If you are ever expecting to go more than a month without riding your board, there are a few board storage practices we like to recommend to make sure it is ready to roll when you are!
Store your board at mild temperatures. Never leave your board in extreme cold or heat for prolonged periods of time or where it will be exposed to the elements. Whenever you are storing your board for long periods, be sure to drain the board down to 40-50%. If possible, every month or so check the battery and see if it is no longer within that range. If so, charge the board up to full, and before storing again, run the board back down to 40-50%.
All of these will help keep your battery and Onewheel in good health long term!