Before use, please note if there is already gas in the inner tube

There are 2 cases as below：
1. Inflating a hollow inner tube: first connect the pump to the inner tube valve and then start the pump to inflate the inner tube.
2. Replenishment of an inner tube that already contains air: start the pump first, switch on the inflation mode and finally connect the pump to the inner tube valve to inflate it.

Please use the original charging cable when charging