To work with the Ballet tutu, you need to purchase 18650 batteries
Flat-top batteries are recommended, but not required. Make sure the battery is 65 mm long, some batteries may be 2-3 mm longer, and you will not be able to insert the batteries into the holders.
Current: Rated current not less than 10 Amperes! This parameter is the most important! Do not buy batteries designed for flashlights, especially if the current is not indicated on the box.
Recommended capacity: 2500 - 3800 mAh. 3800 mAh is the maximum capacity of this type of battery. If you see 4000 - 9000 mAh — consider that this is a fake capacity.
Where to buy: This type of battery can definitely be purchased in a vape shop, it is better to purchase batteries from well-known brands. Such as: Samsung, LG or Sony
Examples of suitable batteries:
Also, when buying any battery, do not forget to purchase a specialized charger for it. Examples of chargers are shown below:
After you have purchased the necessary batteries, you can start assembling. One mask needs four 18650 batteries.
1) Connect the controller to the mask
2) Insert 18650 type batteries into battery boxes, be careful not to reverse the polarity