Lead-acid battery overcharge heat how to do

Time：2025-03-03 11:56:27

Browse：79

In recent years, with the popularity of electric forklifts, warehousing and logistics equipment and new energy low-speed vehicles, lead-acid batteries are widely used as core power sources.

In recent years, with the popularity of electric forklifts, warehousing and logistics equipment and new energy low-speed vehicles, lead-acid batteries are widely used as core power sources. However, due to improper operation, equipment aging or environmental factors, the battery overcharge heating problem is frequent, which becomes an important hidden danger threatening the safety of equipment and user property. According to the statistics of the China Battery Industry Association, in 2023, the safety accidents caused by overcharging of batteries accounted for 28%, most of which can be avoided through standardized operation.

Harm and cause of overcharge heating

1. Direct hazards:

●Sudden drop in battery life: continuous high temperature accelerated plate vulcanization, capacity loss of up to 50%;
●Leakage and bulge: electrolyte evaporation leads to shell expansion, acid leakage corrosion equipment;
●Fire risk: In extreme cases, internal short circuits may cause combustion or even explosion.

2. Analysis of common causes:

●Charging equipment defects: old chargers lack temperature monitoring and automatic power off functions;
●Human negligence: unattended charging for a long time (such as continuous charging for more than 10 hours at night);
●Ambient temperature is out of control: Charging in high temperature workshops or confined Spaces exacerbates heat accumulation.

Three-step emergency solution

Step 1: Cut off the power immediately

●When the battery is found to be abnormally hot, quickly remove the charging plug, and do not move or disassemble the battery with electricity;
●If the battery is seriously bulging, wear protective gloves to avoid contact with leaking acid.

Step 2: Scientific cooling and isolation

●Transfer the battery to a cool and ventilated place and wipe the acid stains on the surface with a dry cloth;
●No splashing! Small fan can be used to assist heat dissipation, and the temperature drops below 40 ° C before processing;
●Isolate the surrounding flammable materials and ensure that there are no open flames or electronic devices within 3 meters.

Step 3: Professional testing and repair

●Use a multimeter to check the voltage: If the 12V battery voltage is lower than 8V or fluctuates severely, disable the battery immediately.
●Contact technical personnel to carry explosion-proof detection equipment on-site assessment;
●Minor overcharge can be repaired (such as replacing the safety valve), serious damage is recommended to replace the old.

Long-term preventive measures: Eliminate risk at source

1. Equipment upgrade: Intelligent protection system

●Intelligent charging pile: equipped with temperature sensor chip, the battery temperature exceeds 45℃ automatic power off, suitable for Toyota, Linde and other mainstream forklift brands;
●Explosion-proof battery box: flame-retardant PP material + pressure relief valve design to reduce the risk of leakage and diffusion.

2. Operation specification: enterprise must do the list

●Formulate the "Charge responsible Person system" and record the battery status when changing shifts;
●Under high temperature environment (> 35℃), the charging time is reduced to 80% of the standard value;
●Use the battery internal resistance tester every month to check for potential hazards.

Act now to keep safe！

Statement: The articles on this site are written by the GSGT team or reprinted from other media or compiled by AI.No reproduction without permission.For copyright or other issues, please contact:gsgtpower@163.com.

News

Lead-acid battery overcharge heat how to do

Lead-acid battery 3PzS345 Specification - adapted to Jungheinrich ERE120 electric pallet truck

48V Linde forklift E18 24-6PZS630 forklift battery

3HPZS240L LinDE Battery L12AC 1.2T ideal power source for stackers

3EPzS420 48V 420Ah with LinDE R14 forward forklift battery