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Other › CX eating batteries-help!
11-21-2006 05:29 AM  11 years agoPost 1
sed6

rrApprentice

OKC, OK

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I got my brother a BCX 3 months ago as a birthday gift. He uses the stock LiPo charger with AC adapter. He's on his fifth e-flight lipo, the first two are dead, the third is going and only the newest two are decent. He says he quits flying once the heli can't get out of ground effect. What's going on here! Over discharge, over charge, crappy lipos, crappy charger?


-------------------
-Scott D
T-Rex 600N
T-Rex 450SA

Practice at the field!

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11-21-2006 05:34 AM  11 years agoPost 2
BLADE CP GUY

rrApprentice

Houston, Texas- USA

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Can you Give us a little more DETAILS please?

haha yeah we need more details

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11-21-2006 06:12 AM  11 years agoPost 3
Alan K

rrNovice

Santa Rosa, CA - USA

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If you are flying until you can't get out of ground effect, you've already discharged the battery too much, which will reduce it's life. The situation is compounded by the BCX battery -- which in my opinion isn't the greatest. I know a lot of folks have posted that they fly their BCX's 9 or 10 minutes, but I limit my flight time to 6 minutes or so.

---Alan

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11-21-2006 11:59 AM  11 years agoPost 4
tsekwe

rrNovice

Western Australia

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I was havig a similar problem with my counter rotating heli. I thought the inner shaft was binding and tried all sorts of things. It turned out that it was a motor connecting wire and micro plug. It had got overheated and melted causeing a tiny short circuit. That was enough to do it.

Jonesy

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11-21-2006 12:44 PM  11 years agoPost 5
smcbmw

rrVeteran

Louisville, Kentucky

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Sounds like a definite over discharge. I always fly until I notice a slight drop in performance. Buy a meter to check your batteries voltage. I never let my batts get below 3.6 v. per cell just to be safe and preserve the battery life.

10-8

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11-21-2006 01:10 PM  11 years agoPost 6
Gino CP

rrKey Veteran

Philippines

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I usually land when my CP no longer has the oomph during climbouts. Or when the tail starts to lose it on climbouts. On my 2s pack, that's about 15 minutes. 11 minutes on idle up.

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11-21-2006 06:44 PM  11 years agoPost 7
Zaneman007

rrElite Veteran

Texas - USA

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He says he quits flying once the heli can't get out of ground effect.
Sounds like he is flying it until the battery is totally dead. Flying a lipo until it is totally dead is by far the best way to destroy a new Lipo.

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11-21-2006 08:08 PM  11 years agoPost 8
bbeverlie

rrKey Veteran

Hudson,New Hampshire.USA

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I agree totally with the over discharged statement
total lipo killer trying to fly until it won't!!

AMA#846952

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11-22-2006 04:50 AM  11 years agoPost 9
sed6

rrApprentice

OKC, OK

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Seems conclusive, over discharge through flying too long. I had a chat with my brother and told him to limit his flight times on his two new packs to 5-6 minutes. We'll see if these don't last longer. Thanks!


-------------------
-Scott D
T-Rex 600N
T-Rex 450SA

Practice at the field!

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