Ekayak first project

Boats, Jet Skis, Kayaks etc., including hovercrafts
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Ekart   10 mW

10 mW
Posts: 22
Joined: Aug 18 2019 3:13am
Location: Perth West Australia

Ekayak first project

Post by Ekart » Nov 13 2019 9:33am

Hi guys just wanted to show you my first "E" project 2-3 years ago I made up a transom and attached to my Kayak then added a 34lb thrust WaterSnake (shortened the shaft) 5 speed outboard motor. I use two 12v 18Ah batteries in parallel and this gives me a range of about 10km on the river at up to 8knots. I then added a frame as backrest and "Solar shade" above -to charge the batteries whilst in use and parked on the bank, and keeps my head out of the sun also. 2x25 watt fold up panels. I've since added internal cables and Anderson plugs for battery and motor connections along with waterproof panel to display Voltage and running Amps and USB plugs for phone. Recently added Port and Starboard lighting along with flexible "Allround" white light with gooseneck for fishing in the dark.

cheers! :lol:
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methods   10 GW

10 GW
Posts: 4628
Joined: Aug 08 2008 12:08pm
Location: Santa Cruz CA
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Re: Ekayak first project

Post by methods » Nov 13 2019 3:03pm

That is rad.
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Coming from the gas ethos it does not take long to realize the benefits of going electric.

The noise
The vibration
The fumes
The unreliability
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Getting out of the Lead Acid and into Lithium brings whole new levels of satisfaction

The weight
The flat power profile (lack of sag)
The predictability
The reliability
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I have put together various eWaterCraft and all of them centered around brushed 12V trolling motors.

I have run all of these at "over-voltage"
One of the best ways to do this is to use a standard (cheap) 60V golf cart controller. This can take any regular Ebike pack and give you the control needed.

Down around a quarter throttle you can run reliably... all day every day.

Goose the throttle. .. . and you can get the major thrust you need in a pinch. Watch out tho... I have been stranded at sea no fewer than 5 times. Smoke shooting out of wiring, brushes burning up, flat battery...

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Good times.

-methods
Increasing battery voltage and controller current limit will result in a non linear experience

Ekart   10 mW

10 mW
Posts: 22
Joined: Aug 18 2019 3:13am
Location: Perth West Australia

Re: Ekayak first project

Post by Ekart » Nov 14 2019 11:53pm

Yes lithium will be the next step .. and I can also use on my eKart and ebike!! (Other sections in this endless-sphere forum). Lithium would be lighter to carry down to the waters edge also!
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Ekart   10 mW

10 mW
Posts: 22
Joined: Aug 18 2019 3:13am
Location: Perth West Australia

Re: Ekayak first project

Post by Ekart » Nov 15 2019 7:42pm

Thanks methods, just a fun project ... and very handy as I used to paddle up river and then the wind would pick up and nearly kill me to paddle into the headwind back to the car... if you don’t mind me asking ..where did you get your yellow battery packs from? Are they lithium , what voltage/current and what charger do you use? (I have an ebike and EKart on these forums also and looking to change from lead acid). Cheers! :lol:

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