Marine Tools / 01

SEEKR Marine Tools

Battery runtime
and range.

A transparent estimate for electric boats, kayaks, USVs and other electric craft—with a practical energy reserve and system losses included.

01Size

Compare batteries and load before building.

02Plan

Keep an energy reserve for the return trip.

03Understand

See the assumptions behind the result.

01 / Your values

Describe your
energy system.

Select a documented motor, then enter realistic battery, throttle and measured-speed values.

Battery

System voltage VCapacity Ah

Battery chemistry

Usable capacity90%Share of rated battery capacity available for use.

Operation

ManufacturerMotor / power class

SELECTED MOTORMinn Kota Terrova 80

System: 24 V
Maximum current: 56.0 A

Open manufacturer source ↗

Throttle50%Conservative linear estimate from documented maximum power or current.Estimated at 50% throttle: 717 W · 28.0 A

Measured speed at this throttle km/h

Speed depends on hull, weight and propeller. Enter a measured value at the same throttle setting.

Planned reserve20%Total efficiency90%Charging current A

02 / Method

Assumptions shown
in the open.

Nominal energy is reduced by usable capacity, reserve and system losses before runtime and range are calculated.

012.56 kWh

Nominal energy

Voltage × ampere-hours.

→

022.30 kWh

Usable battery

Adjusted for chemistry and depth of discharge.

→

0320%

Energy reserve

Kept outside the planned mission.

→

041.66 kWh

Delivered energy

After estimated system losses.

03 / Motor data

Based on published
manufacturer data.

53 verified motor and voltage variants from 4 manufacturers. Always verify against a measured sea trial.

SEEKR Marine Tools

Built from a real
marine engineering project.

Explore SEEKR Ines

Battery runtimeand range.

Describe yourenergy system.

Assumptions shownin the open.