Boat Box System is a French start-up which has been developing since November 2017 hardened lithium batteries for use in electric motors and boat sounders.
The autonomy of the Boat Box System batteries is just bluffing! They allow you hours of navigation without the slightest recharge. A technological feat that deserves to be highlighted, in addition to neat design of the boxes including a screen indicating the voltage, the remaining autonomy and the internal temperature of the battery.
More and more used by fishermen, Boat Box System batteries are also tested by Navicom on engines Minn Kota.