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Maintenance of power type batteries for electric forklifts

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Published by NEWTON February 02,2024

electric forklifts

1、 Maintenance of power type batteries for Jiangsu Taixing New Newton electric forklifts. The maintenance of power type batteries is basically the same as that of starting type batteries. In order to keep the batteries in good condition and extend their service life, special attention should be paid to the following aspects during battery use. When disassembling and handling batteries, precautions should be taken, and the batteries should be securely fixed on the vehicle@ The electrolyte should be pure to prevent dust from entering the interior of the battery. The dust and dirt on the surface of the battery should be regularly wiped off, and the vent hole of the liquid filling port should be kept unobstructed; 3. Timely remove corrosion from wire joints and pole posts, and tighten the joints; 4. Regularly check the density and liquid level of the electrolyte, and regularly check the discharge degree of the battery. Discharge in summer should not exceed 50%, and discharge in winter should not exceed 25%; Otherwise, supplementary charging should be carried out in a timely manner. The specific maintenance methods are shown in the table below:

Regular maintenance schedule for power type batteries

Maintenance project

Maintenance content

tool

Every day
(8 hours)

weekly
(50 hours)

monthly
(200 hours)

3 months (600 hours)

6 months (1200 hours)

 

 

 

 

 

move
power
type
Storage
electric
pool

Electrolyte level

visualization

 

0

0

0

0

Specific gravity of electrolyte

Hydrometer

 

0

0

0

0

Battery level

 

0

0

0

0

0

Is the wiring terminal loose

 

0

0

0

0

0

Is the connecting wire loose

 

0

0

0

0

0

Battery surface cleaning

 

0

0

0

0

0

Is the ventilation cover tightened,
Is the ventilation opening unobstructed

 

 

0

0

0

0

Stay away from fireworks

 

0

0

0

0

0

Note: "0" in the table represents inspection, correction, and adjustment.

 

2、 Diagnosis of common faults in the power type battery of Jiangsu Taixing New Newton electric forklift. The common fault diagnosis of power type batteries is shown in the table below:

 

Diagnosis of common faults in power type batteries

Fault phenomenon

Fault characteristics

Fault cause

Diagnostic measures

 

 

 

 

 

Reduced capacity

 

Unable to reach rated capacity or insufficient capacity

Insufficient charging or recharge after use

Balanced charging and improved operation methods

Low electrolyte density

Adjusting electrolyte density

External wiring is blocked and has high resistance

Streamline external wiring and reduce resistance

 

 

Gradually decreasing capacity

Severe vulcanization of the electrode plate

Repeated charging to eliminate plate sulfation

Electrolyte has impurities

Check the electrolyte and replace it if necessary

Local short circuit of battery

Repair or replace

Sudden decrease in capacity

Short circuit inside or outside the battery

Check the cause and eliminate it

Voltage
abnormal

The voltage of the battery is too high during charging, and the voltage drops quickly during discharge

Plate sulfation

Eliminating plate sulfation

The open circuit voltage of the battery significantly decreases during use

Reverse polarity or short circuit

Check the voltage of the individual battery

 

give off steam
abnormal

At the end of battery charging, there is no or little gas flow

Charging current too low or battery charging insufficient

Adjust the charging current and continue charging

Does not emit gas after charging the battery

Short circuit inside the battery

Check and eliminate

The battery deflates too early and has large bubbles during charging

Plate sulfation

Eliminating plate sulfation

The battery emits gas during placement or discharge

Discharge immediately after charging or impurities in the electrolyte

Leave it for about an hour to discharge or replace the electrolyte

High electrolyte temperature

Abnormal increase in liquid temperature during normal charging

Excessive current or internal short circuit during charging

Adjust charging current or eliminate short circuits

Individual electrical temperatures are higher than usual

Plate sulfation

Eliminating plate sulfation

Abnormal electrolyte density and color

The density of the battery increases little or remains unchanged during charging

Plate sulfation

Eliminating plate sulfation

After charging and discharging the battery, the density decreases significantly during storage

Battery self-discharge is serious

Replace the electrolyte

The color and odor of the electrolyte are abnormal, and there are turbid deposits

The electrolyte is impure and the active substance falls off

Replace the electrolyte and rinse the inside of the battery

 

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