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08-16-2012, 12:27 AM | #1 (permalink) |
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Join Date: Nov 2010
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Voltage Step Down BLS251
Has anybody use a step down for their BLS251? If so, how did you configure your wiring? Was it neat or did it take up more space than planed?
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08-16-2012, 01:46 AM | #2 (permalink) |
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Advice is don't bother with a step down, do not use it myself and reports of others using for years at 5.6 -6v and no ill effects. Also rational is that fully charged batteries used of old reached those voltages anyway.
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LOGO 500SE & 600SE & 600SX Synergy E7 - N7 - N5C zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzTDR + II Alun |
08-16-2012, 01:53 AM | #3 (permalink) |
HF Support
Join Date: Aug 2007
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BLS251 are rated for 6V, use them at 6V.
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08-16-2012, 07:56 AM | #4 (permalink) |
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I am running 3 of these at 5.6-6V no issues at all. As stated, they can handle 6v. The speed specs are for 4.8v but it's cool.
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Synergy Factory Specialist / Rail Blades / Team Scorpion |
08-16-2012, 08:37 AM | #5 (permalink) |
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Thread Starter
Join Date: Nov 2010
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I understand this but the specs say 4.8V. Wouldn't this cause a servo failure in the long run? I brought the step down but won't have any place to put it. So, I'm going without but don't want to crash the chopper. Why is it rated at 4.8V if it can do 6V?
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08-16-2012, 09:15 AM | #6 (permalink) |
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Join Date: Dec 2006
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It's to do with the 4.8V ratings referring to older nicad battery packs which, when fully charged were approx 6V rather than the nominal rated 4.8v ..
A bit like a car batt rated at 12v but is actually 13.8v
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08-21-2012, 03:11 AM | #8 (permalink) |
HF MR Support
Join Date: Nov 2011
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Regardless of what people say. I would still use the step down diode on the BLS 251. I have been using BLS 251 on my TDR, T700 and Logo 600SE with step down.
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Lynh |
08-21-2012, 03:50 AM | #9 (permalink) |
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Join Date: Jan 2008
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I use the Align two way step down to step down from 6v. Cheap and works.
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08-21-2012, 04:27 AM | #10 (permalink) |
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Personal choice of course, but another point of failure in the way when the servo will run happily on 5.6 - 6v is not one for me.
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LOGO 500SE & 600SE & 600SX Synergy E7 - N7 - N5C zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzTDR + II Alun |
08-21-2012, 04:43 AM | #11 (permalink) |
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Join Date: Apr 2009
Location: Norway
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+1.
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minicopter Diabolo, Henseleit TDR, X50e, X50n, Raptor 50 Futaba 2.4 GHz |
08-21-2012, 04:44 AM | #12 (permalink) |
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Thread Starter
Join Date: Nov 2010
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I just returned my step down to amainhobbies. I didn't see Jan using it per the manual.
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08-21-2012, 01:46 PM | #13 (permalink) | |
HF Support
Join Date: Aug 2007
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Quote:
http://www.mhm-modellbau.de/pdf/tech...rvos-robbe.pdf |
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08-21-2012, 09:38 PM | #14 (permalink) | |
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Thread Starter
Join Date: Nov 2010
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Quote:
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08-22-2012, 12:32 AM | #16 (permalink) |
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Join Date: Oct 2009
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I'll give you a step down if you want one but I have well over 100's of flights on bls 251's at 5.6 of the jive.
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TDR, Srimok N x 2, Banshee 31, Dune! |
08-22-2012, 07:55 AM | #17 (permalink) |
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Join Date: Apr 2009
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I had 700 flights with BLS251 at 6V from Jive - do not worry, it is working just fine.
(i must say, better then the Outrage i have now)
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