Trolling motors are not designed for heavy duty. They are designed for low price, keep this in mind.
seandepagnier, relatively small props at sailboats is a result of compromises: large bronze porp is too heavy, large carbon prop is lightweight...
Hi seandepagnier, Thanks for sharing your experience with us! I know large prop have better efficiency than smaller one, but monohull shape do not...
Thanks! Working now on batteries install in a boat.
Let me introduce our new just finished sailboat batteries ) Specs: 30V (8s) 235 Ah each of two modules. Module weight with case: 40 kg BMS with...
[MEDIA] Official video from "Interparus" company about this boat. Voice language is russian, but you may turn on subtitle translation. Enjoy...
Dejay, thanks! Motor controller support regeneration, but for such small boat regeneration can give very small amount of energy, like 50W at 5...
Thanks! Yep, it may work as full solar boat, but boat owner don't want to remove sails. This is first boat I converted to electric drive except...
[MEDIA] Video from drone
Run at 1.8 kW video: [MEDIA] Boat and drive specs: 3 kW electric motor QS 138 Kelly controller KLS 6022H 36V 180Ah Lithium battery, battery topic...
Hi Bertil, where do you want to get long and straight shaft? If lenght is about 2+ meters you need not usual turning lathe to make such shaft. You...
Forgot to mention - Torqeedo company use lithium modules from BMW i3 (Li NMC) with same chemistry for use at water. Battery Technology - Torqeedo...
Li NMC cells is used at these electric cars: Nissan Leaf, Chevy Volt/Bolt, BMW i3 and others. It is most used li ion chemistry for EV starting...
Hi Bert, this is another type of batteries - Li NMC
Checked the battery inside after a year of use. Looks ok.
Hi BertKu, I produce such batteries for my country customers currently. It is a: module + IP68 case + BMS + contactor 450A. Also I plan to try...
I purchased a EV Bolt battery module (10 cells connected in serial or 36V mid charge, 180Ah) from China for ~800 USD plus delivery. BMS, case and...
Why I need to calculate capacity if I have wattmeter attached? Current may change sligthly, not 40A exactly during discharge. Voltage will drop...
It was nichrome wire spiral with big cooling fan. Wires connected to load and to battery was 6 mm². Current measured by wattmeter with external shunt
Discharge range 54.6V -> 35.75V, discharge current was 40A