Add ice once and use continuously without extra battery for about 1.5 hours.
If you open it for 2 minutes and stop for 2-3 minutes, you can use it for about 3 hours.
It can be powered by a 5V to 12V power, compatible with a universal powerbank, which is lightweight, large-capacity, safe, and easy to access. A 5000mAh power bank can allow it to work continuously for 3 to 3.5 hours, and a 10,000mAh one can let the vest provide coolness continuously for about 6.5 hours.
- Easy to use
- Wide application