Ul-1 esc and SV27 motor

[Brushless55]

Probably because the SV27 ESC is 45 Amps and No Low Voltage Cutoff and the
UL-1 ESC is 60 Amps and has LVC. Regards
Norman
PS. SV27 ESC is designed for Nicd/nimh Batteries

The SV esc works just fine with lipo batteries...

[longballlumber]

LVC or not... I would not recommend anyone to continually run there LiPo's down to the LVC. You should be timing your runs and bringing the boat in BEFORE you hit the LVC.

It increases the life of the LiPo's
It decreases heat in the entire system
It decreases the chance of swelling lipos which can lead to a fire

Just my $.02. You guys make the choice...

Later

[Norman2]

SV27Motor/UL-1 ESC

Hi, Thanks for your input, I am new to lipos. Would you consider a 5 minute run
time OK. with 2X2S1P25c 5000MAH on a 29"Titan Mono with X640 prop.
Thanks
Norman

[D. Newland]

Keep your runtime to 3 minutes until you have a good handle on your amp draw and cell/motor/esc heat.

After you know this info, you can adjust your runtime, but 5 minutes will not happen with that setup. 4 minutes may be do-able. My LSO race setup is a BBY Patriot 28" mono, UL-1 motor and ESC, X642 d/t, 4950 mah 28c Marinepowers and 4 min's is it.

[Brushless55]

LVC or not... I would not recommend anyone to continually run there LiPo's down to the LVC. You should be timing your runs and bringing the boat in BEFORE you hit the LVC.

It increases the life of the LiPo's
It decreases heat in the entire system
It decreases the chance of swelling lipos which can lead to a fire

Just my $.02. You guys make the choice...

Later

I've ran my UL-1 till the lvc kicked in and now I think I have a hurt lipo..

[Norman2]

Keep your runtime to 3 minutes until you have a good handle on your amp draw and cell/motor/esc heat.

After you know this info, you can adjust your runtime, but 5 minutes will not happen with that setup. 4 minutes may be do-able. My LSO race setup is a BBY Patriot 28" mono, UL-1 motor and ESC, X642 d/t, 4950 mah 28c Marinepowers and 4 min's is it.

Hi, Thanks, Will try four minutes and if need to will go down to three. I wonder
what batteries would I need to get to 5 minutes comfortably. Thanks again for
your help.
Norman

[D. Newland]

Do 3 minutes first, then work you way into 4 minutes.

Here's the math: That setup is +/- 60 amps on average. Therefore, you are burning 1000 mah's every minute of runtime.

If you want a 5 minutes AND your setup is confirmed 60 amps on average, then you need cells that can comfortably put out 5000 mah's. So, you really need a 6000 mah (Poly RC) or 6500 mah (Neu energy) cell to do it. I'd favor the Neu's as they are the latest generation cells.

[ozboater]

as a relative newb who is looking to jump to lipos soon, there is some real good info here !!

cheers

[Norman2]

Hi OZ Boater, Man it was so easy with brushed motors and NIMH Batteries, but
progress is needed. Quite a change, Regards
Norman

[Brushless55]

Do 3 minutes first, then work you way into 4 minutes.

Here's the math: That setup is +/- 60 amps on average. Therefore, you are burning 1000 mah's every minute of runtime.

If you want a 5 minutes AND your setup is confirmed 60 amps on average, then you need cells that can comfortably put out 5000 mah's. So, you really need a 6000 mah (Poly RC) or 6500 mah (Neu energy) cell to do it. I'd favor the Neu's as they are the latest generation cells.

possibly going with some 4s 3000-3500mah packs in parallel ?

[Steven Vaccaro]

I am now really confused, what was wrong with the original SV27 ESC and motor combination ??

Douggie

"looking for a lipo ready ul-1 esc "

[D. Newland]

You can parallel your way to 6000 or 6500 as well. I favor going 1P on the spec classes because the cells will then be flatter...and the weight will be lower in the hull. Probably means and amounts to nothing; just one of my quirks.

[Brushless55]

possibly going with some 4s 3000-3500mah packs in parallel ?

Kinda like this???

[Norman2]

You can parallel your way to 6000 or 6500 as well. I favor going 1P on the spec classes because the cells will then be flatter...and the weight will be lower in the hull. Probably means and amounts to nothing; just one of my quirks.

Hi Newland, Just came back from the lake running my Titan 29 and was able to get
3 1/2 minutes and everything seems OK. I think probably could have gone 4 min.
but wanted to make sure how much it discharged. One of my friends was running
another Titan with UL-1 Motor/Esc and he was using a new SMC 2S1P 7.4 lipo with
8000 MAH repeat 8000 MAH and he ran almost 8 minutes. He got them at a Local
Hobby Shop in Easly, SC which is about 2 hours from where I live. Will have to check
this out. If they are available I will get two and be a happy man. Again Thanks
Norman

[Brushless55]

can the SV motor take 5s or 6s like the BJ26 motor can?