How to use the rechargeable air pump
Can it be used when charging?——It cannot be used when charging, because the charging voltage is higher than the voltage of the battery, which will damage the light.
Does it have to be charged when the battery is fully used up?
——It depends on what kind of rechargeable battery is used in the lamp. The battery should be charged as needed, and it cannot be under-charged or over-charged. Nickel-cadmium and nickel-metal hydride batteries should be used up and recharged, otherwise there will be a memory effect. There are no special requirements for lithium batteries, but it is best to recharge them after use, otherwise it will affect the life.