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Batteries
The drive operates on 48 Volts. Ensure the use of a battery pack suitable for this application in
terms of quality and capacity. Use traction, semi-traction-deep cycle, or lithium batteries that meet
the specifications.
WARNING! In case of doubt about the specifications of lithium batteries, it is advisable to
consult with WaterWorld. It is possible that the batteries may damage the motor, or vice
versa, if they are not mutually compatible.
Place the batteries in the boat in such a way that:
a. the weight is evenly distributed, and the boat sits level on the waterline
b. the batteries cannot slide within the boat after installation
c. the batteries are accessible for connecting cables and for future servicing
d. the batteries do not obstruct daily use of the boat
wiring to the motor and the charger is feasible without unnecessary cable length
Check the individual voltage of each battery and ensure that they are within 0.1 Volt of each other
before interconnecting the batteries. If this is not the case, all batteries should be individually fully
charged first.
Connect the batteries according to the applicable diagram.
Below are examples for 4 x 12 Volt batteries in series and 8 x 6 Volt batteries in series.
1.
2.
3.
4.
Connect to 12 Volt batteries
Connect to 6 Volt batteries
WARNING! Wait with connecting the batteries to the rest of the system until everything is
connected and has been tested for any short circuits.
Battery charger
The battery charger must be selected based on the
battery pack and be suitable in terms of voltage,
charging capacity in amperes, battery type, and
usage in a boat.
WARNING! When placing the charger, carefully
consider the same factors as with the motor
and batteries. Moisture, accessibility, wiring,
ventilation, etc.
Recommended cable thicknesses
Waterworld 4.0: up to 4.4 kW power consumption, max. 92 Amperes.
For a 4.0, a cable thickness of 35 mm² is recommended.
Waterworld 7.5: up to 8.25 kW power consumption, max. 172 Amperes.
For a 7.5, a cable thickness of 50 mm² is recommended.
Waterworld 10.0: up to 11 kW power consumption, max. 230 Amperes.
For the 10.0, a cable thickness of 70mm² is recommended.
WaterWorld 20.0: up to 22 kW power consumption, max 450 Amperes.
For the 15.0, a cable thickness of 95-120 mm² is recommended.
The above data is based on cable lengths up to 5 meters. For further advice on shorter and longer
lengths, consult the table below.
WARNING! Ensure that there is never voltage on the system during the installation and mounting
process!
Cable
Cable
L(+) + L(-)
up to 5 meters
L(+) + L(-)
up to 10
meters
L(+) + L(-)
up to 15
meters
L(+) + L(-)
up to 20
meters
Diameter
Section
mm
mm
2
I max A
I max A
I max A
I max A
0.98
0.75
2.3
1.1
0.8
0.6
1.38
1.5
4.5
2.3
1.5
1.1
1.78
2.5
7.5
3.8
2.5
1.9
2.26
4
12
6
4
3
2.76
6
18
9
6
5
3.57
10
30
15
10
8
4.51
16
48
24
16
12
5.64
25
75
38
25
19
6.68
35
105
53
35
26
7.98
50
150
75
50
38
9.44
70
210
105
70
53
11.00
95
285
143
95
71
12.36
120
360
180
120
90
WARNING! When determining the correct cable thickness, consideration must be given to the
voltage loss across the battery cable. This voltage loss should not exceed 0.26 volts, including
cable shoe connections. The total length of both the positive and negative pole cables must be
taken into account.
Main power
Fuse
Connect to 12 Volt batteries
Main power
-
+
12v
12v
12v
12v
Connect to 6 Volt batteries
Fuse
Main power
Main power
-
+
6v
6v
6v
6v
6v
6v
6v
6v