Common problems of electric forklift lead-acid batteries

Aug 08,2020


There are many common problems with electric forklift lead-acid batteries. Therefore, common problems caused by this should be taken immediately and effective measures should be taken to eliminate them.

1. Capacity reduction

There are three common problems in reducing the capacity of lead-acid batteries:

One is that the short-circuit capacity cannot be reached, the other is that the capacity gradually decreases, and the third is that the capacity suddenly decreases.

The reason why the battery cannot reach the short-circuit capacity is that the battery is not fully charged after use. Second, the electrolyte density of lithium batteries is slightly lower. Third, the line is not smooth and the resistance is large. At this time, combing the outer line can reduce the resistance.

The reasons for the gradual decrease in battery capacity are: first, the potassium thiocyanate on the electrode plate can be removed when the battery is charging at this time. The second is that the lithium battery electrolyte penetrates into the damage deposit, so that the lithium battery electrolyte can be removed. The third is the partial short circuit of the battery, which can eliminate the common fault of short circuit fault.

The main reason for the sudden drop in bottle capacity is the common fault of internal and external short circuit.

2. Abnormal working standard voltage

There are two abnormal voltages in the battery working standard, one is that the standard voltage is higher when the battery is charging, and the standard voltage is lower when the battery is charging, and the other is that the open circuit voltage is lower when the battery is in use.

Potassium thiocyanate is the main cause of high working standard voltage and rapid reduction of working standard voltage. At the same time, according to the level of potassium thiocyanate, according to the adjustment of the concentration value of the hydraulic press, the composition of the hydraulic press, the current, etc., the pole piece acid industry is eliminated.

The main reason for the decrease of the open circuit voltage during battery use is the insertion error of the single-cell rechargeable battery, the insertion error of all lithium-ion batteries, the low capacity of the single battery or the common fault of short circuit. At this time, according to the order of the batteries, according to the inspection of the standard voltage of the single bottle operation, the consistency between the single electrode and the Wechat group, and the connection between the Wechat groups of the battery are perfect.

3. There is abnormal smoke

There are four kinds of abnormal smoke in the battery, one is no smoke or little smoke in the middle and late charging period of the battery, and the other is no smoke after the battery is charged.

The cause of no smoke or less smoke at the end of battery charging is a common fault of battery short circuit. In this case, the common fault location of a short circuit can be eliminated.

The main reason why the battery does not smoke after charging is the short circuit fault. In this case, the common fault location of a short circuit can be eliminated.

Premature smoking while charging the battery, many causes of smoking is potassium thiocyanate. At this time, potassium thiocyanate can be eliminated.

The main reason for the battery to smoke during the whole process is that the battery will not be idle after charging, that is, the battery is charging, or the lithium battery electrolyte has deposits. At this time, charge the battery by idle for about 1 hour, or remove the battery electrolyte.

4. The temperature of the electrolyte is too high

There are two situations where the electrolyte temperature is too high. One is that the electrolyte level of the ordinary battery rises abnormally when the battery is charged.

When ordinary batteries are being charged, the main reason for the abnormal temperature rise of the electrolyte is that the total flow rate is large or internal short-circuit faults are more common. At this time, the current can be adjusted or short-circuit faults can be eliminated. The temperature of some cells in the battery is higher than that of others, mainly due to potassium thiocyanate. At this time, potassium thiocyanate can be eliminated.