I think the poster uses lithium batteries. First of all, the storage method you mentioned is unscientific: store it with a full charge. The battery should be used up to 50%, then removed and stored in a dry, dark place. In this way, the battery has the lowest self-discharge rate, the longest storage life and is the safest. It is not good to remove lithium batteries and not use them for a long time. It is recommended to charge and discharge the battery once every three months to ensure its activity. I have been engaged in the research and development of lithium batteries in Tianjin for more than three years and hope to help you.
Yes.
In fact, electric vehicles generally suffer from self-discharge. Even if a small battery is not used, it self-discharges 1-2% of its power in a day. It's alsoone of the main reasons why many people leave their electric vehicles at home and lose power. Of course, this is just normal battery self-discharge. If external factors cause self-discharge, it will seriously affect the battery life.
When the battery wires form a bridge with some external bodies, a relatively strong discharge phenomenon is likely to occur, or iron wires, copper wires, etc. will be discharged. are accidentally placed on the battery, damaging The connections of the positive and negative electrodes can also cause discharge.
The electrolytes contained in electric vehicle batteries produced by the usual manufacturers are very pure and contain practically no impurities, so the discharge is very slow and within the normal range. Some electric vehicle batteries discharge very quicklyement. The main reason is that the electrolyte is impure and contains impurities, which creates a certain potential difference, causing the battery to short circuit and consume power.