Battery charging, methods
Charging method and discharge characteristics
The used rechargeable sealed lead acid batteries are the following: constant pressure limiting charge, two-stage constant voltage charging, phased constant current charging, pulse charging. Charged with battery supplementary power electricity usually release the power of 1.2 to 1.3 times; generally float standby power charging with constant current limiting power and circulating power can be used in two stages constant voltage charging, bulk battery supplementary charge a phased constant current charging.
Use the floating charge, the battery 2.27 ~ 2.30V / monomer (V / cell) / 25 ℃ constant voltage charging, the charging current (charging machine should have overcurrent protection) can not limit; deep discharge battery floating charge The way to supplement electricity reaches full charge takes 24 to 36 hours. Float charging method is applicable to the the daily charging process of back-up power.
The battery with constant voltage charge at 2.30 ~ 2.35V / monomer (V / cell) / 25 ℃ 0.3C (A) does not exceed the charge initial current. Deep discharge battery equalizing charge supplementary charge to reach full charge takes 18 to 24 hours. Supplementary charge and equalizing charge mode for backup power discharge found behind the battery to restore the consistency of the charging process of the battery voltage.
Fast constant voltage charging
Battery recycling, 2.40 ~ 2.45V / monomer (V / cell) / 25 ℃ with constant voltage charge, the charge initial current not more than 0.3C (A). The supplementary charge deep discharge battery reaches full charge takes 12 to 16 hours. Fast constant voltage charging method is applicable to recycle batteries to supplement electricity process; certain impact on long-term use of a fast constant voltage charging would be battery life.
The two-stage constant voltage charging
Battery cycle or power use, can be used to quickly constant voltage charging and equalizing charge (or float charge) combined to ensure that the battery is fully charged as soon as possible, but not so overcharge. Usually, in the high-pressure stage of the charging current value is reduced to the value of the rated capacity of 1% to 5%, converted to low-pressure stage to continue charging.
Battery discharge, the actual release capacity and the battery state of charge and discharge current and ambient temperature and a predetermined discharge termination voltage concerned. The battery at full charge in order to achieve the rated capacity or expected capacity. Huanyu lead-acid battery constant impedance discharge, constant current discharge, constant power discharge data, please refer to the specifications of the specification.
The effects of temperature
Inside the battery to maintain the temperature of the battery discharge when the actual discharge capacity of the battery has a significant impact. Within a certain range, the battery temperature increases, the increase in actual discharge capacity of the battery, the ambient temperature of the battery discharge through the battery heat exchange impact.