RCCrawler Forums

killswitch · 01-15-2011, 09:43 PM

I just replaced my CC BEC in mine... drove across the living room floor to check all of my stuff. Crawled over 2 motor cases (not more than 6 inches total), steered once and the servo died. Thought I finally lost my trusty 5955, but it was the BEC. Put my OG CC BEC that Ive had for years in and its fine now. So much for finally using this spare Ive had for 4 months...

edit: this is on a LCC, too. Tekin RS, epic duo2 17.5, 3 cell. I run KO radio gear. BEC is only powering the steering servo.

Twisted Nuts · 01-16-2011, 02:44 AM

i'm running two 7950's, MMP, and Novak 18.5's. one setup on the wifes LCC and one on mine. both with the 10A CC BEC
never had a problem, (outside of the servo getting a little hot) BEC in Her rig actually powers the RX (dig, steering, ESC)

BEC in my rig is wired to the Servo. Both BEC's powered @ 7.4V

Robbob · 01-16-2011, 04:01 PM

comped today and no problems so far ..... took a 3rd spot but still no steering failures.

davec · 01-16-2011, 06:05 PM

I replaced my 10A BEC with an identical one and my problem persists, so it definitely is not a bad BEC. I am wondering if Castle has made component changes or something and their new BEC's are not putting out as many amps or are overloading easier. Something has definitely changed in the new batches of BEC's, at least it seems like it to me. I have been running this truck for almost 2 years with the same servo, so I doubt highly that I am going to be able to find anything major in my truck that is causing this. I also tried 2 other different servos and the problem is persistent, so I doubt if it is a problem with my servo. I might have to bump up to the 20A BEC if I can't figure something out. Glad it seems to be working for you Robbob. Just curious, how much bigger is the 20A BEC? Any pictures for comparison?

Deezul · 01-16-2011, 08:35 PM

robob I have a Hitec programmer if you need to check the settings. I can bring it Sat, Let me know

paintballer9876 · 01-16-2011, 09:23 PM

Quote:

Originally Posted by davec

I replaced my 10A BEC with an identical one and my problem persists, so it definitely is not a bad BEC. I am wondering if Castle has made component changes or something and their new BEC's are not putting out as many amps or are overloading easier. Something has definitely changed in the new batches of BEC's, at least it seems like it to me. I have been running this truck for almost 2 years with the same servo, so I doubt highly that I am going to be able to find anything major in my truck that is causing this. I also tried 2 other different servos and the problem is persistent, so I doubt if it is a problem with my servo. I might have to bump up to the 20A BEC if I can't figure something out. Glad it seems to be working for you Robbob. Just curious, how much bigger is the 20A BEC? Any pictures for comparison?

quite a bit bigger

davec · 01-16-2011, 10:20 PM

Quote:

Originally Posted by paintballer9876

quite a bit bigger

Wow, holy crap that thing is big.

Robbob · 01-17-2011, 05:26 AM

Quote:

Originally Posted by Deezul

robob I have a Hitec programmer if you need to check the settings. I can bring it Sat, Let me know

ya that be cool, thanks.

Quote:

Originally Posted by davec

Wow, holy crap that thing is big.

ya the thing is huge, Ill snap a pic tonight of where I put it.

I had the rig bound good a couple of times yesterday at our comp, servo kept chuggin away and bec never got warm.

bpd964 · 01-17-2011, 07:04 AM

That little bec can't handle it.. Period..!

The castle 10amp bec is not "true" 10a capable.

Grab a CC Bec Pro v2 or a Hercules High Current Bec..

Or run your RX straight from a 2s LifePo pack.

Robbob · 01-17-2011, 07:25 AM

Quote:

Originally Posted by bpd964

Hercules High Current Bec..

Brand? Link?

Never heard of that one before, wondering if its footprint is smaller.

bpd964 · 01-17-2011, 07:41 AM

Quote:

Originally Posted by Robbob

Brand? Link?

Never heard of that one before, wondering if its footprint is smaller.

Western Robotics.. They have one thats a little smaller than the BEC pro

Here is one of a few they have..http://www.readyheli.com/WRL-HBECM-W...k_p_36456.html

JohnRobHolmes · 01-17-2011, 07:42 AM

http://www.amainhobbies.com/product_...EC-44-53-6-83V

bpd964 · 01-17-2011, 07:50 AM

I have the one posted above... I had this one and currently the Bec Pro installed in my 30cc plane that I converted to electric running on 10s lipo and 5x Digital servos.

The Hercules is on the left... Handled the current effortlessly..!

Robbob · 01-17-2011, 08:19 AM

Quote:

Originally Posted by bpd964

Western Robotics.. They have one thats a little smaller than the BEC pro

Here is one of a few they have..http://www.readyheli.com/WRL-HBECM-W...k_p_36456.html

Quote:

Originally Posted by JohnRobHolmes

http://www.amainhobbies.com/product_...EC-44-53-6-83V

Thanks

Krakker · 01-19-2011, 07:32 AM

After reading a few threads like this, I'm pretty sure that there must be a BAD batch of BEC's from Castle.
I kicked mine on last night and got a few seconds of decent steering and then the light started flickering every time I tried to turn, as well as seemed really dim.
my 2yr old trusty CC, BEC, is still powering the 7950 like a champ. I am calling Castle today.

bpd964 · 01-19-2011, 07:57 AM

You're probably right about a bad batch but also be aware that this bec is good for probably 5-6 amps continuous and 10a burst for maybe 2-5 seconds. If you get one of your wheels stuck and your servo is working hard as heck to get unstuck, you'll probably be holding that peak voltage for longer than the 2-5. Especially if you are using high torque servos.

paintballer9876 · 01-19-2011, 08:18 AM

Quote:

Originally Posted by bpd964

You're probably right about a bad batch but also be aware that this bec is good for probably 5-6 amps continuous and 10a burst for maybe 2-5 seconds. If you get one of your wheels stuck and your servo is working hard as heck to get unstuck, you'll probably be holding that peak voltage for longer than the 2-5. Especially if you are using high torque servos.

im going to hold on to the bad batch theory since i have one powering my airplane servos 2x 5645 and 2x 7955 and no issues, this is on a 3d plane. Also a guy at my local club managed to get the servo stuck and kept trying to wingle out and smoked a 7980 and the bec didnt falter once.

bpd964 · 01-19-2011, 08:22 AM

Sounds good. I definitely would not discount that fact. Hope you get some good info from them. I use a few of these bec's on my planes and never had an issue with "most" of them either. Hope you get it sorted out.

Krakker · 01-19-2011, 08:42 AM

Well, just to clarify, I pulled the BEC off the rear servo, reconnected it's signal wire into the plug, and plugged it back into the rx. The rx is now powering the rear 7955 servo "JUST FINE"!
I'm running a 7950 up front, and it's BEC is PERFECTLY powering the monster at 7.4V.

SO, I'm really lead to believe that it's a bad batch. I'll fill ya'll in when I get back from talking to them.

bpd964 · 01-19-2011, 08:44 AM

Nice!

Good deal..

01-17-2011, 07:04 AM	#49
bpd964 Quarry Creeper Join Date: Mar 2010 Location: Bridgeport, CT Posts: 280	That little bec can't handle it.. Period..! The castle 10amp bec is not "true" 10a capable. Grab a CC Bec Pro v2 or a Hercules High Current Bec.. Or run your RX straight from a 2s LifePo pack. Last edited by bpd964; 01-17-2011 at 07:12 AM.

01-17-2011, 07:50 AM	#53
bpd964 Quarry Creeper Join Date: Mar 2010 Location: Bridgeport, CT Posts: 280	I have the one posted above... I had this one and currently the Bec Pro installed in my 30cc plane that I converted to electric running on 10s lipo and 5x Digital servos. The Hercules is on the left... Handled the current effortlessly..! Last edited by bpd964; 01-17-2011 at 07:57 AM.

01-15-2011, 09:43 PM	#41
killswitch RCC Addict Join Date: Jun 2005 Location: St. Albans Posts: 1,441	I just replaced my CC BEC in mine... drove across the living room floor to check all of my stuff. Crawled over 2 motor cases (not more than 6 inches total), steered once and the servo died. Thought I finally lost my trusty 5955, but it was the BEC. Put my OG CC BEC that Ive had for years in and its fine now. So much for finally using this spare Ive had for 4 months... edit: this is on a LCC, too. Tekin RS, epic duo2 17.5, 3 cell. I run KO radio gear. BEC is only powering the steering servo.

01-16-2011, 02:44 AM	#42
Twisted Nuts Rock Crawler Join Date: Jun 2009 Location: summertown Posts: 512	i'm running two 7950's, MMP, and Novak 18.5's. one setup on the wifes LCC and one on mine. both with the 10A CC BEC never had a problem, (outside of the servo getting a little hot) BEC in Her rig actually powers the RX (dig, steering, ESC) BEC in my rig is wired to the Servo. Both BEC's powered @ 7.4V

01-16-2011, 04:01 PM	#43
Robbob Custom Carbon Fiber Join Date: Oct 2007 Location: Connecticut :( Posts: 4,501	comped today and no problems so far ..... took a 3rd spot but still no steering failures.

01-16-2011, 06:05 PM	#44
davec Rock Crawler Join Date: Oct 2008 Location: Sandy, OR Posts: 672	I replaced my 10A BEC with an identical one and my problem persists, so it definitely is not a bad BEC. I am wondering if Castle has made component changes or something and their new BEC's are not putting out as many amps or are overloading easier. Something has definitely changed in the new batches of BEC's, at least it seems like it to me. I have been running this truck for almost 2 years with the same servo, so I doubt highly that I am going to be able to find anything major in my truck that is causing this. I also tried 2 other different servos and the problem is persistent, so I doubt if it is a problem with my servo. I might have to bump up to the 20A BEC if I can't figure something out. Glad it seems to be working for you Robbob. Just curious, how much bigger is the 20A BEC? Any pictures for comparison?

01-16-2011, 08:35 PM	#45
Deezul RCC Addict Join Date: Feb 2006 Location: ccxc Posts: 1,176	robob I have a Hitec programmer if you need to check the settings. I can bring it Sat, Let me know

01-17-2011, 07:42 AM	#52
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	http://www.amainhobbies.com/product_...EC-44-53-6-83V

01-19-2011, 07:32 AM	#55
Krakker I wanna be Dave Join Date: Nov 2008 Location: Where freedom is earned. Posts: 2,011	After reading a few threads like this, I'm pretty sure that there must be a BAD batch of BEC's from Castle. I kicked mine on last night and got a few seconds of decent steering and then the light started flickering every time I tried to turn, as well as seemed really dim. my 2yr old trusty CC, BEC, is still powering the 7950 like a champ. I am calling Castle today.

01-19-2011, 07:57 AM	#56
bpd964 Quarry Creeper Join Date: Mar 2010 Location: Bridgeport, CT Posts: 280	You're probably right about a bad batch but also be aware that this bec is good for probably 5-6 amps continuous and 10a burst for maybe 2-5 seconds. If you get one of your wheels stuck and your servo is working hard as heck to get unstuck, you'll probably be holding that peak voltage for longer than the 2-5. Especially if you are using high torque servos.

01-19-2011, 08:22 AM	#58
bpd964 Quarry Creeper Join Date: Mar 2010 Location: Bridgeport, CT Posts: 280	Sounds good. I definitely would not discount that fact. Hope you get some good info from them. I use a few of these bec's on my planes and never had an issue with "most" of them either. Hope you get it sorted out.

01-19-2011, 08:42 AM	#59
Krakker I wanna be Dave Join Date: Nov 2008 Location: Where freedom is earned. Posts: 2,011	Well, just to clarify, I pulled the BEC off the rear servo, reconnected it's signal wire into the plug, and plugged it back into the rx. The rx is now powering the rear 7955 servo "JUST FINE"! I'm running a 7950 up front, and it's BEC is PERFECTLY powering the monster at 7.4V. SO, I'm really lead to believe that it's a bad batch. I'll fill ya'll in when I get back from talking to them.

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01-19-2011, 08:44 AM	#60
bpd964 Quarry Creeper Join Date: Mar 2010 Location: Bridgeport, CT Posts: 280	Nice! Good deal..

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