How do I charge the battery? Does it need to be connected to a Spirit electric outboard to charge?

The Spirit battery does not need to be connected to a Spirit outboard in order to charge. You can charge your battery with a regular 110V outlet using the standard charger or fast charger. A standard charger is included with the Spirit 1.0 Plus or Evo electric outboard.

The Spirit battery can also be charged with a solar panel (such as the foldable 180W solar panel) using a solar charge controller, or with a 12 volt charger.