This is normal. When the water bottle is charged, the water in the electrolyte will be broken down into hydrogen and oxygen, and the hydrogen will escape through the surface of the electrolyte, and it will also take away some water vapor, forming the phenomenon of water. This is because when the water bottle is charged, the water molecules in the electrolyte are decomposed into hydrogen ions and oxygen ions, hydrogen ions gather in the negative electrode, oxygen ions gather in the positive electrode, and hydrogen ions and oxygen ions combine into water molecules, will release energy, which is the process of electrical energy into chemical energy. Therefore, water is a normal phenomenon when the water bottle is charging, do not worry.
Water when charging water bottle is a normal phenomenon, because the electrolyte in the battery will be vaporized when charging, commonly known as \"acid flow\
If the water is very serious, it may be caused by too much charging current or too long charging time, you can appropriately reduce the charging current or shorten the charging time.
Because the air thermal expansion and contraction lead to water discharge, this is normal, do not need to make a fuss, but if the water level is too high, charging water leakage, so attention, because it will make the plate short circuit, resulting in battery damage.