CN116231125B - Charging method of charger - Google Patents

Charging method of charger Download PDF

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Publication number
CN116231125B
CN116231125B CN202310036393.0A CN202310036393A CN116231125B CN 116231125 B CN116231125 B CN 116231125B CN 202310036393 A CN202310036393 A CN 202310036393A CN 116231125 B CN116231125 B CN 116231125B
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charging
rechargeable battery
battery pack
charger
voltage
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CN116231125A (en
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田洁
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Lead Lithium Zhixing Beijing Technology Co ltd
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Lead Lithium Zhixing Beijing Technology Co ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44Methods for charging or discharging
    • H01M10/441Methods for charging or discharging for several batteries or cells simultaneously or sequentially
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention provides a charging method of a charger, which comprises the following steps: a) Measuring terminal voltage U of rechargeable battery pack 0 The method comprises the steps of carrying out a first treatment on the surface of the b) The method comprises the following steps Charging to terminal voltage U of rechargeable battery pack with safe current value and time limit of charger 2 =U 0 +△U 2 Charging time T of charging when terminal voltage of rechargeable battery reaches U2 or set limit 2 When reached, jumping to step c); c) Cycling a) -b) when the terminal voltage U of the rechargeable battery pack 0 And when the voltage value is larger than the set normal terminal voltage value of the rechargeable battery pack, the battery pack jumps to normal charging. The charging method can realize safe charging.

Description

Charging method of charger
Technical Field
The invention relates to the field of battery charging.
Background
In the current lead-acid battery charging process, three-stage charging is usually used, namely an initial fast charging stage, an intermediate slow charging stage and a later equalizing charging stage. The high current is initially used to shorten the charging time; after the voltage of the battery rises to a certain value, constant voltage is used for controlling the water loss of the battery; and after the storage battery is basically full, the storage battery is changed into small-current power supply to reduce damage to the storage battery and complete balanced charging. The current charger is charged quickly by high current and constant current in the initial quick charging stage, the limit voltage of the charger is far higher than the actual voltage of the battery pack, a voltage difference exists between the limit voltage and the actual voltage, and when the charge state of one or more batteries in the battery pack is higher than that of other batteries, or the battery pack has one or more overdischarge batteries or the number of batteries theoretically adapted by the charger is larger than that of the actual rechargeable batteries, the charging can bring potential safety hazards, such as water loss, overheat and the like.
Disclosure of Invention
In order to solve the technical problems, the invention provides a charging method of a charger, comprising the following steps: a) Measuring terminal voltage U of rechargeable battery pack 0 The method comprises the steps of carrying out a first treatment on the surface of the b) The method comprises the following steps Charging to terminal voltage U of rechargeable battery pack with safe current value and time limit of charger 2 =U 0 +△U 2 Charging time T of charging when terminal voltage of rechargeable battery reaches U2 or set limit 2 When reached, jumping to step c); c) Cycling a) -b) when the terminal voltage U of the rechargeable battery pack 0 And when the voltage value is larger than the set normal terminal voltage value of the rechargeable battery pack, the battery pack jumps to normal charging.
Further, in step C), a charging time value is also set, and charging is ended when the charging time reaches the set charging time value.
Further, between the steps a) and b), it is preferable to further include a step of charging the rechargeable battery pack with current-limiting and voltage-limiting for a certain time T 1 Voltage limiting value U 1 =U 0 +△U 1
Further, deltaU 1 Equal to DeltaU 2。
Further, T 1 Is less than T 2 Is a value of (2).
Further, the terminal voltage of the rechargeable battery pack is measured, when the rechargeable battery pack is stationary, or when the rechargeable battery pack is charged with a minute current.
The invention also discloses a charging method of the other charger, which comprises the following steps of 1, basic charging; step 2, accurate charging; characterized in that the basic charging comprises: a) Measuring terminal voltage U of rechargeable battery pack 0; b) Charging at a limited time with the power allowed by the charger to the terminal voltage U of the rechargeable battery pack 4 =U 0 +△U 4, When the terminal voltage of the rechargeable battery pack reaches U 4 Or a set charging time T of time-limited charging 4 When the step is reached, jumping to the step C; c) Cycling a) -b) when the terminal voltage U of the rechargeable battery pack 0 And when the voltage value is larger than the set charge state terminal voltage value of the rechargeable battery pack, skipping to the step 2 for accurate charging.
Further, in step C), a charging time value is also set, and when the charging time reaches the set charging time value, the charging is ended or the accurate charging in step 2 is skipped.
Further, the allowable power of the charger is the maximum power of the charger.
Further, between step a) and step b), it is preferable to further include the step of limiting the voltage for a certain time T with the power allowed by the charger 3 Voltage limiting value U 3 =U 0 +△U 3
Further, the allowable power of the charger is the maximum power of the charger.
Further, deltaU 3 Equal to DeltaU 4。
Further, T 3 Is less than T 4 Is a value of (2).
Further, the terminal voltage of the rechargeable battery pack is measured, when the rechargeable battery pack is stationary, or when the rechargeable battery pack is charged with a minute current.
Further, after the basic charging of the step 1 is finished, before the accurate charging of the step 2, the method further comprises the step of adjusting the charging: and (3) charging with the maximum allowable current, and carrying out voltage limiting charging, and jumping to the step (2) for accurate charging when the current is smaller than a set value or the time is longer than the set value.
Further, the accurate charging step is: and (3) limiting voltage and limiting current for charging, and jumping to the next step of charging or ending the charging when the charging current is smaller than a set value or the charging time reaches the set value.
Further, the next step of charging is compensation charging.
Further, the compensation charging includes the steps of: a) The measured terminal voltage of the rechargeable battery pack, b) charging for a certain time with voltage limiting; c) And cycling the steps, and jumping to the next step when the measured terminal voltage of the rechargeable battery pack reaches a set value or the charging time reaches a set value.
Further, the next step is to end the charging and cut off the current after charging with a small current for a certain time.
Further, before the step 1, the charging method of claim 1 is further included.
Further, the charging method is applied to a lead-acid battery.
The charging method can realize safe charging.
Detailed Description
The invention is further described below in connection with specific embodiments.
The first charging method of the charger comprises the following steps of 1, basic charging: step 2, accurate charging; and 3, compensating charging.
Wherein step 1 basic charging is as follows:
a) Measuring terminal voltage U of rechargeable battery pack 0 The method comprises the steps of carrying out a first treatment on the surface of the In this step, the terminal voltage of the rechargeable battery pack may be measured when the rechargeable battery pack is stationary, or the terminal voltage of the rechargeable battery pack may be measured when the rechargeable battery pack is charged with a minute current, whichThe magnitude of the minute current at the position can be small enough as long as the charger can be ensured to be in a power supply state.
b) Charging with charger-allowed power, preferably maximum power, at a limited time to terminal voltage U of rechargeable battery pack 4 =U 0 +△U 4 ,△U 4 The value of (a) is the voltage increment of single battery (N) the number of battery cells of the battery pack, in this step, when the terminal voltage of the rechargeable battery pack reaches U 4 Or a set charging time T of time-limited charging 4 When the method is reached, jumping to the next step;
c) Cycling a) -b) when the terminal voltage U of the rechargeable battery pack 0 >When the set charge state terminal voltage value of the rechargeable battery pack is reached, the step 2 is skipped to accurately charge, or the charging is ended when the charging time reaches the set charging time value; in this step, the value obtained by the set state-of-charge terminal voltage value/N of the rechargeable battery pack is preferably smaller than or equal to the gassing voltage of the single battery, so that the terminal voltage of the rechargeable battery pack is not affected by the gassing behavior of the battery, the terminal voltage of the rechargeable battery pack is ensured to be measured accurately as much as possible, and the terminal voltage is preferably greater than the voltage value corresponding to 50% of the state-of-charge of the rechargeable battery pack, so that more electric quantity is ensured to be safely charged at this stage, and safe charging can be better realized.
The basic charging of the first charging method of the present invention preferably further comprises, between step a) and step b), the step of charging for a certain time T with the allowable power, preferably the maximum power, of the charger 3 Voltage limiting value U 3 =U 0 +△U 3 ;△U 3 The voltage increment of the single battery is the number N of the batteries of the battery pack, and the step can improve the charging speed of the charging method under specific working conditions, such as low-temperature or overdischarge batteries and the like, so as to improve the charging efficiency; to better utilize the charging efficiency of step b in the basic charging, T 3 Preferably less than T 4 Is a value of (2).
Wherein DeltaU 3 、△U 4 The safety charging voltage increment is set for the charger, and the magnitude of the safety charging voltage increment can be according to the ambient temperature, the charging multiplying power and the requirement during chargingOne or more parameters of the charging time are set in consideration, such as: the environment temperature is low, the safe charging voltage increment value can be improved, the charging multiplying power is high, the safe charging voltage increment value can be improved, the charging time is long, the safe charging voltage increment value can be improved, the specific safe charging voltage increment value can be reasonably set according to the actual charging environment, and the best delta U is that 3 =△U 4 This reduces the complexity of the program operation, in which case U 3 =U 4 In addition, deltaU at each cycle 3 Preferably the values of DeltaU are the same for each cycle 4 Preferably the values of (2) are the same, which also reduces the complexity of the program operation; where N is the number of cells of the battery pack for which the charger is designed to be suitable for charging.
In the first charging method of the present invention, after the basic charging in step 1 is finished, before the accurate charging in step 2, the method preferably further includes the step of adjusting the charging: and (3) charging with maximum allowable current, and carrying out voltage limiting charging, wherein when the current is smaller than a set value or the time is longer than the set value, jumping to the step (2), and preferably, the voltage value of the voltage limiting charging is adjusted according to the ambient temperature, and the voltage value of the voltage limiting charging is larger when the temperature is lower. Through the step of adjusting charging, more electric quantity can be efficiently charged after basic charging is completed and before accurate charging.
The accurate charging step of the first charging method of the present invention is preferably: and when the charging current is smaller than a set value or the charging time reaches the set value, the next step of compensation charging or the charging is finished. The set value of the charging time can be adjusted according to the ambient temperature, and the lower the temperature is, the longer the set value of the charging time is. The voltage value of the voltage limit of the accurate charging is preferably adjusted according to the ambient temperature, and the voltage value of the voltage limit is larger when the temperature is lower. According to the current limiting charging in the accurate charging step of the first charging method, water loss can be controlled, and the accurate charging time can also be controlled. The accurate charging of the first charging method of the present invention may be other existing charging methods.
The compensating charging step of the first charging method of the present invention preferably includes: a) The terminal voltage of the rechargeable battery pack measured when the rechargeable battery stands still can also be the terminal voltage of the rechargeable battery pack measured when the rechargeable battery is charged by micro current, and the magnitude of the micro current can be small enough as long as the charger can be in a power supply state; b) Limiting voltage and charging for a certain time; c) And cycling the steps, when the measured terminal voltage of the rechargeable battery pack reaches a set value or the charging time reaches a set value, jumping to the next step, d) after charging for a certain time with small current, ending the charging and stopping the current. The voltage value of the voltage-limiting charge is also preferably adjusted according to the ambient temperature, and the lower the temperature is, the larger the voltage value is. The set value to which the terminal voltage of the rechargeable battery pack reaches is preferably also adjusted according to the temperature, and the lower the temperature is, the larger the set value is. The compensation charging can better realize that the battery charges as much electric quantity as possible. The compensation charging of the first charging method of the present invention may be performed by other existing charging methods.
In the first charging method of the invention, in the basic charging of the step 1, the charging voltage of the rechargeable battery pack is gradually increased, so that the charging safety of the battery pack with one or more high-charge-state batteries in the rechargeable battery pack can be ensured, and on the other hand, the charging efficiency can be increased; the charging safety of the rechargeable battery pack during charging can also be ensured when the number of batteries which are theoretically adapted by the charger is more than the number of actual rechargeable batteries.
The invention also protects a second charging method of the charger, which can carry out protective charging on the overdischarged rechargeable battery pack, and when the terminal voltage value of the rechargeable battery pack reaches the normal charging, the charging is carried out normally so as to avoid damaging the overdischarged rechargeable battery pack. The charging method may include the steps of: 1) Protective charging; 2) And (5) normal charging. 2) The normal charging may be basic charging including step 1 of the charging method of the above embodiment: step 2, accurate charging; step 3, compensation charging, which may be a conventional three-stage charging method, includes: step 1, constant-current quick charging and step 2, constant-voltage charging; step 3, compensation charging, and the like, and various different programs capable of performing normal charging.
The charging method for protective charging of the present invention includes the following steps,
a) Measuring terminal voltage U of rechargeable battery pack 0 The method comprises the steps of carrying out a first treatment on the surface of the In this step, the terminal voltage of the rechargeable battery pack may be measured when the rechargeable battery pack is stationary, or may be measured when the rechargeable battery pack is charged with a minute current, where the magnitude of the minute current may be small enough as long as the charger is in a power supply state.
b) Charging with safe current value and time limit of charger to terminal voltage U of rechargeable battery pack 2 =U 0 +△U 2 ,△U 2 The value of (a) is the voltage increment of single battery (N) the number of battery cells of the battery pack, in this step, when the terminal voltage of the rechargeable battery pack reaches U 2 Or a set charging time T of time-limited charging 2 When the method is reached, jumping to the next step;
c) Cycling a) -b) when the terminal voltage U of the rechargeable battery pack 0 >When the set normal terminal voltage value of the battery pack is reached, the normal charging in the step 2 is skipped, or the charging is ended when the charging time reaches the set charging time value, or the normal charging in the step 2 is skipped; the set normal terminal voltage value of the battery pack is larger than or equal to the lowest voltage value which can be used for normal charging of the rechargeable battery pack.
The protective charging of the charging method of the present invention preferably further comprises the step of charging the rechargeable battery pack with current and voltage limiting for a certain time T between the step a) and the step b) 1 Voltage limiting value U 1 =U 0 +△U 1 ,△U 1 The value of (2) is the voltage increment of single battery and the number N of batteries of the battery pack; the step can improve the charging speed of the charging method under the over-discharging working condition of the battery so as to improve the charging efficiency. To better utilize the charging efficiency of step b in the protective charging, T 1 Preferably less than T 2 Is a value of (2).
Wherein DeltaU 1 、△U 2 The safety charging voltage increment set for the charger can be one or more parameters of the ambient temperature, the charging multiplying power and the time required to be charged during chargingThe number considers settings such as: the environment temperature is low, the safe charging voltage increment value can be improved, the charging multiplying power is high, the safe charging voltage increment value can be improved, the charging time is long, the safe charging voltage increment value can be improved, the specific safe charging voltage increment value can be reasonably set according to the actual charging environment, and the best delta U is that 1 =△U 2 This reduces the complexity of the program operation, in which case U 1 =U 2 In addition, deltaU at each cycle 1 Preferably the values of DeltaU are the same for each cycle 2 Preferably the values of (2) are the same, which also reduces the complexity of the program operation; where N is the number of rechargeable batteries of the battery pack for which the charger is designed to be suitable for charging.
According to the charging method for the protective charging, in the protective charging of the step 1, the charging safety of the overdischarge cell group can be realized and the charging efficiency can be improved by gradually increasing the charging voltage of the rechargeable battery.
In the first charging method of the present invention, a battery pack of normal 5 rechargeable batteries with nominal voltage of 60V20AH is charged by a charger of 60V20AH at an ambient temperature of 25 degrees celsius as an example:
wherein step 1 basic charging is as follows:
charging with 0.15A minute current for 30S, measuring the average voltage of the last 1S, and recording as terminal voltage U of the rechargeable battery pack 0 =60V;
Charging for 5min with maximum power of charger, and limiting voltage U 3 =60V+0.9*5V;
Charging to U with maximum charger power 4 =60v+0.95 v, set charge time to 30 min;
the terminal voltage U of the rechargeable battery pack is measured by circulating the steps 0 =68v, greater than 13.5x5v, jump to the step of adjusting charge;
and (3) adjusting charging:
limiting voltage to 14.70V/charging with maximum allowable current until current is less than 0.1C and skipping to constant voltage charging;
accurate charging:
limiting the voltage to 14.70V/D, limiting the current to 0.1C for charging, and skipping to the compensation charging when the current is less than 0.03C;
and (3) compensation charging:
the last 1S time U0 was measured at 0.15A for 10 minutes.
The charging was carried out for 50 minutes at a voltage limit of 14.70V/min.
The steps are circulated, and U is measured 0 =70v, greater than 13.5x5v, skip to next step;
charging was completed at 0.02C for 60 minutes and the current was turned off.
In this example, 21.2H of charge is charged for a total period of 8.7 hours.
In the first charging method of the present invention, a battery pack with a nominal voltage of 48V20AH is charged by a charger of 60V20AH at an ambient temperature of 25 degrees celsius, for example: (when the number of batteries matched with the charger is more than the actual number of rechargeable batteries)
Wherein step 1 basic charging is as follows:
charging with 0.15A minute current for 30S, measuring the average voltage of the last 1S, and recording as terminal voltage U of the rechargeable battery pack 0 =48V;
Charging for 5min with maximum power of charger, and limiting voltage U 3 =48V+0.9*5V;
Charging to U with maximum charger power 4 =48v+0.9x5v, set charge time to 30 minutes;
the steps are circulated to measure U 0 =56V, no greater than 13.50×5, and the time reaches 10 hours, ending the charge.
In the first charging method of the present invention, at an ambient temperature of 25 ℃, a battery pack with a nominal voltage of 60V20AH is charged by a charger of 60V20AH, wherein one battery charge state is 80%, and the other four batteries charge states are 30%, for example:
wherein step 1 basic charging is as follows:
charging for 30S with a minute current of 0.15A, measuring the average voltage of the last 1S, and recording as the terminal voltage 62V of the rechargeable battery pack;
charging for 5min with maximum power of charger, and limiting voltage U 3 =62V+0.9*5V;
With the most chargerHigh power charging to U 4 =62v+0.9x5v, the charging time set was 30 minutes;
the steps are circulated, U 0 =68v is greater than 13.505V, and the process jumps to the next step, i.e. the step of adjusting the charging.
The charging amount of the battery is 8.2AH, and the charging time is 4 hours.
In the second charging method of the present invention, an overdischarged battery with a nominal voltage of 60V20AH is charged by a charger of 60V20AH at an ambient temperature of 25 degrees celsius, for example:
1) Protective charging
Charging for 30S at 0.15A, measuring the last 1S average voltage u0=40v;
charging for 10S with a current limit of 0.15C, a voltage limit u1=40+0.9x5v;
charge to u2=40+0.95 v at 0.15C, the longest charge time is 5 minutes.
Step, it is measured that u0=60.4v, 60.4v is greater than 60V, and the normal charge is skipped, or the charge time reaches 2H to end the charge or also to skip to the normal charge.
2) And (5) normal charging.
In the second charging method embodiment of the present invention, the protective charging may charge 2.3AH for 0.9 hours.
In the protective charging method, if the non-overdischarge cell group is charged, after the normal cell is detected, namely the non-overdischarge cell, the protective charging program is skipped, and the normal charging program is directly carried out.
The charging method of the charger is applied to the lead-acid storage battery.
The above-described embodiment is only a preferred embodiment of the present invention, and is not limited in any way, and other variations and modifications may be made without departing from the technical aspects set forth in the claims.

Claims (14)

1. A charging method of a charger, comprising the steps of: a) Measuring terminal voltage U of rechargeable battery pack 0 The method comprises the steps of carrying out a first treatment on the surface of the b) The method comprises the following steps Charging at a safe current value and a time limit of the chargerTerminal voltage U of battery pack 2 =U 0 +△U 2 ,△U 2 For safe charging voltage increment, when the terminal voltage of the rechargeable battery reaches U 2 Or a set charging time T of time-limited charging 2 When reached, jumping to step c); c) Cycling a) -b), when the terminal voltage of the rechargeable battery is larger than the set normal terminal voltage value of the rechargeable battery, jumping to normal charging, wherein in the step c), a charging time value is also set, and charging is finished when the charging time reaches the set charging time value, and between the step a) and the step b), the method further comprises the following steps of charging the rechargeable battery for a certain time T by limiting current and limiting voltage 1 Voltage limiting value U 1 =U 0 +△U 1 ,△U 1 Equal to DeltaU 2, T 1 Is less than T 2 Is a value of (2).
2. The charging method of a charger according to claim 1, wherein the terminal voltage of the rechargeable battery pack is measured when the rechargeable battery pack is left standing or when the rechargeable battery pack is charged with a minute current.
3. The charging method of the charger comprises the following steps of 1, basic charging; step 2, accurate charging; characterized in that the basic charging comprises: a) Measuring terminal voltage U of rechargeable battery pack 0; b) Charging at a limited time with the power allowed by the charger to the terminal voltage U of the rechargeable battery pack 4 =U 0 +△U 4, △U 4 For safe charging voltage increment, when the terminal voltage of the rechargeable battery reaches U 4 Or a set charging time T of time-limited charging 4 And c) cycling a) -b), when the terminal voltage of the rechargeable battery pack is larger than the set charge state terminal voltage value of the rechargeable battery pack, skipping to the step 2 for accurate charging, wherein in the step c), a charging time value is also set, and when the charging time reaches the set charging time value, the charging is finished, and the accurate charging steps are as follows: voltage-limiting and current-limiting charging, when the charging current is smaller than the set valueWhen the fixed value or the charging time reaches the set value, the next step of charging is skipped or the charging is ended, after the basic charging of the step 1 is ended, before the accurate charging of the step 2, the method further comprises the step of adjusting the charging: and (3) charging with the maximum allowable current, and carrying out voltage limiting charging, and jumping to the step (2) for accurate charging when the current is smaller than a set value or the time is longer than the set value.
4. A method of charging a charger as claimed in claim 3, wherein the power allowed by the charger is the maximum power of the charger.
5. A method of charging a charger as claimed in claim 3 or 4, further comprising, between steps a) and b), the step of limiting the voltage for a time T with the power allowed by the charger 3 Voltage limiting value U 3 =U 0 +△U 3
6. A method of charging a charger according to claim 5, wherein the allowable power of the charger is a maximum power of the charger.
7. A charging method of a charger according to claim 5, wherein Δu 3 Equal to DeltaU 4。
8. The charging method of a charger as claimed in claim 5, wherein T 3 Is less than T 4 Is a value of (2).
9. A charging method of a charger according to claim 3, wherein the terminal voltage of the rechargeable battery pack is measured when the rechargeable battery pack is left standing or when the rechargeable battery pack is charged with a minute current.
10. A charging method of a charger according to claim 3, further comprising the charging method of claim 1 before said step 1, the basic charging.
11. A charging method of a charger as claimed in claim 3, wherein said step of precisely charging further comprises a compensation charging step, said compensation charging step comprising the steps of: a) The measured terminal voltage of the rechargeable battery pack, b) charging for a certain time with a voltage limit; c) And cycling the steps, and jumping to the next step when the measured terminal voltage of the rechargeable battery pack reaches a set value or the charging time reaches a set value.
12. The charging method of claim 11, wherein said next step is to end the charging and cut off the current after charging with a small current for a certain time.
13. A charging method of a charger according to claim 11 or 12, wherein the lower the temperature is, the larger the set value is reached by the terminal voltage of the rechargeable battery pack.
14. A method of charging a charger as claimed in claim 1 or 3, wherein the charging method is applied to a lead-acid battery.
CN202310036393.0A 2023-01-09 2023-01-09 Charging method of charger Active CN116231125B (en)

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CN101237071A (en) * 2007-02-03 2008-08-06 江苏双登集团有限公司 Charging method for valve sealing lead acid accumulator
CN102437389A (en) * 2011-12-30 2012-05-02 江苏双登集团有限公司 Charging method for valve-controlled seal lead-acid storage battery
WO2014044292A1 (en) * 2012-09-18 2014-03-27 Phonak Ag Method for charging a nimh battery, a battery charger and a system comprising a battery charger and a hearing device
CN114616124A (en) * 2019-10-09 2022-06-10 尼科公司 Battery charging device for charging deep discharge battery and battery charging system and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101237071A (en) * 2007-02-03 2008-08-06 江苏双登集团有限公司 Charging method for valve sealing lead acid accumulator
CN102437389A (en) * 2011-12-30 2012-05-02 江苏双登集团有限公司 Charging method for valve-controlled seal lead-acid storage battery
WO2014044292A1 (en) * 2012-09-18 2014-03-27 Phonak Ag Method for charging a nimh battery, a battery charger and a system comprising a battery charger and a hearing device
CN114616124A (en) * 2019-10-09 2022-06-10 尼科公司 Battery charging device for charging deep discharge battery and battery charging system and method

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