ePropulsion NAVY 3.0 Evo, User Manual

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2 Preparations
2.1 Selecting the Battery
It is recommended to use ePropulsion E Series Batteries.
Lithium-based and lead-acid batteries can be used to supply power for NAVY Evo.
Considering the high performance in energy density and discharge ability, lithi-
um-based batteries are more preferable. To ensure that NAVY Evo can work at its full
power continually, the batteries are required to possess over 62.5A(NAVY 3.0 Evo) or
125A(NAVY 6.0 Evo) of continuous discharge current. To ensure at least one hour of
duration, the battery capacity should reach 3000Wh(NAVY 3.0 Evo) or 6000Wh(NAVY
6.0 Evo) or above.
The rated continuous discharge current is affected by the battery type and quantity
of parallel batteries. To use lead-acid batteries, conventional lead-acid or AGM or GEL
batteries are acceptable, while starter batteries are not recommended. Traction bat-
teries or deep cycle batteries are more preferable as they give power over sustained
period of time. Besides, the deep cycle marine batteries are also capable.
Battery capacity is a major factor that affects trip duration and distance. For instance,
a battery with 48V of rated voltage completely discharges at a continuous current
of 125A in 1 hour, so its rated capacity is 6000Wh (125Ah*48V=6000Wh), we also
can say its rated capacity is 125Ah. The maximum power of NAVY 6.0 is 6kW which
means the system can be running at full power for about 1 hour when using this
battery. You can select a battery with proper capacity based on your requirements
for travelling time and distance. Note that the operating time and distance are also
affected by the input power of the outboard plus the external environment and tem-
perature. In addition, boat type and load also play important roles.
Users can connect four 12V batteries in series to make a 48V battery set and use it
to supply power for NAVY 6.0. Users can also enlarge the battery capacity by parallel
configuration.
When using E Series Batteries, the batteries will work well once being correctly
connected. When using non-ePropulsion batteries, before starting the outboard,
users should configure the batteries via the Evo Control System for the first time
use, otherwise the batteries may not work properly.