1. Check before charging: whether the battery is intact, whether the wiring is intact, and open the air cover.
Do not open or remove the liquid filling plug on the battery
Do not add liquid before or during charging
Smoking, sparks or open flames are strictly prohibited near the battery
The battery cannot be discharged at the same time when charging
Do not put metal tools on the battery while charging
Do not repair the battery while charging
The electrolyte temperature is lower than 55℃ during charging
2. If it is a new battery, cool the electrolyte with a specific gravity of 1.26 to 30°C and inject it into the battery. The injection volume should be 10-20 mm higher than the protective plate. Wait 6 hours until the liquid temperature drops below 35°C. Start charging. The specific gravity of the electrolyte refers to 30℃, and the following formula should be used at different temperatures
Conversion: D30℃=Dt+0.007(t-30℃)
3. During the charging process, the electrolyte temperature should not exceed 55℃, otherwise measures should be taken to reduce the charging current, artificially cool the temperature or suspend charging.
4. When the battery is charged to saturation, the voltage and electrolyte specific gravity will not rise in 2-3 hours, and a lot of bubbles will appear. The electrolyte specific gravity reaches 1.26 and the single cell voltage reaches 2.4V.
5. When the single cell voltage drops to 1.7V, the voltmeter voltage is 41V (driving load), and the electrolysis specific gravity drops to 1.18, it should be charged in time.
6. At the final stage of battery charging, use distilled water or dilute sulfuric acid with a specific gravity of 1.4 to adjust the electrolyte specific gravity to 1.26 and maintain a sufficient height. The voltage and electrolyte specific gravity should be recorded during battery charging. The record will help the maintenance and guarantee analysis of the battery.
7. Keep the battery away from fire and heat sources. After charging, cover the air cap, wipe off the splashed electrolyte, keep the connector clean and dry, and apply petroleum jelly. The battery washing must be lifted away from the car.
8. The battery charging environment must be well ventilated. In particular, the ventilation must be forced to be exhausted around the charging vehicle. The ventilation equipment in the battery charging room must be good, the temperature is not higher than 40℃, and the air circulation can be calculated to avoid the explosion caused by the accumulation of hydrogen-oxygen gas when the battery is charged. The following formula can be used to calculate: Q=0.05×I×N (where Q : Air flow, I: charging current at the end of charging, N: number of battery cells), ensure that the air flow in the charging room is greater than the air flow in the calculation formula.
9. Please refer to the table below for the initial and normal charging data of the battery (if the battery comes with instructions, please operate according to the instructions)
Initial charge Normal charge
Ⅰ Ⅱ Ⅰ Ⅱ
Current (A) Time (h) Current (A) Time (h) Current (A) Time (h) Current (A) Time (h)
45 35-45 26 35-50 62 4-6 31 6-10
The charging time of the first stage can be controlled according to the charging characteristics. When the battery voltage rises above 2.4V, it can be changed to the second stage of charging.
Note: It can be equipped with an automatic charger, and the charging program will automatically charge the battery without overcharging and undercharging.
Battery safety instructions
1. Daily inspection
1. Liquid level
Lower than the rated liquid level will shorten the service life of the battery, and too little electrolyte will cause the battery to heat and damage. Therefore, we must always pay attention to whether the electrolyte is sufficient.
2. Terminal, wire, cover
Always check the connection of the battery terminal and the connection with the wire for corrosion caused by oxidation, and check whether the cover is deformed and whether there is heat.
3. Appearance
Dirty surface of the battery will cause leakage. Keep the surface of the battery clean and dry at any time.
2. Maintenance
1. Add water
Add distilled water according to the specified liquid level. Do not add too much distilled water in order to extend the water interval time. Adding too much water will cause the electrolyte to overflow and cause leakage.
2. Charging
During the charging process, the battery will produce gas. The charging place should be well ventilated and there is no open flame around. At the same time, the oxygen generated during the charging process,
The acid gas will affect the surroundings.
Unplugging the charging plug during charging will cause an arc. Turn off the charger before unplugging the plug.
After charging, a lot of hydrogen will stay around the battery. No open flame is allowed. The cover on the battery should be opened for charging.
3. Maintenance of terminal, wire and cover
Only professional and technical personnel designated by the manufacturer can proceed.
4. Clean
If it is not too dirty, you can wipe it with a damp cloth. If it is very dirty, remove the battery from the car, rinse it with water and let it dry naturally.
3. Safekeeping
1. Storage place
Can't make it short;
A short circuit caused by rain may cause a fire and may produce a small amount of hydrogen. Therefore, the battery must be stored in a ventilated, cool place.
2. Used batteries
The used batteries still have electric energy and should be kept in accordance with the storage method of the batteries used.
Fourth, the operation of electrolyte
1. Check the proportion
Use an inhalation hydrometer to check the specific gravity. Do not spill the electrolyte while working, and wear protective equipment.
2. Operations other than inspection
Consult a professional, especially when replenishing electrolyte (dilute sulfuric acid).
3. The electrolyte leaks
Due to the overturning or damage of the battery, the electrolyte leaks, and emergency treatment should be carried out immediately (refer to emergency treatment items)
5. Operation of end-of-life battery
1. Operation of the end-of-life battery
When the battery is near the end of its life, the electrolyte in the single cell will be reduced very quickly. Distilled water should be added every day.
2. Disposal of used batteries
For used batteries, draw out the electrolyte and decompose the batteries. It can be negotiated whether to be recycled by the battery manufacturer.
Six, emergency treatment
1. Electrolyte splashed on the skin
Rinse with plenty of water
2. The electrolyte is splashed into the eyes
Rinse with plenty of water and receive treatment from a professional doctor
3. Electrolyte spilled on clothes
Take off clothes immediately, rinse with water and then rinse with weak alkaline soap.
4. Leakage of electrolyte
When the electrolyte leaks to the outside, immediately neutralize it with lime, strong carbonated soda or carbonated soda, and rinse with plenty of water.
