AtEscapa, we have all the products you need to control your body and performance on the bike.
The Core Body Temperature Sensor uses a specially designed magnetic USB charging cable.
This is a handy second (spare) charging cable or a replacement cable in case the charging cable supplied with the Core is damaged or lost. Charging a fully discharged Core takes about 2 hours, and the Core (when continuously powered on and transmitting) will operate for 5 to 6 days on a single charge.
Please note that it is recommended to use a powered USB port. Since the Core draws very little current, portable power banks may not activate when you try to charge the Core.