The charger of the charging lamp is not bright because the battery capacity inside the lamp is seriously reduced and the electrolyte is dried out or damaged.Battery maintenance method:1, the battery is not used for a long time, it will slowly discharge itself until scrapped. Therefore, the car should be started every certain time to charge the battery. Another way is to pull off the two electrodes on the battery, it should be noted that the positive and negative electrode wires are pulled from the electrode column, and the negative electrode line should be removed first, or the connection between the negative electrode and the car chassis should be removed.Then unplug the other end with the positive sign (), the battery has a certain service life, to a certain period of time to replace. In the replacement of the same to follow the order, but in the electrode line up, the order is the opposite, first connected to the positive pole, and then connected to the negative pole.2, when the ammeter pointer shows insufficient power storage, it should be charged in time. The amount of energy stored by the battery can be reflected on the instrument panel. Sometimes on the way to find that the power is not enough, the engine is turned off and can not start, as a temporary measure, you can ask other vehicles for help, use the battery on their vehicles to start the vehicle, the negative and negative of the two batteries are connected, and the positive and positive terminals are connected.3, the density of the electrolyte should be adjusted according to the standard in different regions and different seasons.
This situation, in most cases, is because the battery of your charging desk lamp has lost its power storage function, so it must be lit when the charging line continues to charge.
After this situation, you can take your lamp to the electrical maintenance department, let them check it, find out the fault and solve it later.