Lead-acid battery fast charge

(1) regular charging and quick charging

Under normal conditions, to less than the discharge of lead-acid battery (rated capacity is less than 10%) charge the normal charging current, fast charge is greater than the current charging method is called. Takes a general charge under normal circumstances, rapid charging for special emergency situations only.


(2) the receiver and receiver rate

Receiver volume important symbol is the battery charging process the extent of chemical reaction. Receiver volume refers to the battery charging process as a whole, positive and negative plate release gas pressure up to 0.1MPa sum of the weight of gas; charging rate refers to a certain stage in the outlet, under the 0.1MPa pressure, exhalation gas of positive and negative plate weight per unit of time. During the charging process, pores in the outflow of the Nikon D70S Battery Charger  electrolyte from plate in the outlet, affect the battery's chemical reaction, reducing the charging. Rate in the outlet is too large, gas will cause the active material falls off, affect battery capacity and service life. To extend battery life, increase the speed of charging, you should try to lower the rate in the outlet.

(3) temperature rise

Lead-acid storage battery fast charge, will have a high temperature, shortening battery life, General temperature control should be within 45 degrees centigrade.

(4) life

Fast charging, charging and discharging of the battery can achieve cycle times. Fast charge than conventional lead-acid battery charge low life expectancy.

2. General methods of rapid charge

(1) constant outgassing rate charge method

Batteries release gases using gas sensor detection rate, and thus controls the charging current. Charging to high current charging at the start, when the battery inside the gas reaches a certain value, according to the change of the sensor parameters, control signal was issued on the charging circuit, reduce the charge current, to maintain a constant rate in the outlet. This method cannot be used to charging sealed or maintenance-free battery. High current charging time should be less than 30 minutes.

(2) power control method

By measuring the charge into the battery's power to control the charging current. Using the method of charging, take master charge different charge States, controls the charging current.

(3) a constant voltage charging method

Identify and keep the charging voltage to a constant value of case, for fast charging. Early charge low battery voltage, charge current is large, as the charge, current gradually decreased. The method is simple, easy implementation of control system.

(4) no load constant voltage charging method

Temporary suspension before the charge current and charge is restored soon determined voltage, keeping it load and Panasonic Lumix DMC-FZ28 Battery Charger constant-pressure-free, the implicit internal resistance of the battery voltage does not drop, the method is applicable to different structures, different years and different charging status of the battery.

(5) method of constant current the fast charge cycle

Current amplitude is constant and constant cycle of pulse charge current to the battery charging, charging pulse discharge pulses between two polarized to improve battery charging capacity. During the charging process, the charge current and pulse width from the impact of battery charge status. The battery is full, but if it does not increase protection against overcharge device, easily lead to overcharge.

(6) the current rate in the outlet to quickly charge method

Throughout the course of the charge, charge current amplitude and pulse rate in the outlet of the battery always remains the same. Method is issued in a timely manner by gas sensor control signals, forcing the battery stopped charging and discharge for a short time. Makes battery polarization within the effect soon wore off, rates remain low in the outlet.

(7) current constant voltage rapid charging

At a constant current charging, when filled to the receiver when the voltage of the battery, stop charging and discharging, and high-current charging, charging and discharging process followed by alternates. Discharge pulse width with the fill power increases, charging pulse width with the fill power increase and decrease. When you charge and JVC BN-VF808U Battery Charger discharge amount equal to the basic amount, indicates that the battery is full, immediately ends the charge.

(8) rapid charging method of voltage and frequency

Charge pulse voltage amplitude remains constant, as the charge, battery electric potential increasing charging current amplitude reduced gradually, charging current pulse frequency constant, at two pulsed between discharge pulse.