Albert Ace Posted September 5 Share Posted September 5 As a Futaba 14sg user: is there a higher powered Reciever available. Or is there some other alternative to using Nimhs for my Glo powered models ?? Albert Quote Link to comment Share on other sites More sharing options...
MattyB Posted September 5 Share Posted September 5 (edited) LiFe 2S pack is normally a great option , but make sure your servos are rated for that voltage! Edited September 5 by MattyB 1 Quote Link to comment Share on other sites More sharing options...
Nigel Sharp Posted September 5 Share Posted September 5 Expect you could put a ubec in the circuit to reduce the voltage to 6v. Obviously there will be some resistance overhead as a result. But would enable 2s 7.2 volt down to the standard 6v receiver. Just like an esc bec. 1 Quote Link to comment Share on other sites More sharing options...
Peter Christy Posted September 5 Share Posted September 5 The receivers aren't the issue. Its the servos. JR servos burn out quite quickly above 6V, especially if worked hard. The general consensus is that Futaba servos are more tolerant, but any servo not rated for higher voltage will have its life significantly shortened by running it on an excessively high voltage. LiFe generally cells are better than LiPo or LiIon cells, as they are 3.3V per cell (6.6 for 2S Vs 7.X for LiPo/LiIon). They also don't have a tendency to burst into flames if mischarged like LiPos, making them safer to charge in situ. You really need to find out what your servos are rated to. -- Pete 1 Quote Link to comment Share on other sites More sharing options...
Albert Ace Posted September 5 Author Share Posted September 5 Thanks all. Going for a Ubec, probably. Quote Link to comment Share on other sites More sharing options...
GrumpyGnome Posted September 5 Share Posted September 5 4 hours ago, Albert Ace said: As a Futaba 14sg user: is there a higher powered Reciever available. Or is there some other alternative to using Nimhs for my Glo powered models ?? Albert Why do you want to stop using NiMH? Quote Link to comment Share on other sites More sharing options...
Albert Ace Posted September 6 Author Share Posted September 6 Grumpy, just curious. Been using Nimhs forever, and I'm the club 'you're not charging that right' moaner. A lot of people fast charge Nimhs, usually in 1 to 2 hours. I always use standard wall charger and leave 6 to 10 hours, depending on use. Like I said, just curious. Albert 1 Quote Link to comment Share on other sites More sharing options...
Cuban8 Posted September 6 Share Posted September 6 (edited) 18 hours ago, Peter Christy said: The receivers aren't the issue. Its the servos. JR servos burn out quite quickly above 6V, especially if worked hard. The general consensus is that Futaba servos are more tolerant, but any servo not rated for higher voltage will have its life significantly shortened by running it on an excessively high voltage. LiFe generally cells are better than LiPo or LiIon cells, as they are 3.3V per cell (6.6 for 2S Vs 7.X for LiPo/LiIon). They also don't have a tendency to burst into flames if mischarged like LiPos, making them safer to charge in situ. You really need to find out what your servos are rated to. -- Pete My Futaba standard sport servos i.e. 3001s do not work correctly on anything over 6.5V as I found out when I was dabbling with changing over from nimhs a while ago. They are rated at a max of 6V so not surprising really. I believe Futaba's inexpensive new standard servos are still only rated for 6V max, but their standard digital servo (at twice the price) is rated to 8V. Servo Shop's website is very good for servo data. Edited September 6 by Cuban8 Quote Link to comment Share on other sites More sharing options...
Don Fry Posted September 6 Share Posted September 6 JD 8, what caused the distrust of 3001, and Life combo. In the days of NiCad, a 3001 died when the gear train got slop. Nowadays, still with a box of 3001’s, mine die of slop if driven by a LiFe cell. No idea if the hours are shorter, don’t care much, slop gets eliminated as a servicing issue, not crash forensic examination. Dont know much about NiMh, early adopter, using cheap cells, grew a dislike before I even head of enloop types. By then too late, or more to the point, little desire. Life, leave at storage level, last minute desision to fly, 20 minute charge and it’s good to go. Quote Link to comment Share on other sites More sharing options...
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