Cool! I'm going to try this as well. I've ordered the Spirt solar charger but I'll also pick up the External Battery Cable. Neat steering setup too!

@drez20001

8 ай бұрын

Thanks. It's simple but it works.

Pretty cool setup

@drez20001

10 ай бұрын

Indeed!

Well that's pretty wild!

what battery is that ? could you give more details on the connection?, amazing video sir

Great video! I'm pleasantly surprised that the controller seems to recognize the external battery's larger capacity as it immediately indicated a longer remaining run time!

@drez20001

5 ай бұрын

Thanks. I agree. It was nice and interesting to see.

Thank you for the informative video. I seems clear from your test run that the standard ePropulsion battery is not necessary for the operation of the motor. Your images showed some electronics in the ePropulsion battery case, but I am assuming that this is only the charge controller. If I am mistaken, I would be happy to know. Thanks again.

@ttnyny

7 ай бұрын

P.S. If I were going to use the ePropulsion Spirit 1.0 with an external battery and without the stock battery, I would need to keep the tiller and tiller-based controls. As far as anyone knows, does this change the analysis?

@drez20001

7 ай бұрын

You can use your own battery banks as long as they are between 39 and 60 volts. The tiller head will estimate run times and wattage used but is not as accurate as if you were using the battery that was designed for the motor.

Cool video. Have been considering doing this myself but unsure of which battery to get. What are you using to charge the battery?

@drez20001

8 ай бұрын

Thanks. I bought a good 48v smart charger off Amazon. Cost about $150 or so. Lots of charger options out there.

Hello! Fantastic video🎉 I'm thinking of buying the same battery. It's a problem it says 51,2V but needed voltage is 48V? Regards

@drez20001

20 күн бұрын

Thanks. The ePropulsion motors will run from about 39v to 60v. No problem using 51.2v batteries that will actually in reality charge up to around 54v.

Hi! First of all, great video. Very interesting job! I have tried connecting the charger that came with the original battery to the two plus and minus pins on the motor connector plug. Strangely the motor doesnt start. I am wondering if those four smaller pins somehow play a part in this mystery? Keep up the inspiring work! /Deniz

@drez20001

7 күн бұрын

Thanks for your comments. Very appreciated. The charger will produce enough voltage but can't supply the needed amps to make the motor run.

@denizaltinezer1440

6 күн бұрын

@@drez20001 the reason the motor wasnt starting is most likely because it has a fault. Showing the E21 error code. I will try again when the motor is fixed and working again.

How does the controller calculate the runtime if it doesn’t know the external battery capacity? Or did you program it somehow? Also 20% usage after one hour of full throttle can’t be right, like you said the original battery gets about 1 hour total (which is what I also get on mine, would I go full throttle all the time). I mostly do around 300 Watts which gives plenty of runtime, but I’m really interested in using another external battery like yours.

@jxdigital

2 ай бұрын

I just figured out the Spirit 1.0 EVO model has a different tiller menu, with the option to set the battery capacity. I have the 1.0 Plus (same as yours), which doesn't have this option (while the manual says it's no problem to use a larger external battery, like you did). So I wonder how you changed this setting?

Your external battery costs much less than what Epropulsion offers, even with the purchase of a cable and charger. I want to extend the range of the Spirit Plus on my sailboat. Thanks for posting your experiment. I've seen 48 volt lithium batteries, 20 amp hours, and wonder if they would also work. Lighter, easier to haul up and down dock ladders. They're designed for e-bicycles, I think.

@drez20001

5 ай бұрын

Indeed. It's not necessary to buy the proprietary battery unless the form factor is important. A boat with some storage capacity could easily carry enough battery for long run times. The sailboats I used to have would have worked very well with this little motor and a couple LifePo4s in the hold.

How heavy is the boat you are pushing?

@drez20001

8 ай бұрын

The boat is a 1967 Glastron Futura. Weighs about 500 pounds empty.