Spotlight cam one port drains quick

Hi, I recently purchased a Spotlight cam battery, I then got a second battery due to one port, the battery slot 1, draining the battery rather quickly. I charged a battery to 85% and then in the space of 8~hrs it has now drained to 10%, this was the case for the other battery, I swapped them to see if it was the battery or the port, turns out it’s the port. Is there anything I can do?