CORE uses a specially designed magnetic USB charging cable.
As CORE is designed to remain waterproof, this charging cable is unique (and is different to common USB cables).
This is a convenient second (back up) charging cable or a replacement cable in the case of damage or loss of the charging cable which is provided with the CORE.
Charging a fully drained CORE takes about 2 hours and CORE (when permanently on and transmitting) will operate for 5 - 6 days on a single charge.
Please note, it is recommended to use a powered USB port. As CORE draws a small current, portable power packs / battery packs may not activate when trying to charge CORE.