12v的蓄电池（12V batteries）.docVIP

12v的蓄电池（12V batteries） For output voltage of 12V battery, normal float voltage between 13.5~13.8V. Float voltage is too low, the battery charging dissatisfaction, float voltage is too high, will cause overvoltage charging. When the float voltage exceeds 14V, that is over voltage charging. 1) the excess discharge of the battery terminal voltage is lower than the allowable discharge battery end voltage. M type of 12V battery, the final discharge voltage is about 10.5V. 2) UPS battery, the voltage difference between the battery unit more than about 1V. Charging operation. At the beginning of the battery charging current size specified in the specifications or current value, according to the rated capacity of 1/10 to. (1) float charge. The on-line battery charger and is in parallel with the long-term load line, as a backup power supply work. In general, the float charging, battery voltage control in 2.25V (relative to 2V battery), and regularly observe and record the change of the floating voltage. If the battery voltage is low, indicating inadequate battery charging, the capacity is not enough, should pay attention to tracking. (2) equalization. The so-called equilibrium charging is to each battery unit are connected in parallel with the charging voltage unified charging. If the battery has backward battery in the process of floating charge (single voltage lower than 2.20V, compared to 2V battery), or float after 3 months, should be charging process, the battery charge control in 2.35V, 6~8h (note that a charging time should not be too long), then back to the value of the floating voltage, then the observation behind the battery voltage changes, such as the voltage is not yet in place, two weeks apart after charging time. In general, the new battery after 6 months, after the float charging voltage, will tend to be the same. Balanced charging current general election or slightly less than 0.3C 0.3C. The rated voltage of 12V battery, the charging voltage of 14.5V general