It’s easy and flexible to build a Navy electric outboard system that satisfies different needs. The battery, control, and charger are excluded so must be chosen and purchased. To provide a one-stop shopping experience, ePropulsion developed different kinds of batteries, controllers, and chargers to work with the Navy outboard motor. You can build a system that best fits your needs in four steps.1. Choose your outboard; Navy 3.0 Evo: 3kW, equivalent to 6HP or Navy 6.0 Evo: 6kW, equivalent to 9.9HP. 2. Choose a control that best fits on your boat from four Evo Controls; Evo Tiller, Top Mount Controller, Side Mount Controller, Dual Remote Controller. 3. Choose your battery; E-Series E60 or E163 LifePO4 Batteries. 4. Purchase your charger(s) =E Battery 30A We recommend you choosing ePropulsion original battery. 48V E-Series lithium iron phosphate battery is the perfect match for your Navy electric outboards; E-Series Battery