If the car wash gun battery is not used for a long time and cannot be charged or discharged, you can try the following methods to activate the battery:
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1. Battery activation Method 1:
After charging with a low-voltage charger for 10 minutes, measure the battery with a multimeter to see if the voltage changes. Generally, the battery turns green indicating that the voltage has increased; Continue to charge the battery for about 30 minutes, and repeat the above process two to three times, generally the battery can be activated.
2. Battery activation Method 2:
First charge the battery, should be sure to charge at a higher charging voltage, it is best to continue charging for a period of time before trying to use. If the battery has been placed for no more than one year, it is best to discharge the internal resistance of the instrument to below 0.05 ohms, and then charge to the rated voltage and then charge normally.
3. Battery activation Method 3:
If the electric vehicle is not used for a long time, it should be fully charged and placed in a cool and dry place, and charged regularly (about 20 days). If a multimeter or other measuring instrument is not available, try using a light bulb to activate the battery. Connect the light bulb to the poles of the battery and turn on the switch. This may activate the battery and allow it to be recharged.
4. Battery activation Method 4:
When the charger jumps the light (has not yet turned green), add 1-2 hours of charging time to let the battery fully heat up. If the above methods still cannot solve the problem, it is recommended to seek professional help.
If the battery of the car wash gun is not used for a long time, it may cause the battery to lose activity and cannot be charged or discharged normally. Here are some possible ways to activate:
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1. Activate with a charger: Plug the charger into a power outlet, then plug the output of the charger into the charging port of the battery. If the battery has been fully discharged, it may take a while for the charger to detect the battery. Once the charger detects the battery, it will start charging, which can take several hours.
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2. Use the universal charge to activate: Connect the universal charge to the power supply, and then plug the output end of the universal charge into the charging interface of the battery. At this time, the indicator of the universal charger may blink, indicating that the universal charger is being activated. After waiting for a period of time, the indicator of the universal charger should be steady on, indicating that the battery has been successfully activated.
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3. Replace the battery: If the battery cannot be activated by the above methods, the battery may be damaged and needs to be replaced with a new battery.
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It should be noted that if the battery has not been used for a long time, it is recommended to try to use the charger to activate first, rather than directly use the universal charge to activate, because the output current of the universal charge may be large, which may cause damage to the battery. At the same time, if the battery has been damaged, it is recommended not to continue to use, so as to avoid safety risks.