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> Speed Controllers > All Speed Controllers
> Speed Controllers > HobbyKing ESC
> Speed Controllers > 20 to 39 Amp


Hobbyking SS Series 25-30A ESC

Hobbyking SS Series 25-30A ESC

The Hobbyking SS series comes with a limited range of programming functions and are designed to be plug-n-play.

A perfect ESC for those looking for something simple to use and economic.
mosFET rating on this ESC is around 34A, however we suggest you keep current to no more than 30A, as you should with any ESC.

Weight: 22g
Size: 24x52x6mm
Cells: 2-3S (Auto Detect)
Max Current: 25A
Motor type: Brushless
Burst: 30A


Weight: 45g
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Price  $7.70

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 Customer rated
Total of 375 discussions.
athos  96 points - 2/24/2015
This card can code ESC HOBBY KING ss 25-30Apm, thank you in advance Cet card peux code ESC HOBBY KING ss 25-30Apm, merci d'avance Cordialement raymond
Jason  5 points - 2/12/2015
Does this ESC include connectors, if so what connectors does it have?
 Wazza_99 1220 points
They come barebone. No connectors. Usually folks use 3.5mm bullets on these.
Justin  9 points - 2/7/2015
Hey can anyone tell me what the bec wire color is? I need to cut it off cuz im using them on a naza lite multi rotor controller. Thanks!
 GODLESS-FLYER 40 points
It's the red one. Cheers
 hector 1 points
I'm new to this why do you have to cut a wire what happens if you dont
 Justin 9 points
 GODLESS-FLYER 40 points
Hi Hector! I'll be glad to help on this. The Naza flight controllers have an external BEC, in more simpler way- it means that there is an external power supply to the controller. Like you know ESCs also supply positive power (except OPTO ESC), therefore it is always considered good to remove RED color wire from ESCs to prevent any type of short-circuit in the FC (Flight Controller). Reason is simple- FC is already getting its power from external source (external BEC) and therefore it doesn't need any other positive input. Even if you don't remove the RED wire- it's nothing like that you will mess up. But I would suggest doing this. TIP: Do not cut the RED wire, always use any pin or pointed toothpick or something similar to pull out the wire from socket. Trust me its very easy! You may connect directly through Gmail: globalmilind*gmail
Lenny J  30 points - 2/4/2015
Hey RonRC, can you give me a little info on how to reflash these for multi-rotor application? Thanks a lot for your help!!!
 RonRC 4001 points
Hi Lenny J, You will need a USBasp flash tool, search for it on line and most likely find it on the Electronic Bay store. This will allow you to reflash KK2 series of boards, ESCs, and other stuff. Next you need the Atmel Atmega Socket Firmware Flashing Tool found here at HobbyKing. This will allow you to flash directly on the Atmel Atmega chip found on many ESCs. You also need to download the kkflashtool from Diemols. This is the interface needed to select the correct firmware needed for your ESCs. This particular ESC needs the tp_8khz.hex file to flash it with SimonK. Hope this helps and happy flying!
 Lenny J 30 points
Thanks a bunch RonRC! I'm going to give this a try. I assume the SimonK firmware would be better than the standard firmware, even for planes, correct? Thinking about a tri-coptor build and I'm sure this will be a must. Thanks again!
 RonRC 4001 points
Oh for sure! I put SimonK on my 50A ESC in my F-22 foamy and it seems to have a lot more power with a smooth linear throttle. The only thing is, there is no low voltage cutoff with SimonK. So, when you put it in a plane, you need to use a voltage alarm. If you are using 3S batteries to power your planes, blue LEDs work great too. They get very dim at 10.5v and when it drops below that, they are very faint. This is a method I've been using for a while on lots of my planes. Hope this helps and Happy flying!
 Lenny J 30 points
Excellent. Thanks for the heads up on lack of voltage cutoff with that firmware. I think I will still try it if the throttle is smoother and more linear and extra power would be a bonus but not necessarily expected. I appreciate all your helpful replies RonRC! All the best to you...
OMARcito  2 points - 2/3/2015
este esc no me funciono con el motor HK3011-1900KV porqu
pasara eso??.... ojala alguien pueda explicarme .. Gracias.-
 athos 96 points
Omarcito tienes que comprar una CADR que corespoda a tu motor para podre reglarlo, porque todas las card no son buenas, aveces en la pagina del motor ponen la CARD que corresponde. espero que eso te va ayudar. amitad raymond
Customer Reviews
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Overall Rating
209 thumbs up!
Pretty cheap and good value for money. Decently priced and great performance. Highly recommended. Easy to program using sticks. Information provided in the leaflet.

6 comments. Reply..

Overall Rating
Elin Hristov
160 thumbs up!
It is what it says - Super Simple
Here are the instructions:
Always start with throttle off, except when programming - then at full throttle!
Remember to check for channel reverse!
1. Turn on TX.
2. Set full throttle
3. wait for the beeps - 3sec after the first initial beep: (move throttle to off position during pause to select setting)
3a. beep, pause, beep - Li-po (cut-off 3v per cell)
3b. beep, beep, pause, beep, beep - Ni-Mh (cut-off at 60pcnt of starting voltage)
3c. beep,beep,beep, pause, beep, beep, beep -toggle brake enable/disable
Glad to have it, will by more. Cheers.

11 comments. Reply..

Overall Rating
79 thumbs up!
This ESC works perfect up to 30A. Nice linear throttle. But I WARN you now, I bought on Sept. 28, 2009 because I needed a 3A BEC. After testing it on my Watt Meter it only has a 2A BEC. It cuts off and resets at 1.89A using 6 HXT900 servos. Minus 1 for wrong Spec. Other than that, great bargain. Also vote plus1 on this review to let others know about this mistake. Thanks.

15 comments. Reply..

Overall Rating
Jaroslav Rehurek
49 thumbs up!
Tento regulator je opravdu SUPER. Bez velkeho programovani bezi s mnoha stridavymi motory. Plyn je linearni v celem rozsahu. Zkousel jsem ho s motory Mystery 2632-800 a 2930-1000 a s motory KD 22-20L a vzdy plny vykon bez probelmu. V teto cene se neda sehnat nic lepsiho. Neni k nemu navod, ale programovani je jednoduche: Jedno pipnuti - LiPol, dve pipnuti - Nixx, tri pipnuti - brzda. Programuje se stazenim plynu na minimum.

1 comment. Reply..

Overall Rating
28 thumbs up!
This is a no frills ESC that works great. I have tried it with both inrunner and out runner and both worked equally well. The programming is cell type and brake on/off. I have tried it with several Suppo outrunners and a 4100kv Himax ducted fan all run fine with this esc. Just cant beat the price on these!!!

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