If it can be replaced, please be operated by professionals to avoid danger.
1, the general charging treasure is used 18650 battery cells, there are also lithium polymer battery cells.
2, and mobile phone batteries are 3.7V lithium batteries, can be replaced. Of course, we must consider the volume problem, whether it can be installed.
3, lithium is a very active element, made of battery power density, if improper operation, may lead to short circuit, fire, bulge, explosion and other unsafe factors.
4, capacity: mobile phone battery capacity is relatively small, conventional several hundred mAh to 3000 mAh. The capacity of an 18650 battery cell is about 2500mAh. The lithium polymer battery cell of the charging bank ranges from thousands to 10000mAh. If the mobile phone battery is used, the capacity is small, and multiple batteries can be connected in parallel. Only in parallel, not in series, pay attention to positive and negative polarity.
5, the mobile phone battery package with a protection circuit, this circuit does not need to be removed, can play a protective role. Do not operate without professional knowledge and practical ability to avoid danger.