18650 Single Battery Case An 18650 Single Battery Case is an essential accessory to have if you plan on carrying a battery separate from your device. If you are travelling around and want to keep a battery separate, we recommend ensuring you have it in a plastic safety case. Batteries must always be in a case when not in use for personal safety reasons. Batteries should never be allowed to touch metal objects like coins or keys or it could cause the battery to discharge. Grab yourself an 18650 battery case today so you can travel safe to and fro! Check out other impressive battery accessories here. Check out Soshine (manufacturers) website for more details on the company.