Epropulsion Navy6 regeneration for third party batteries.

[Cosmic]

Hi all, I'm converting an 11 meter performance sailing catamaran to solar electric using two Navy6 Epropulsion outboards. These outboards have the ability to generate hydro power to charge the batteries while under sail. It is not a lot of power but if it's available so why not use it. Epropulsion have set these motors up so they will only charge Epropulsion batteries. My question is, has anyone managed to charge third party batteries using Epropulsion motors and how was this achieved? Cheers.

 

[jdege]

How many boats that are small enough to push with a outboard can reach 10 knots under sail?

 

[yabert]

How many boats that are small enough to push with a outboard can reach 10 knots under sail?

Many. Simply that they reach 10 knot under sail and 4 know at motor

Sorry Cosmic, I don't know how to hack Epropultion, but why don't use other brand like Torqeedo or other: https://plugboats.com/electric-outboards-more-than-5kw/

 

[skyking1]

As a sailor, my life thrill is to get as much speed under sail as I can. A cat does that, but the idea of dragging a couple of generator heads in the water makes me throw up a little bit.
EDIT: I see where it could be useful in heavy wind conditions.

 

[jdege]

Many. Simply that they reach 10 knot under sail and 4 know at motor

Sorry Cosmic, I don't know how to hack Epropultion, but why don't use other brand like Torqeedo or other: https://plugboats.com/electric-outboards-more-than-5kw/

A 10 knot hull speed needs a waterline length of 42 feet.

And you aren't going to push a 45+ foot boat very fast with a 6hp outboard.

 

[yabert]

And you aren't going to push a 45+ foot boat very fast with a 6hp outboard.

Cat can be different beast.
Just as reference, I push my Beneteau 38' at 3 knot with only 1kW.
Also, report from Silent Yachts 55 (32 tons Cat) point out 4.4 knot with 5 kW: https://diysolarforum.com/threads/wetdream-solar-100-electric-catamaran.90518/post-1203156

 

[yabert]

Epropulsion have set these motors up so they will only charge Epropulsion batteries.

BTW, I hate them just for that and can't suggest them for same reason.

 

[Armorer266]

Without looking into this as i live in a desert, why can't you just buy the smallest battery they have and splice into the Anderson plug and make the banks bigger? I get that there is some comms between the battery and motor but amps are amps so if you divert the juice why won't that work?

Maybe it's checking on both ends power leaving the "generator" to battery... but that would be some sophisticated electronics for what reason and probably could be hacked. I doubt it's checking nothing more than voltage on both end to know when to stop.

 

[Cosmic]

Many. Simply that they reach 10 knot under sail and 4 know at motor

Sorry Cosmic, I don't know how to hack Epropultion, but why don't use other brand like Torqeedo or other: https://plugboats.com/electric-outboards-more-than-5kw/

I like that the motor is under water to reduce noise. I also like that I can use any brand of battery but yep, really annoying the regen is locked out.

 

[Cosmic]

Without looking into this as i live in a desert, why can't you just buy the smallest battery they have and splice into the Anderson plug and make the banks bigger? I get that there is some comms between the battery and motor but amps are amps so if you divert the juice why won't that work?

Maybe it's checking on both ends power leaving the "generator" to battery... but that would be some sophisticated electronics for what reason and probably could be hacked. I doubt it's checking nothing more than voltage on both end to know when to stop.

Yes, this has been suggested that it only takes one of their batteries to trick the regen. I'm yet to hear from anyone that has tried this sucessfully but it's on the radar. How can it be any different from say a wind generator?

 

[Cosmic]

How many boats that are small enough to push with a outboard can reach 10 knots under sail?

Cats are capable of quite high speeds. Mine has been raced in the past and reportedly reached over 20 knots.

 

[Cosmic]

As a sailor, my life thrill is to get as much speed under sail as I can. A cat does that, but the idea of dragging a couple of generator heads in the water makes me throw up a little bit.
EDIT: I see where it could be useful in heavy wind conditions.

Yep, I bought a fast cat not a huge floating solar panel rack. I do not have room for or like the idea of lots of panels. The idea would be to only lower the motors when absolutely necessary. The outboards lift clear of the water when sailing.

 

[skyking1]

I want to build a woods design boat. He has created severat cool boats.

 

[Cosmic]

I want to build a woods design boat. He has created severat cool boats.

Schionning have some fast cats, mine is 20 years old....

 

[skyking1]

that's lovely
I am building our retirement home, then a shop, then I will set about building some other things for fun. A cat is on the list.
quite possibly a Skua