Spektrum SPMXSE1150 Firma 150 - BEC 7.4v or 6v? - documentation discrepancies

[mfish]

I have a Kraton 6S V5 with Spektrum electronics

Per this chart the BEC voltage 6 volts (6 volts, 4 amps) - https://www.spektrumrc.com/ProdInfo/Files/62796_SmartESC_Spec_Chart.pdf
Per this spec sheet the BEC is switchable to 6 volts or 7.4 volts @ 5 amps - https://www.spektrumrc.com/ProdInfo/Files/SPMXSE1150-Programming_Chart.pdf
In the Amazon listing pictures of this product someone took a pic of the back of the box and its says 6v | 5A - https://www.amazon.com/Spektrum-Firma-Brushless-Smart-SPMXSE1150/dp/B07XTGQ1SS#customerReviews

Does anyone know for certain how many volts the BEC on this ESC puts out?

I'm upgrading my servo to a Savox 1210sg and I'd like to feed it 7.4 volts to max it out.

Thanks!

 

[jkflow]

The only reliable info is on the Horizon page:
https://www.horizonhobby.com/product/firma-150a-brushless-smart-esc-3s-6s/SPMXSE1150.html

6V or 7.4V (default) @5A is the spec.

Ignore all the other pages. Yes, this is a mess, and I'm surprised that the Spektrum site is one of the worst on reliable info. Keep in mind that Horizon purchased the Spektrum line, and the old data doesn't get updated a lot.

Personal note: Savox 1210 is one of the worst performers at that price. Go cheap with a DS3235kg from Amazon/ebay (no matter the 'name') or something else.
You will also need to strengthen your servo saver, as all the power will simply be absorbed. Simple c-clips will help but plenty of info on this forum.

 

[morrjr71]

According to the Kraton 6s manual, you can change the BEC output to 7.4 volts. IIRC, I did that to my Kraton when I put in a new higher voltage servo.

 

[Senton_Prime]

I run mine at 7.4 in my exb and my felony!!

 

[mfish]

The only reliable info is on the Horizon page:
https://www.horizonhobby.com/product/firma-150a-brushless-smart-esc-3s-6s/SPMXSE1150.html

6V or 7.4V (default) @5A is the spec.

Ignore all the other pages. Yes, this is a mess, and I'm surprised that the Spektrum site is one of the worst on reliable info. Keep in mind that Horizon purchased the Spektrum line, and the old data doesn't get updated a lot.

Personal note: Savox 1210 is one of the worst performers at that price. Go cheap with a DS3235kg from Amazon/ebay (no matter the 'name') or something else.
You will also need to strengthen your servo saver, as all the power will simply be absorbed. Simple c-clips will help but plenty of info on this forum.

Thanks for the info and confirming the spec. That's good that it does 7.4v.

As far as the servo I appreciate the feedback. Since I was already prepared to spend close to $100 I did some more research and am going to go with a Promodeler servo. Probably this one: https://www.promodeler.com/DS630BLHV It might be overkill but I want something that will last. I'm not a fan of wrenching so want to avoid having to replace the servo multiple times if I can avoid it.

 

[jkflow]

Definitely top shelve and not a bad choice.
I just like to stay cheap for bashers. The community has not seen reliability issues with the DS versions.
It's your rig and your money, and it does add some bling

 

[Mr.Duke]

Thanks for the info and confirming the spec. That's good that it does 7.4v.

As far as the servo I appreciate the feedback. Since I was already prepared to spend close to $100 I did some more research and am going to go with a Promodeler servo. Probably this one: https://www.promodeler.com/DS630BLHV It might be overkill but I want something that will last. I'm not a fan of wrenching so want to avoid having to replace the servo multiple times if I can avoid it.

Hands down the best servo manufacturer on the market.

You won’t be disappointed.