Charging the hand warmer
Ensure the hand warmer is switched off during charging. Charge using supplied USB lead from any USB port, computer or laptop mains USB charger. During charge the lights will flash, continue charging until all four orange lights are constant. Charge times will vary depending on the method of charging, allow 2-3 hours from mains USB charger and up to 6hrs from a computer USB port.
Operating the hand warmer
Turn on and off by pressing and holding the ON/OFF button for 5 seconds. The hand warmer will heat up in less than ten seconds. Push the ON/OFF button again to go to a higher heat setting or reduce the heat by continuing to press the ON/OFF button.
1 light, heating temperature 42+/-2 degree
2 light, heating temperature 45+/-2 degree
3 light, heating temperature 48+/-2 degree
4 light, heating temperature 50+/-2 degree
Power Bank function
Ensure the hand warmer is switched off then plug your appliance USB lead into your hand warmer (2A Max output charge), charging will commence immediately. The appropriate number of indicator lights will show indicating the level of charge remaining within the battery.