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T-REX 700 › Battery cycles
04-07-2011 08:30 PM  6 years agoPost 1
Gas and Go

rrApprentice

Western Wisconsin-​USA

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I am researching electric helis and I am wondering how many cycles are you getting on your battery packs?

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04-08-2011 02:27 AM  6 years agoPost 2
Band1086

rrElite Veteran

Kennewick, Wa. USA

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If you take care of them, TP is claiming 600 on the 65C's.
The New Pinnacle of Performance – The World’s Most Advanced, Most Powerful and Longest Lasting LiPo Batteries Yet!
Thunder Power RC introduces all-new Generation 6 (G6) Pro Power 65C series batteries capable of technology-leading charge rates up to 12C* and delivering up to 60% more power and 600+ cycles for high-power airplane, EDF, 3D helicopter and other demanding applications.
All others are questionable. But there are five main rules to follow:
1.Never discharge them more than 80%.
2.Never charge them when they are over about 110(imo) degrees.
3.Never store them fully charged for more than a day.
4.Never let them freeze, or even come close.
5.Never discharge a battery too fast for it's rating(or so fast it gets hot).

If these rules are followed, they will have the longest life possible.

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04-08-2011 11:10 AM  6 years agoPost 3
Ben-T-Spindle

rrProfessor

Central Illinois

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Battery life depends on how far you discharge them. If you don’t violate the 80% rule they last a very long time. If you discharge to cutoff the life will be very short.

I use Turnigy nano-tech packs and get 300-500 cycles depending on how hard I fly them. A pack needs replacing when it gets below 80% of original capacity.

... BTS

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04-08-2011 11:17 AM  6 years agoPost 4
Band1086

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Kennewick, Wa. USA

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Ben, if you get that much out of HK batts, I can't even imagine what you might get from a TP 65C!

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04-08-2011 01:37 PM  6 years agoPost 5
ambravo

rrApprentice

Long Island, New​York

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That is amazing!

Angel
Team Heliproz

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04-08-2011 01:52 PM  6 years agoPost 6
Twrecks600

rrKey Veteran

Round Rock, Texas

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I fly Spyder packs on my Trex 600E 8s setup. I am at 175 flights and they are just starting to lose their "punch" but that is many hard flights in Texas heat and abuse (I tested the packs when they first came out. They were over discharged, charged at 5c, etc...) I am currently flying the Spyder 12s 5300 mAh 30c packs for my Trex 700E and I am on 40 flights on one set and 12 flights on the other set and both have insane amounts of power, IR below .7, and charge / balance perfectly!!

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04-08-2011 02:34 PM  6 years agoPost 7
ambravo

rrApprentice

Long Island, New​York

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Do you know how much these Spyder packs weigh?

Angel
Team Heliproz

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04-08-2011 02:52 PM  6 years agoPost 8
MikeM

rrApprentice

Austin, Texas - USA

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According to this http://batteryuniversity.com/learn/...based_batteries it's actually better to store them cold.

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04-08-2011 05:16 PM  6 years agoPost 9
Band1086

rrElite Veteran

Kennewick, Wa. USA

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Do you know how much these Spyder packs weigh?
756g(28.35 grams per oz.) for the 5000(5300) 6S.
it's actually better to store them cold.
Yes, but not freezing. 40 degrees or so should be alright.

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04-08-2011 05:45 PM  6 years agoPost 10
MikeM

rrApprentice

Austin, Texas - USA

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Yes, but not freezing.
Not according to the data I cited, linked above. Do you have any reference to support your statement? Are we having fun yet?

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04-08-2011 05:54 PM  6 years agoPost 11
Twrecks600

rrKey Veteran

Round Rock, Texas

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Spyder 6s 5300 info

Weight - 752g
Length - 135mm
Width - 62mm
Height - 42mm

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04-08-2011 11:00 PM  6 years agoPost 12
Band1086

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Kennewick, Wa. USA

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Quote
--------------------------------------------------------------------------------

Yes, but not freezing.
--------------------------------------------------------------------------------

Not according to the data I cited, linked above. Do you have any reference to support your statement? Are we having fun yet?
Yes, here you go:

http://www.bigrcmodels.com/RC-Helic...ery-Storage.asp

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04-09-2011 12:51 AM  6 years agoPost 13
MikeM

rrApprentice

Austin, Texas - USA

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Gotcha. Battery University has this to say about itself (linked above)
Cadex has been recognized as a world leader in battery testing, and the advanced battery analyzers, chargers and monitoring devices the company makes are proof of this strength.
Sounds pretty credible to me. Mind you I wouldn't advocate storing them in the freezer. Just that I read that chart and it actually shows performance was better at 0C than anything warmer.

I didn't mean to hijack this thread!

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04-09-2011 01:50 AM  6 years agoPost 14
AndyH

rrKey Veteran

Rockledge, FL

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Whew.. all this talk bout battery temperatures scared me. Mine have been stored all winter in the garage, rarely gets to freezing outside here, never in the garage. Haven't been flying much this winter...

New house, pregnant wife, and school. Tough to get out flying, but dont want my batteries to go bad!

In the past I alway got about 100 cycles on all my packs at the very least, but I always notice a drop in performance around 30-40 cycles, then they level out till they go, this is just my experience at least.

This hobby is like Kryptonite to chicks!

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