When we use lithium-iron batteries, we may encounter a situation where we cannot charge the lithium-iron batteries. There are various reasons for this situation. It may be the problem of lithium-iron battery or other problems. First of all, we should understand what can affect lithium-iron battery charging.
1. Lithium-iron batteries are overcharged and discharged, and lithium-iron batteries are overcooled or overheated, both of which will cause the battery management system to control the circuit on and off in time to ensure the safety of lithium-iron batteries. At this time, lithium-iron batteries can not be charged.
2. Lithium-iron battery aging. When lithium-iron batteries are used for a long time, the internal chemicals will fail, resulting in a decrease in the capacity of lithium-iron batteries and a decrease in the charging efficiency, which leads to lithium-iron batteries that can’t be fully charged or can’t be charged.
3. Whether the charger is paired with the LiFePO4 battery, different types of batteries and chargers may use different voltage and current standards, then it will not be able to charge the LiFePO4 battery.
4. The charger or charging connection device is faulty. As we charge the cell phone, if the charger is broken, it will not be able to charge the cell phone.
1.1 Problems with the charging cable. Check the charging cable carefully and observe if there are any damaged or cracked places. If there are cracked places, you need to replace the charging cable promptly. Even if there isn’t, you can’t rule it out quickly, you can charge it to other matching appliances, if it can’t charge up, it means the charging cable is the problem. If it can charge, you can rule out the possibility of a damaged charging cable.
1.2 Charging port. Carefully check whether there are dust particles at the charging port of the lithium-iron battery. You can go to clean it appropriately. First, you need to disconnect the lithium-iron battery to prevent unnecessary danger.
1.3 Whether the connection between the charging cable and the lithium-iron battery is loose. This is also the same reason as our cell phone charging, if the connection between the charging cable and the lithium-iron battery is loose, then naturally it can’t be charged. Re-insert, observe whether it can be charged, if people can not charge, then you can rule out whether the charging cable is loose.
1.4 Whether the battery terminals are corroded. If the battery terminals (the parts that connect the lithium-iron battery to the external conductor) are corroded, then the lithium-iron battery can’t be charged either. You can remove the corrosion by the following methods.
1.41 Sanding with fine sandpaper. Remove the terminals and sand them using fine sandpaper until a bright shine appears.
1.42 Remove copper sulfate using aqueous baking soda solution.
1.43 Check whether by the phenomenon of night leakage, and timely repair.
In normal times, you can also prevent corrosion by applying antioxidants, avoiding humid environments and checking the battery regularly.
If after removing the corrosion, it still can’t be charged, it may be caused by other reasons.
Different chargers have different charging voltages. It may be because your existing charger can’t pair with a freshly installed LiFePO4 battery. Lithium-iron batteries charge faster in direct relation to their higher charging voltage. You have the option of upgrading your charger to regulate the voltage to match the LiFePO4 battery. If you can charge the LiFePO4 battery after adjusting it, then it is indeed the charger’s problem. If it still can’t, it could be something else.
The environment in which the LiFePO4 battery is located changes all the time, sometimes the temperature may be too high, sometimes the temperature is too low, especially in the low temperature condition, the performance of LiPo battery will decline, which will seriously affect the life of LiPo battery. However, the battery management system in the lithium battery can cut off the circuit in low and high temperature conditions to protect the performance of lithium-iron battery.
When lithium-iron batteries are overcharged or discharged, it will lead to a reduction in battery capacity and life. At this time, the battery management system also cuts off the circuit, thus safeguarding the performance of lithium-iron batteries.
So, you can check if the lithium-iron battery has activated the battery management system. If it is on, then you need to take action to avoid overcharging, overdischarging or low and high temperatures so that the battery management system will turn off automatically.
If all of the above are ruled out, we need to start with the lifespan of the LiFePO4 battery. Lithium-iron battery life is usually about 5 to 11 years, if the use of time more than its life, then lithium-iron batteries can not charge the reason is most likely caused by battery aging. At this point, consider purchasing a new lithium-iron battery or swapping in a spare lithium-iron battery to make it work. If it can be charged, then it is indeed due to the aging of the lithium-iron battery.
These are some of the common reasons why lithium-iron batteries fail to charge. The list is made by going from simple to complex and from direct to indirect. By practicing in the above order, I believe you can pinpoint the exact reason why lithium-iron batteries can’t be charged. If none of the above methods work, you can contact the relevant people for advice as well as for help.
