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Old Aug 08, 2014, 07:39 AM
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Joined Sep 2013
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UM Warbird batteries

I've placed this in here as opposed to the Battery folder as it relates specifically to UM warbirds.

What are the best batteries to use in the 1S HH warbirds? My fleet consists of a three week old T-28, a week old AS3X Mustang, a newly re-winged AS3X Spitfire and of course the trusty Champ. Apart from the 4 eFlite 150 25Cs that came with these planes, I have two eFlite 150 35s and a dozen NanoTech 160 25-40Cs. Now just talking the Nanos, I get about 7 or minutes on the Champ and Trojan before LVC, so I have timer set at 6 to play it safe. Although, I got 8.20 on a Trojan flight this afternoon, wanted to see how much I could get (that and I was just having too much fun). On the other hand, the Spitfire and Mustang burn through the batteries, esp the Spitfire. I have both set at 5min, and a lot of the time the Spit will hit LVC at around 3.30-4min. I can get the Mustang closer to 5, and most times I do, even had a couple to 6. I don't fly full throttle, and cruise at around 60-75% most of the time. Is it the higher pull from the motors, or the AS3X that is taxing them more? The eFlite batts get me to pretty much the same.

Now my charging set up. I have an iMaxB6 with a parallel 6 lead. I have it on 2.0A, and it usually takes around 10-12 minutes to charge them. I tried something this afternoon, and on my usual 2A setting, charged 6. About 10min after they finished charging and the charger read 4.20, I individually checked voltages on them. Four of the six said 3.98, and the other two showed 4.05. What gives?? Once they hit 4.20, do I pull them off, or let it go for some more? If this has been the case (as I haven't individually checked post charging before), then would that explain the short run times in the the two fighters? But I've still been getting decent times with the other two. Do the Spitfire and Mustang require batteries of a higher C than the 25-40C NanoTechs?

I'm a bit puzzled, even though its probably pretty straight forward.

Michael
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Last edited by schuey19; Aug 08, 2014 at 08:14 AM.
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Old Aug 08, 2014, 10:26 AM
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doha Qatar
Joined Jan 2004
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I just got some Lectron 45c 180 mah and they appear to be the easiest, cheapest upgrade you can make to these birds.
Regards
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Old Aug 08, 2014, 11:09 AM
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Originally Posted by Joe Perrone View Post
I just got some Lectron 45c 180 mah and they appear to be the easiest, cheapest upgrade you can make to these birds.
Regards
I've also been using these batteries and have had no problems with them. Definitely a step up from 150/25c for flight time and power. The price is decent too!

Cheers!
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Old Aug 08, 2014, 04:25 PM
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OK, next Q. Where from?
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Old Aug 08, 2014, 06:43 PM
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Canada, ON, Mississauga
Joined Oct 2011
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Look at www.batteryuniversity.com and read about charging lithium batteries. When the voltage reaches 4.20V then they are only 70% fully charged. You must continue charging and your charger should disconnect when the charging current drops to a low current.
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Old Aug 08, 2014, 10:21 PM
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Originally Posted by schuey19 View Post
OK, next Q. Where from?
Amazon for one. I always slip a couple in when I order a movie or something.

http://www.amazon.com/12-Pack-Lectro...ectron+pro+3.7
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