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carr52
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Joined: 08 Jan 2012
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Location: South Carolina

PostPosted: Mon Jan 23, 2012 12:28 am
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Cool, so I just charge at whatever the battery size is. Thanks.

Tm
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nick_onelove
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Joined: 01 May 2011
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Location: Mendocino County, CA, United States 21 years old

PostPosted: Mon Jan 23, 2012 1:21 am
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Yeah but the mCPX batteries have a fairly high C rate, I think they can handle 0.7A no problem.

That's what I've been charging mine at for almost a year now anyway.
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carr52
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Location: South Carolina

PostPosted: Mon Jan 23, 2012 2:21 am
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I know with the batteries in my solar panel setup a slower longer charge seems to be better and they have never let me down. Using that theory if I charge my li po batteries the same way it is better?
Tom
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nick_onelove
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Joined: 01 May 2011
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Location: Mendocino County, CA, United States 21 years old

PostPosted: Mon Jan 23, 2012 6:07 am
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It's possible, but I think any benefit would be negligible and not worth the increased charging time 0.2A would take. You understand the concept now, you can decide for yourself what's best for you.
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carr52
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PostPosted: Mon Jan 23, 2012 6:32 am
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Yeah I believe I do. I want to thankyou guys.
Tom
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dasBlade450
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Joined: 25 Dec 2011
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Location: New Hampshire

PostPosted: Mon Jan 23, 2012 5:48 pm
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FWIW...the mCPx manual RECOMMENDS the stock batteries be charged @ .7A -- the maximum charge rate offered by the stock charger (~2.5C)....
AVERAGE charge/recharge time is 20-25 minutes....I learned yesterday - the HARD way - DON'T go to a fly-meet with just TWO 1S batteries!!! I spent more time waiting for my batts to charge than I did FLYING!!! Crying or Very sad
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carr52
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Joined: 08 Jan 2012
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Location: South Carolina

PostPosted: Sun Jan 29, 2012 11:12 am
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I know I'm probably being a pest for asking so many questions but I was really flying a lot today and I always try to rotate my batteries so I don't use one more than the others but With as many charges I have been doing to these batteries can I damage them by flying too much in one day? I always let them cool down before I recharge and let cool down before I use them after a charge. But I've noticed that my flight time is much shorter now. I checked the motor and it is a little warm but not hot. After about 2 to 3 minutes the MSRX just slows and goes to the ground gently like it's running out of power. Again I'm sorry for asking so many questions.
Tom

Update: Well got that figured out. The stock battery that came with the MSRX has died. It charges but gives out after about one minute. If I unplug it then plug it back in it will go another 30 to 60 seconds then give out. This doesn't happen with any of the other batteries. I have to assume it's done for.
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tombo242
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Joined: 04 Nov 2008
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Location: Santo Estêvão, East Algarve, Portugal. Now 82, but still feels 22.

PostPosted: Mon Jan 30, 2012 6:09 am
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You're right there Tom,

The internal resistance of that battery has risen to the point of "No more Flying - I need to Retire NOW!"

Discharge it as much as possible - cut the leads off, 1 wire at a time. (A short can still be dangerous.) Keep the leads, they're always handy and drop the battery in a salt solution for a few days. It is then safe to dispose of.

Tom.
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carr52
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Joined: 08 Jan 2012
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Location: South Carolina

PostPosted: Wed Feb 08, 2012 9:37 am
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I just read the post about saving the leads off the battery. Thats a great idea. I also agree that caution is a must with lipo batteries. Thanks tombo.

Tom
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Tylor1023
Fully Charged
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Joined: 12 Jul 2012
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PostPosted: Tue Jul 17, 2012 2:18 pm
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In my opinion, battery is very important , so high quality is a must
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pjdog
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Joined: 12 Jan 2010
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Location: Hudson, Florida, USA

PostPosted: Tue Jul 17, 2012 7:22 pm
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I have 10 150 mah 12c e-flight batteries. Been using them in the MSR. They fly the MSR the expectec 8 to 10 minutes.

Using the same batteries in the MSR-X only one battery will work.

I emailed Horizon Hobby about my problem and they seem to be lost. They wanted receipts, where I got the batteries, how long I'd had them how many charges on the batteries and MSR-X. All sorts of questions but no answer.

I should mention that the main motor pooped out on the new MSR-X after ten flights. I had to look all over the place to get a replacement motor. Horizon did send me a replacemnet after 60 days.

All I wanted from Horizon was some information as to if I was doing something wrong with the MSR-X. Having only one battery means that the new MSR-X does not get allot of air time.

Five of the ten batteries are new but only one will fly the MSR-X?

As a result I'm not very happy with it.

First bad experence I've ever had with a Blade (E-Flite) product.

Jack
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