JPWO2020065773A1 - Lead battery regeneration device and lead battery regeneration method - Google Patents

Abstract

Provided is a lead battery regenerator capable of regenerating a deteriorated battery.
The lead battery regenerator has a disposal determination unit, a sulfation removal charging unit, a discharge unit, a number of times determination unit, a charging unit, and a display unit. The sulfation removal charging unit causes a charging current in which a DC base current having a current value of 4A or more and 5A or less and a square wave pulse current having a frequency of 9kHz or more and 11kHz or less are superimposed on the battery from the battery regeneration device. Charge the battery for 9 minutes or more and 11 minutes or less. In this embodiment, by passing a charging current in which a DC base current having a current value of 4.2A and a pulse current of a square wave having a frequency of 10kHz are superimposed, the lead battery 7 is charged until 10 minutes have passed continuously. Charge. The sulfation removal charging unit can remove the sulfation that is the cause of deterioration of the lead battery 7 by applying the electric vibration due to the pulse current to the lead battery 7.

Description

The present invention relates to a lead battery regenerating device and a method for regenerating a lead battery.

For example, Patent Document 1 describes a battery charging means for charging a battery, a battery discharging means for discharging a battery, and a battery for monitoring the total voltage of the battery or individual cell voltages. A charging mode in which a voltage monitoring means and a discharge count monitoring means for monitoring the discharge count of the battery are provided, a battery is connected to the battery regenerator, and the battery is charged by the battery charging means, and the battery discharge The discharge mode in which the battery is discharged by the means is repeatedly performed, and when the number of discharges counted by the discharge number monitoring means reaches a preset predetermined number, the operation of the battery regenerator is performed. When the voltage of the entire battery monitored by the battery voltage monitoring means reaches a predetermined predetermined discharge end voltage set in advance, or monitored by the battery voltage monitoring means in the discharge mode. A battery regenerator is disclosed, which is configured to terminate the operation of the battery regenerator when any one of the individual cell voltages is reversed.

Further, in Patent Document 2, a charging current that superimposes a floating charging current from a charger, a DC base current from a reproducing device, and a square wave pulse current is supplied to an operating storage battery by a floating charging method. A storage battery regeneration processing method is disclosed, which comprises monitoring the progress of the storage battery regeneration processing based on the voltage data of each cell of the storage battery collected in series.

Japanese Unexamined Patent Publication No. 2009-284571 JP-A-2007-80552

An object of the present invention is to provide a lead battery regenerating device capable of efficiently regenerating a deteriorated lead battery.

The lead battery regenerating device according to the present invention includes a sulfation removing charging means for charging a lead battery by a charging current in which a DC base current and a square wave pulse current are superimposed, and a lead battery charged by the sulfation removing charging means. It has a discharging means for discharging the above and a charging means for charging the lead battery discharged by the discharging means.

Preferably, the frequency of the pulse current is 9 kHz or more and 11 kHz or less.

Preferably, it further has a number-of-times determining means for determining whether or not the lead-acid battery can be charged based on the number of times the lead-acid battery is charged by the sulfation-removing charging means and the number of times the lead-acid battery is discharged by the discharging means. The charging means charges the lead battery based on the determination result by the number-of-times determining means.

Preferably, a display means for displaying at least one of the charging status of the lead battery by the sulfation removing charging means, the discharging status of the lead battery by the discharging means, and the charging status of the lead battery by the charging means is provided. Have more.

Preferably, the disposal determining means for determining whether or not to discard the lead battery is further provided based on the voltage value of the voltage of the lead battery charged by the sulfation removing charging means, and the sulfation removing charging means is said to be said. The lead battery is charged based on the judgment result by the disposal judgment means.

Further, in the method for regenerating a lead battery according to the present invention, the lead battery is charged by a charging current obtained by superimposing a DC base current and a square wave pulse current, and the lead battery is charged by a sulfation removing charging step and the sulfation removing charging step. It has a discharge step for discharging the lead battery and a charging step for charging the lead battery discharged by the discharge step.

According to the present invention, a deteriorated lead battery can be efficiently regenerated.

It is a figure explaining the lead battery regeneration apparatus 10. It is a figure explaining the functional structure of the lead battery regeneration apparatus 10. It is a figure which illustrates the screen displayed on the touch panel 2. It is a flowchart explaining the lead battery regeneration processing method (S10).

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram illustrating a lead battery regenerator 10.
As illustrated in FIG. 1, the lead battery regenerator 10 has a touch panel 2 and wiring 4.
The lead battery regenerating device 10 is a device for regenerating a deteriorated lead battery. Here, the deteriorated lead battery means that the crystallized sulfation (lead sulfate) hardens by repeating charging and discharging for a long period of time, and the hardened sulfation proliferates on the surface of the electrode plate. It is a battery whose charging efficiency has decreased. Regeneration of a lead battery means that the deteriorated lead battery recovers to almost the same performance as a new one by removing sulfation which is a cause of deterioration of the battery. The shape of the lead battery regenerator 10 is not particularly limited. The lead battery regenerator 10 is electrically connected to the positive terminal 5 and the negative terminal 6 of the lead battery 7 through the wiring 4. The lead battery regenerating device 10 charges the lead battery 7 through the wiring 4. Further, the lead battery regeneration device 10 discharges the lead battery 7 through the wiring 4.

The touch panel 2 is, for example, a display device of the lead battery regeneration device 10 and a display that functions as an input device. The touch panel 2 displays soft keys, messages, and the like.

The wiring 4 is a wiring for electrically connecting the lead battery regeneration device 10, the positive terminal 5 and the negative terminal 6 of the lead battery 7.

The lead battery 7 is, for example, a rechargeable lead storage battery. Specifically, the lead battery 7 is, for example, an open type, a maintenance-free type, an AGM (Absorbed Glass Mat), a gel type battery or the like used for an automobile engine starter. Further, the lead battery 7 may be a calcium battery, a silver battery, or a hybrid battery. The lead battery 7 is electrically connected to the lead battery regenerator 10 through the wiring 4.

FIG. 2 is a diagram illustrating the function of the lead battery regeneration device 10.
As illustrated in FIG. 2, the lead battery regeneration device 10 of this example includes a disposal determination unit 101, a sulfation removal charging unit 102, a discharge unit 103, a number of times determination unit 104, a charging unit 105, and a display unit 106. And have. Further, the disposal determination unit 101, the sulfation removal charging unit 102, the discharging unit 103, the number of times determination unit 104, the charging unit 105, and the display unit 106 are realized by an electric circuit provided inside the lead battery regeneration device 10. ..

The disposal determination unit 101 determines whether or not to dispose of the battery based on the voltage value of the voltage of the lead battery 7 before charging by the sulfation removal charging unit 102. More preferably, the disposal determination unit 101 determines that the battery is discarded when the voltage value of the lead battery 7 is 10V or more and 11V or less. In this embodiment, the disposal determination unit 101 determines that the battery is discarded when the voltage value of the lead battery 7 is 10.5V or less. As a result, the user can determine the disposal of the battery before charging by the sulfation removing charging unit 102, and wasteful charging can be omitted.

Based on the determination result by the disposal determination unit 101, the sulfation removal charging unit 102 has a DC base current with a current value of 2 A or more and 20 A or less and a square with a frequency of 9 kHz or more and 11 kHz or less with respect to the lead battery 7 from the lead battery regeneration device 10. The lead battery 7 is charged for 9 minutes or more and 11 minutes or less by passing a charging current in which a wave pulse current is superimposed. In this embodiment, the sulfation removal charging unit 102 applies a charging current obtained by superimposing a DC base current having a current value of 4 A or more and 5 A or less, specifically a current value of 4.2 A, and a square wave pulse current having a frequency of 10 kHz. By flowing, the lead battery 7 is charged until 10 minutes have passed continuously. The sulfation removal charging unit 102 can remove the sulfation that is the cause of deterioration of the lead battery 7 by applying the electrical vibration due to the pulse current to the lead battery 7.
However, if the disposal determination unit 101 determines that the battery is to be discarded before the start of charging, the sulfation removal charging unit 102 does not charge the battery.

The discharge unit 103 tells the lead battery 7 to the lead battery regeneration device 10 until the voltage value of the lead battery 7 charged by the sulfation removal charging unit 102 becomes 16.3 V or less, or 9 minutes or more and 11 minutes. Discharge until the time between the following elapses. More preferably, in the discharge unit 103, a time elapses until the voltage value of the voltage of the lead battery 7 becomes 12.8 V or more and 15.8 V or less, or the discharge is continuously performed for 9 minutes or more and 11 minutes or less. Discharge until In this embodiment, the sulfation removing unit 101 discharges the lead battery 7 until the voltage value of the lead battery 7 reaches 12.8 V or until the discharge is continuously performed for 10 minutes.

Here, the sulfation removing charging unit 102 and the discharging unit 103 charge and charge the lead battery 7 by providing a pause period between the charging by the sulfation removing unit 101 and the discharging by the discharging unit 103. It is possible to prevent deterioration due to heat generated by electric discharge.

The number-of-times determination unit 104 determines whether or not the charging by the sulfation removal charging unit 102 and the discharging by the discharging unit 103 are repeated 15 times or less, more preferably 9 times or more and 11 times or less. In this embodiment, the number-of-times determination unit 104 determines whether or not the charging by the sulfation removal charging unit 102 and the discharging by the discharging unit 103 are repeated 10 times.
Here, the effect of sulfation removal does not increase in proportion to the number of repetitions of charging by the sulfation removing charging unit 102 and discharging by the discharging unit 103. Even if charging and discharging are repeated 12 times or more, no effect is seen for the time required for charging and discharging, and if it is 8 times or less, sulfation cannot be completely removed depending on the deterioration state of the battery. There is.

The charging unit 105 is constant with respect to the lead battery 7 from the lead battery regenerating device 10 until the voltage value of the voltage of the lead battery 7 becomes 16.3V or less with respect to the lead battery 7 discharged by the discharging unit 103. The lead battery 7 is charged with an electric current (hereinafter referred to as a constant current). The constant current value is in the range of the current value of 2A or more and 20A or less, and is appropriately selected according to the capacity of the lead battery 7 to be regenerated. The charging unit 105 of this embodiment charges the lead battery 7 with a constant current having a current value of 4 A or more and 5 A or less until the voltage value of the lead battery 7 becomes 12.8 V or more and 15.8 V or less. Specifically, the charging unit 105 charges the lead battery 7 with a constant current having a current value of 4.2 A until the voltage value of the lead battery 7 reaches 12.8 V. However, when 6 hours have passed since the charging unit 105 was charged, the charging unit 105 stopped charging the lead battery 7 even if the voltage value of the lead battery 7 did not become 12.6 V or more and 16.3 V or less. do. In this embodiment, the charging unit 105 stops charging the lead battery 7 when 6 hours have passed since the charging was performed, even if the voltage value of the lead battery 7 does not reach 12.8 V.

Further, after the lead battery 7 is charged with a constant current, the charging unit 105 applies a voltage (hereinafter referred to as a constant voltage) which is a constant voltage value of 16.3 V or less to the lead battery 7 from the lead battery regeneration device 10. To maintain the current value of the current flowing from the lead battery regenerator 10 to the lead battery 7, gradually reduce the current value from the predetermined current value within the range of 2A or more and 20A or less, and the lead battery 7 until it reaches an appropriate current value. Charge the battery. More preferably, the charging unit 105 charges the lead battery 7 so as to maintain a constant voltage value of 12.8 V or more and 15.8 V or less. As a result, the value of the specific gravity (concentration of dilute sulfuric acid contained in the liquid) of the battery liquid in the lead battery 7 rises to 1.26 or more. Here, if the voltage value of the constant voltage exceeds 16.3 V, the lead battery 7 may be damaged. Further, when the voltage value of the constant voltage is less than 12.6 V, the efficiency is poor in that the value of the specific gravity of the battery liquid in the lead battery 7 is increased. In this embodiment, the charging unit 105 gradually lowers the current value of the current flowing from the lead battery 7 to the lead battery regenerator 10 from the current value of 4.2 A so as to maintain a constant voltage of 12.8 V. The lead battery 7 is charged until the current value becomes appropriate.

The display unit 106 causes the touch panel 2 to display a caution screen according to the instructions of the disposal determination unit 101 and the charging unit 105. Further, the display unit 106 shows the charging status of the battery by the sulfation removal charging unit 102, the discharging status of the battery by the discharging unit 103, and the charging of the battery in the process of constant current charging or constant voltage charging by the charging unit 105. At least one of the situations is displayed on the touch panel 2 on the screen. In this embodiment, the display unit 106 displays the charging status of the battery and the discharging status of the battery on the touch panel 2 during charging by the sulfation removing charging unit 102 and discharging by the discharging unit 103, respectively. Further, the display unit 106 causes the touch panel 2 to display the charging status of the battery during constant current charging or constant voltage charging by the charging unit 105.

FIG. 3 is a diagram illustrating a display screen on the touch panel 2 in this embodiment.
FIG. 3A is a diagram illustrating a display screen on the touch panel 2 of the lead battery regenerating device 10 during charging by the sulfation removing charging unit 102 and discharging by the discharging unit 103. Further, FIG. 3B is a diagram illustrating a display screen on the touch panel 2 of the lead battery regeneration device 10 while the lead battery 7 is being charged at a constant current value. Further, FIG. 3C is a diagram illustrating a display screen on the touch panel 2 of the lead battery regeneration device 10 during charging at a constant voltage value.

As illustrated in FIG. 3, the display unit 106 is being charged by the sulfation removal charging unit 102, discharging by the discharging unit 103, and charging at a constant current or a constant voltage by the charging unit 105. The progress status is displayed on the touch panel 2. More specifically, the touch panel 2 displays the charging status of the sulfation removal charging unit 102, the discharging status of the discharging unit 103, and the constant current or constant voltage charging status of the charging unit 105. In this embodiment, the display unit 106 causes the touch panel 2 to display the display area 20, the display area 21, the display area 22, the operation start button area 23, and the pause button area 24.

The operation start button area 23 and the pause button area 24 can be directly touched by the user to start or pause the operation of the lead battery regeneration device 10. Further, the display area 20, the display area 21, and the display area 22 are areas that can only be displayed.

The display area 20 is an area for displaying the name of the screen. In this embodiment, the area 20 is displayed as "operation monitor screen".

The display area 21 is an area for displaying the operating status of the operation of the lead battery regenerator 10.
The display area 21 displays, for example, a status display, a charge, a remaining number of discharges, a total charge time, a total discharge time, an elapsed time display in constant current charging, an elapsed time display in constant voltage charging, and a progress status. A progress bar is displayed to indicate.

The display area 22 is an area for displaying the current value and the voltage value in the lead battery regenerating device 10 or the lead battery 7.

The operation start button area 23 is an area for displaying the operation start button. The operation start button is a button for instructing to start the operation of the lead battery regeneration device 10.

The pause button area 24 is an area for displaying the pause button. The pause button is a button for instructing to suspend the operation of the lead battery regeneration device 10.

In the display area 21 and the display area 22 of the touch panel 2, when the sulfation removing unit 101 repeatedly charges and discharges the lead battery 7, in this embodiment, as illustrated in FIG. 3 (A). Is displayed.
In this case, the display area 21 displays the status display, the remaining number of charges and discharges, the total charge time, and the total discharge time. The status display is, for example, the display content of "charging / discharging". The display of the remaining number of times is, for example, the display content of "remaining number of times: 8" when charging and discharging are repeated twice each and the remaining number of times is 8 times each. The total charging time display is, for example, a display content of "25 minutes during charging" when the total charging time is 25 minutes. The display of the total discharge time is, for example, the display content of "15 minutes during discharge" when the total discharge time is 15 minutes. As a result, the user can visually grasp the progress of charging / discharging in the sulfation removing unit 101.
Further, in the display area 22, the target voltage value of the voltage in the lead battery 7 and the current value of the base current of the charging current in the lead battery regenerating device 10 are displayed. The target voltage value of the voltage in the lead battery 7 is, for example, the display content of "voltage 12.8 V" when discharging until the voltage value of the voltage in the lead battery 7 becomes 12.8 V or less. The current value of the base current of the charging current is, for example, the display content of "current 4.2A" when the lead battery 7 is charged with the current value of the base current of the charging current of 4.2A.

The display area 21 and the display area 22 are displayed as illustrated in FIG. 3B in this embodiment when the charging unit 105 charges the lead battery 7 with a constant current.
In this case, the display area 21 displays a status display, an elapsed time display in constant current charging, and a progress bar indicating the progress status. The status display is, for example, the display content of "charging at a constant current". The elapsed time display is, for example, the display content of "elapsed time 1h15min" when the constant current charging has passed 1 hour and 15 minutes. The progress bar is, for example, a display content indicating what percentage has passed with respect to 6 hours, which is the maximum charging time of constant current charging. As a result, the user can visually grasp what percentage of the total constant current charging has progressed.
Further, in the display area 22, the target voltage value of the voltage in the lead battery 7 and the current value in the constant current charging of the lead battery 7 are displayed. The target voltage value of the voltage in the lead battery 7 is, for example, the display content of "current 4.2A" when the lead battery 7 is charged with a constant current of 4.2A. The current value in constant current charging for the lead battery 7 is, for example, lead until 6 hours have passed from the start of constant current charging or the voltage value of the voltage in the lead battery 7 becomes 12.8 V or more. When charging the battery 7, the display content is "voltage 12.8V".

The display area 21 and the display area 22 of the touch panel 2 are displayed as illustrated in FIG. 3C in this embodiment when the charging unit 105 charges the lead battery 7 at a constant voltage. ..
In this case, the display area 21 displays a status display, an elapsed time display in constant voltage charging, and a progress bar indicating the progress status. The status display is, for example, the display content of "charging at a constant voltage". The elapsed time display is, for example, a display content of "elapsed time 1h15min" when constant voltage charging has passed 1 hour and 15 minutes. The progress bar is a display content indicating the progress status indicating what percentage has passed with respect to the maximum charging time of 5 hours for constant voltage charging. As a result, the user can visually grasp what percentage of the total constant voltage charging has progressed.
Further, the display area 22 displays the voltage value in the constant voltage charging for the lead battery 7 and the initial current value in the constant voltage charging for the lead battery 7. The voltage value in constant voltage charging for the lead battery 7 is, for example, "voltage 12.8V" when the lead battery 7 is charged with a constant voltage of 12.8V. The initial current value of constant voltage charging for the lead battery 7 is, for example, an initial current value of 4.2 A, and when the lead battery 7 is charged, the display content is "current 4.2 A".

FIG. 4 is a flowchart illustrating a battery regeneration process (S10) in the lead battery regeneration device 10. The process of this flowchart is started by the user touching the operation start button in the operation start button area 23 of the touch panel 2 to operate the lead battery regeneration device 10.
As illustrated in FIG. 4, in step 100 (S100), the disposal determination unit 101 in the lead battery regeneration device 10 determines whether or not the voltage value of the voltage of the lead battery 7 is larger than 10.5V. When the voltage value of the voltage of the lead battery 7 is larger than 10.5 V (S110: Yes), the battery regeneration process (S10) shifts to S110, and the voltage value of the voltage of the lead battery 7 is 10.5 V or less. In the case (S110: No), the battery regeneration process (S10) shifts to S105.

In step 105 (S105), the display unit 106 causes the touch panel 2 to display a caution screen indicating that the battery cannot be regenerated because the voltage value of the lead battery 7 is 10.5 V or less. As a result, the user can determine that the lead battery 7 cannot be regenerated and can discard the lead battery 7.

In step 110 (S110), the sulfation removal charging unit 102 in the lead battery regeneration device 10 superimposes a DC base current and a square wave pulse current having a frequency of 10 kHz on the lead battery 7 from the lead battery regeneration device 10. The charging current is passed through the lead battery 7 to charge the battery for 10 minutes.

In step 115 (S115), the discharge unit 103 discharges the lead battery 7 to the lead battery regeneration device 10.

In step 120 (S120), the discharge unit 103 determines whether or not the battery has been discharged for 10 minutes or more, or whether or not the voltage value of the voltage of the lead battery 7 is 12.8 V or less. When the battery is discharged for 10 minutes or more, or when the voltage value of the lead battery 7 is 12.8 V or less (S120: Yes), the battery regeneration process (S10) shifts to S125 and the discharge is performed. When it is less than 10 minutes and the voltage value of the voltage of the lead battery 7 is larger than 12.8 V (S120: No), the battery regeneration process (S10) shifts to S115.

In step 125 (S125), the number-of-times determination unit 104 determines whether or not the number of times of charging by the sulfation removing unit 102 and discharging by the discharging unit 103 has reached 10 times, respectively. When the number of times of charging by the sulfation removing unit 102 and discharging by the discharging unit 103 reaches 10 times (S125: Yes), the battery regeneration process (S10) shifts to S130 and is charged by the sulfation removing unit 102. And, when the number of discharges by the discharge unit 103 has not reached 10 times (S125: No), the battery regeneration process (S10) shifts to S110.

In step 130 (S130), the charging unit 105 charges the lead battery 7 from the lead battery regenerating device 10 with a constant current having a current value of 4.2 A.

In step 135 (S120), the charging unit 105 determines whether or not the voltage value of the voltage of the lead battery 7 is 12.8 V or more, or whether or not the constant current charging time exceeds 6 hours. When the voltage value of the voltage of the lead battery 7 is 12.8 V or more, or when the constant current charging time exceeds 6 hours (S135: Yes), the battery regeneration process (S10) shifts to S140. When the voltage value of the voltage of the lead battery 7 is less than 12.8 V and the constant current charging time is less than 6 hours (S135: No), the battery regeneration process (S10) shifts to S130.

In step 140 (S140), the charging unit 105 determines whether or not the constant current charging time is within 6 hours. When the constant current charging time exceeds 6 hours (S125: Yes), the battery regeneration process (S10) shifts to S145, and when the constant current charging time is within 6 hours (S150: No). , The battery regeneration process (S10) shifts to S150.

In step 145 (S145), the display unit 106 causes the touch panel 2 to display a caution screen indicating that the battery may be defective and the battery status needs to be checked. As a result, the user checks whether or not the connection method of the lead battery 7 is defective and whether or not the type of the lead battery 7 is out of conformity. The user can determine that the battery is defective and discard the lead battery 7 if there is no defect in the battery connection method and if there is no non-conformity of the battery type.

In step 150 (S150), the charging unit 105 charges the lead battery 7 from the lead battery regenerating device 10 so as to maintain a constant voltage of 12.8 V.

In step 155 (S155), the charging unit 105 determines whether the current value of the current flowing from the lead battery 7 to the lead battery regenerating device 10 is an appropriate current value, or whether the constant voltage charging time is 5 hours or more. Is determined. When the current value flowing from the lead battery 7 to the lead battery regeneration device 10 is equal to or less than an appropriate current value, or the constant voltage charging time is 5 hours or more (S155: Yes), the battery regeneration process (S10) is performed in S160. When the current value of the current flowing from the lead battery 7 to the lead battery regeneration device 10 is larger than the appropriate current value and the constant voltage charging time is less than 5 hours (S155: No), the battery is regenerated. The process (S10) shifts to S150.

In step 160 (S160), the charging unit 105 determines whether or not the constant voltage charging time is within 5 hours. When the constant voltage charging time is within 5 hours (S160: Yes), the battery regeneration process (S10) is completed, and when the constant voltage charging time exceeds 5 hours (S160: No), the battery The reproduction process (S10) shifts to S165.

In step 165 (S165), the display unit 106 causes the touch panel 2 to display a caution screen indicating that the battery may be defective and the battery status needs to be checked.

As described above, the lead-acid battery rechargeable device 10 of the present embodiment continuously regenerates the battery and charges the deteriorated battery by removing the sulfation to recharge the battery, thereby regenerating the battery and recharging the battery. Can be easily charged.
In addition, the user can grasp the progress of the sulfation removal and charging of the battery.
Although the embodiments according to the present invention have been described above, the present invention is not limited to these embodiments, and various changes, additions, and the like can be made without departing from the spirit of the invention.

1 Main unit 2 Display 3 Power switch 4 Wiring 5 Positive terminal 6 Negative terminal 7 Lead battery 10 Lead battery regenerator 101 Disposal judgment unit 102 Sulfation removal charging unit 103 Discharging unit 104 Number of times determination unit 105 Charging unit 106 Display unit

Claims (6)

A sulfation removal charging means that charges the battery with a charging current that superimposes a DC base current and a square wave pulse current.
Discharging means for discharging the battery charged by the sulfation removing charging means, and
A lead battery regenerator having a charging means for charging a battery discharged by the discharging means. The lead battery regenerator according to claim 1, wherein the frequency of the pulse current is 9 kHz or more and 11 kHz or less. Further, it has a number-of-times determining means for determining whether or not the battery can be charged based on the number of times the battery is charged by the sulfation-removing charging means and the number of times the battery is discharged by the discharging means.
The lead battery regeneration device according to claim 2, wherein the charging means charges a battery based on a determination result by the number-of-times determination means. The third aspect of claim 3 further comprises a display means for displaying at least one of the charging status of the battery by the sulfation removing charging means, the discharging status of the battery by the discharging means, and the charging status of the battery by the charging means. Lead-acid battery recharger. Further, it has a disposal determination means for determining whether or not to discard the battery based on the voltage value of the voltage of the battery to be charged by the sulfation removal charging means.
The lead battery rechargeable device according to claim 4, wherein the sulfation removal charging means charges a battery based on a determination result by the disposal determination means. A sulfation removal charging step that charges the battery with a charging current that superimposes a DC base current and a square wave pulse current.
A discharge step that discharges the battery charged by the sulfation removal charge step, and a discharge step.
A method for regenerating a lead battery having a charging step for charging a battery discharged by the discharging step.

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