Multi-functional portable charger and smart maintainer with Adaptive Boost technology

Enjoy Award-winning functionality

  • Internal battery, when fully charged, holds up to a year.
  • Fully automatic user interface with easy-to-read display.
  • USB-C and USB-A outputs for charging mobile devices.
  • No modes to select. Simply connect and the CS FREE will do the rest.
  • LED displays indicate when you can start your boat.
  • Countdown display shows when your battery is fully charged.
  • Ergonomic design with a durable, all-weather case.
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