Brand: Shi Neng | Rechargeable battery voltage:12V |
model:CZC7-20A/12V | Rated charging current:20A |
Rated input voltage: single phase220V 50~60Hz | Dimensions:170×250×75mm |
Charging input power:0.35KW | Weight: 3.3Kg |
9-12Battery capacity corresponding to hourly charging time:80Ah-160Ah |
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Instructions for use
one, Normal charging
When the charger is connected to the power supply, the battery is correctly connected. After a delay of about 10 seconds, the charger will automatically charge according to the normal charging procedure.;If the battery is not connected, the charger will always be in standby state;
The entire charging process is as follows:
1. Constant current stage: At the initial stage of charging, the battery has a strong ability to absorb current. When charging with a larger constant current, the battery voltage gradually rises;
2. Constant voltage stage: When the battery voltage rises to 1.2 to 1.25 times the rated voltage, it enters constant voltage charging, the battery voltage no longer rises, and the charging current gradually decreases;
3. For ordinary lead-acid batteries and maintenance-free lead-acid batteries, due to the different characteristics of the batteries, the third stage of the charging process is carried out in a small constant current charging method and a floating charging method.
Small constant current stage(Suitable for charging ordinary lead-acid batteries): When the charging current drops to 2-3A or the constant voltage lasts for 4 hours, the charger will automatically switch to the small constant current charging stage, enter the small constant current stage, the battery voltage rises slightly; the small constant current stage lasts for 3 hours, the machine automatically Shut down.Floating stage(Suitable for charging maintenance-free lead-acid batteries): When the current drops to 2-3A or the constant voltage lasts for 4 hours, the charger will automatically switch to the floating charging stage, and the floating charging will continue for 3 hours, and the machine will automatically shut down.
Note: The constant voltage point voltage and the floating charge voltage will be automatically compensated according to the temperature, and the single cell battery voltage is 3-4mV/℃ for compensation.
4. Sufficient shutdown: At this time, the battery is sufficient and the user can use it;
5. Equalizing charge:
This machine has two modes of automatic equalization and manual preset equalization for users to choose.
5.1 AutomaticEqualizing charge:
After the battery is fully shut down,If the battery and power supply are still in contact with the machine,15 hours later,ChargerThe equalizing charge will be performed automatically.
5.2 ManuallyBalance charging:
Press and hold the function key for about 4 seconds(At this time, the digital tube on the right side of the panel displays the seconds)toRelease after the light is on, The manual equalization function is set.
After the battery is fully shut down,If the battery and power supply still keep in touch with the machine,Hours later,ChargerWill automatically enter the manual equalization charging.
6. Maintenance phase:
After the equalization charge is over, the charger will keep charging the battery once every 24 hours to replenish the power lost by the battery due to long-term non-self-discharge.
two, Initial charge
*The concept of initial charge: initial charge refers to the secondary charge after adding electrolyte to a new battery that is dry-discharged. Some of the batteries on electric vehicles have been initially charged before they leave the factory, and only need to be recharged normally. If the initial charging operation is performed, the performance of the battery will decrease. Therefore, it is necessary for the user to consult on the condition of the battery before recharging the newly purchased electric vehicle..
Initial charging process: first use the rated current for constant current charging, whenWhen the battery voltage rises to 1.2 to 1.25 times the rated voltage, Automatically transfer to small constant current charging, the current is 1/2 of the rated current value, the total initial charging time is 72 hours, and the charging will automatically stop when the time is up, and the initial charging will be completed.
Enter the initial charging method:
Press and hold the function key for 10 seconds(In the meantime, the digital tube on the right side of the panel corresponds to the number of seconds.), Release it after the initial charge light turns on, and the initial charge function has been set. The charger automatically enters the initial charging mode.
Note:Please set it before the charger is charged or within 2 minutes after entering the normal charging, otherwise the setting will be invalid
Human-controlled strong charging For long-term unused or vulcanized batteries, the initial charging method can be used for forced charging to activate, but the charging time must be controlled by personnel to prevent battery damage!
| Failure phenomenon | Causes and solutions |
1 | Light does not shine | ◆ Input power is not connected-power on |
2 | Long standby state | ◆ Battery is not connected‐ correctly connect the battery |
3 | The fan does not turn | ◆ Input power voltage is too low-check and adjust the input power ◆ The charging output line has been oxidized or has poor contact-check and replace or fix it again ◆ The fan is broken‐ replace |
4 | The charger has been in Overheating charging state | ◆ The temperature inside the machine is too high-the ambient temperature is high and the heat dissipation is not smooth. After the temperature drops, it will automatically resume charging ◆ The temperature relay on the radiator of the rectifier module is damaged-replace the temperature relay of the same specification ◆ The fan is broken‐ replace |