Small electric launch / day boat
Light displacement under 1.5 t, short days, simple 48 V system.
What this segment looks like
Why a electric launch is a sensible repower target
Light launches and day boats under 25 ft don't need much power. With 1–1.5 tonnes of displacement and short outings, a 5–8 kW motor and a 5–8 kWh pack delivers 4–5 hours of cruising at 5 kn — and charges off a single overnight standard outlet.
- 48 V is more than enough — no need for the cost or complexity of higher voltage.
- Standard 16 A AC charging refills overnight, no special shore connection.
- Outboard conversions (e.g. ePropulsion, Torqeedo Cruise) are the fastest path.
- Check displacement carefully — many 'small' launches are heavier than they look.
Related sizing guides
A practical guide to choosing 6, 8, 10, 15, or 25 kW for auxiliary electric propulsion—based on boat size, displacement, and target speed.
Everything a boat owner needs to know about lithium iron phosphate batteries — chemistry, sizing, safety, BMS, and installation best practices.
How to size DC cables for electric boat propulsion — voltage drop, cross-section, fusing, and why getting it wrong is expensive.
Different boat?
Size your electric launch now
Wizard pre-filled with realistic defaults for this segment. Free to run; PDF from €29.