Recently, news media have exposed several incidents of power banks exploding and spontaneously combusting, causing widespread panic and making power bank safety a major concern for consumers. However, the quality of power banks on the market varies greatly, and inferior power banks have become a ticking time bomb. So, how can we prevent power banks from exploding and spontaneously combusting?
1. Brand identification
2. Check user reviews
3. If the outer casing is found to be cracked, bulging, or smoking during use, stop using it immediately.
4. Do not disassemble, drop, or puncture.
Many consumers believe that the main cause of power bank explosions and spontaneous combustion is the type of battery cell. However, this is not the case. In the current lithium battery industry, the probability of a power bank exploding and spontaneously combusting due to the battery cell itself is very low. So what are the main causes of power bank explosions and spontaneous combustion? It is actually external conditions, such as high temperature and humidity, external impact, overcharging, and over-discharging.
How can we use power banks correctly to avoid explosions and spontaneous combustion?
First, it's best to buy genuine power banks. Power banks can be used at temperatures up to around 60 degrees Celsius. While they won't explode at this temperature, excessive heat can damage the lithium battery, potentially causing it to catch fire. Additionally, prolonged charging can lead to a short circuit inside the battery, which may explode under high temperature and pressure. This is more common with inferior power banks. Therefore, consumers are advised to verify the authenticity of the lithium battery before purchasing a power bank.
Secondly, don't wait until your phone's battery is completely drained before charging it. When the lithium battery of the device being charged is low, charging it through a power bank will cause the power bank to discharge under a high-power constant current output. This will lead to an increase in charging current, generating more heat and consuming more power, which will damage both the phone and the power bank.
