The reason and solution of zero voltage (low voltage) in battery

1) Whether the battery has suffered an external short circuit or over-discharge or reverse charge (reversely connect the positive and negative poles of the battery or the positive and negative poles of the charger, the battery is equivalent to forced over-discharge when charging); whether the electrical circuit is normal; the spot-welded battery Is there a trace of burnt? 2) Whether the battery is continuously overcharged by high rate and high current, which causes the battery core to expand, and the internal positive and negative electrodes are directly contacted and short-circuited. Solution: 1) Know the detailed usage of the customer’s battery; 2) Recharge the battery of the same model and connect it to the electrical appliance to determine whether the electrical appliance is normal; 3) Charge the battery with 1C current for 30 minutes and leave it in an open circuit for about 10 minutes. If the open circuit voltage of the battery is stable within the normal voltage range of the battery, the battery can basically return to normal. If the battery has been damaged, the voltage cannot be restored; if the battery is not used and this phenomenon occurs, the 1C charging voltage cannot be restored, and further decomposition by professional and technical personnel is required. 4) Customers can be suggested to choose batteries with protective electronic components such as fuse, temperature switch, or integrated circuit (in the case of overcurrent charging and discharging and short circuit, overcharging, overdischarging, and reverse charging, the circuit will be disconnected to protect the battery from damage). 5) Customers are advised to pay attention to the spot welding current and the distance between the welding pins. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the performance characteristics of solar lithium batteries?