Burst Power System The very latest in heated glove technology, the groundbreaking Burst Power feature revolutionises the heating process of these gloves. Keep an eye on battery use on the go with a quick glance. The convenient on/off switch allows you to see the Burst Power in action. The Burst Power starts automatically after the first 5 minutes of use, switching itself on and off in 5 second intervals. This maintains the temperature without continuously draining the battery, dramatically improving battery life.