During the charging process of an electric forklift battery, improper operation may lead to risks such as electric shock, fire, and battery damage. The following safety precautions must be strictly followed:

1. Preparation before charging

Environmental inspection

The charging area must be well-ventilated (especially for lead-acid batteries to avoid hydrogen accumulation) and away from fire sources, heat sources (such as heating, open flames) and flammable and explosive materials (gasoline, alcohol, etc.).

The ground should be dry and flat to avoid water accumulation (to prevent electric shock). It is recommended to set up a dedicated charging area and post signs such as "No Open Flames" and "High Voltage Danger".

Battery and charger inspection

Check that the battery has no damage, leakage, or bulging on its appearance, and that the terminals are not corroded (if corroded, clean with a baking soda solution and dry it).

Inspect the charger cables and plugs for intactness, no damage, exposure, or looseness. Do not use damaged charging equipment.

For lead-acid batteries, check the electrolyte level. If it is below the scale line, add distilled water (do not add tap water or electrolyte).

2. Operational specifications during charging

Correct connection and power-off

First, turn off the forklift power, then connect the battery to the charger (align the plug with the socket to avoid sparks caused by forced plugging and unplugging).

After charging, first disconnect the charger power, then unplug the battery plug (to prevent arc burns).

It is forbidden to plug or unplug the plug or shake the cable during charging to avoid short circuits.

Charging duration and status monitoring

Follow the principle of "shallow charging and shallow discharging". For lead-acid batteries, avoid over-discharging (charge in time when the power is below 20%). After being fully charged, power off in time (usually 8-10 hours to avoid battery bulging and leakage caused by overcharging).

Although lithium batteries have BMS protection, they should still be avoided from being stored at full charge for a long time. It is recommended to power off within 1 hour after being fully charged.

During charging, someone must patrol regularly to check if the battery is abnormally hot, has an unusual smell, or is leaking. If any problem is found, power off immediately and handle it.

Prohibited behaviors

Do not cover the battery or charger during charging (to prevent fire caused by poor heat dissipation).

Do not smoke, use open flames near the battery, or place metal tools (to avoid short circuits).

Do not mix chargers and batteries of different models and brands (for example, using a lithium battery charger for a lead-acid battery may cause battery damage).

3. Handling of special situations

Battery leakage

If electrolyte leakage is found, stop charging immediately, wear protective gloves and goggles, cover the leaked liquid with dry sand (to neutralize the acidic electrolyte), and then collect and dispose of it in a special container (do not rinse directly with water to avoid corroding the ground).

Fire risk

If smoke or fire occurs during charging, immediately cut off the main power supply, use a dry powder fire extinguisher (do not use water to put out battery fires, especially lithium batteries). If the fire is out of control, evacuate in time and call 119.

Electric shock first aid

If a person gets an electric shock, immediately disconnect the power supply or use an insulating object (such as a dry wooden stick) to pick off the cable, then perform first aid (cardiopulmonary resuscitation if necessary).

4. Daily maintenance to assist safety

Regularly clean the battery surface and terminals to keep them dry; for lead-acid batteries, check the electrolyte concentration with a hydrometer every 3-6 months.

The charger should be regularly inspected and repaired by professionals to ensure that the cooling fan and protection circuit work normally.

Operators must receive training and be familiar with the characteristics of the battery type used (lead-acid / lithium) and the emergency handling procedures.

Following the above specifications can greatly reduce the charging risks, extend the battery life, and ensure the safety of personnel and equipment. In particular, note that lithium batteries should avoid extrusion and puncture during charging. If the battery bulges, it must be stopped immediately and replaced.