The battery has been charged for eight hours, but there is still no electricity at all, and it cannot be charged at all. What is the cause?
Electric vehicle batteries cannot be recharged. When the batteries are aging, they cannot be brought back to life through repairs, and they can only be scrapped.
When the battery loses water, the battery can still be used after replenishing water as required.
If the electrode plate is vulcanized, charging and discharging will show that the voltage rises quickly and the capacity is obviously reduced. Repair equipment should be used to remove sulfur to restore the electrode plate and restore activity.
Check whether the connection of the charging circuit is reliable, check whether the connection is in good contact with the plug, carefully check whether the socket box plug has "fire" arc phenomenon, whether there is line damage, disconnection, etc. Check whether the charger is damaged and whether the charging parameters meet the requirements.
When the contact between the fuse tube and the fuse holder is poor, the battery cannot be charged or the battery is not fully charged. As long as the positions of the two are adjusted to make the contact good, the problem will be solved.
When the plug-in in the battery is in poor contact or the lead wire is broken, it will not be charged. You can reconnect it or change the wire.
When the charger can't charge, but the indicator light is still on, we will mistakenly think that it is charging all the time, but it can't be charged at all!
When the circuit board in the dial has an open circuit, it will also cause the battery to fail to charge. Just replace or repair the circuit board.