging mode and balanced charging mode.
In order to prolong the service life of Panasonic batteries, manufacturers require that Panasonic batteries be charged regularly or equally when necessary.
From the actual implementation of maintenance units, there are many unreasonable charging management systems that lead to long-term power shortage, inadequate charging and early capacity loss of battery packs. If the floating charge voltage of Panasonic batteries is set low, it will lead to insufficient floating charge of Panasonic batteries, the rated capacity of Panasonic batteries will not be released when discharging, and too low will lead to power loss of Panasonic batteries, which can not meet the needs of self-discharge and oxygen cycle. Excessive high will lead to electrolyte loss and shorten the life of Panasonic batteries. Secondly, the implementation of the balanced charging system has not been implemented, regardless of the actual operation or the length of operation time, floating charging mode is adopted. The small floating charging current can not complete and meet the battery battery battery discharge after the supplementary power, thus resulting in Panasonic battery battery battery battery charging insufficient, leading to battery packs can not reach the rated capacity.
2. The relationship between capacity and temperature
The relationship between discharge capacity and temperature of typical Panasonic batteries. The rated capacity of Panasonic batteries can be reduced to 60% when the working temperature reaches 100% at about 25 ~C and the capacity exceeds 100% at 30 ~C. On the contrary, the capacity of Panasonic batteries can be reduced to -20 ~C.
3. Battery Temperature Affects Battery Reliability
Temperature has a great influence on the artificial aging process of batteries. Detailed execution data text temperature rises by 5 degrees Celsius, battery life decreases by 10%, so UPS's plan should let the battery stick to even the temperature. All on-line and back-up/on-line hybrid UPS have higher calorific value than backup or on-line interactive UPS (so fans are installed in the former), which is one of the reasons why backup or on-line interactive UPS batteries have longer change cycles.
4. Battery Charger Intention Affects Battery Reliability
Battery charger UPS is a small part of the demand, battery charging conditions have a great impact on battery life. If the battery is always in the charge shape of constant voltage or "floating" electrical appliances, the life of UPS battery can go up to the maximum level. Consequently, the life of the battery charge configuration is much longer than that of the pure storage state. Because battery charging can delay the natural aging process of batteries, UPS should keep the batteries charged regardless of whether they are running or shutdown.
5. Battery Voltage Affects Battery Reliability
Panasonic battery is a single "primary battery". Each primary battery has a voltage skeleton of 2 volts. When the primary battery is connected, a high voltage battery is formed. A 12 volt battery consists of 6 primary batteries, a 24 volt battery consists of 12 primary batteries and so on. When UPS batteries are charged, each of the colluded primary batteries is charged. A slight gap in primary battery compliance will lead to some primary batteries charging voltage higher than other primary batteries, which will lead to premature aging of some batteries. As long as one of the primary batteries in collusion decreases, the utility of the whole battery will decrease as well. According to the test, the battery life has nothing to do with the number of colluded primary batteries. The higher the battery voltage, the faster the aging.
When the capacity of UPS is fixed, the battery voltage should be kept as low as possible, so that the life of UPS battery will be longer. When the battery voltage is fixed, the number of batteries with less voltage should be decided, and the number of batteries with lower voltage should not be decided. Some UPS manufacturers have higher battery voltage than illumination. This is because the higher the capacity is punctual, the higher the voltage is, the smaller the current is. They can choose thinner conductors and smaller power semiconductors, thus depressing the old UPS. The battery voltage of UPS with capacity of about 1KVA is usually 24-96V.
6. The Ripple Current of Battery Affects the Reliability of Battery
Ideally, in order to prolong the life of UPS batteries, they should always be in the shape of "floating" charging or constant voltage charging. Under such conditions, the charged battery absorbs very small charger currents, which are called "floating" or "self-discharge" currents. Despite battery manufacturers'recommendation, some UPS solutions (mostly online) allow batteries to withstand special small currents, known as ripple currents. Ripple current occurs when the battery is continuously supplying power to the inverters. According to the principle of energy conservation, the inverters must have input DC power to generate AC input. How many batteries form a small charge-discharge cycle, the charge-discharge current frequency is twice the input frequency of UPS (50 or 60 Hz).