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Help: Not charging
Tags: Syma X9
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G 1
Guest
Guests
March 7, 2013 - 10:34 pm

Hi all,

I have connected my 107G for charging but it doesn't charge. After I take it out, it only flies for a few seconds then it hovers on the ground. Is my battery gone or is there something else I can do? I've only had it for a few months.

 

Tx

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G 1
Guest
Guests
March 9, 2013 - 12:37 am

Anyone?

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jbrumberg
Guest
Guests
March 9, 2013 - 2:32 am

It does sound like a dead battery, but it could also be a dead/dying motor.

 

I am curious as to the usage and storage of your heli/battery.  I have replaced batteries after about 500 miutes of flight time.

 

Motor A and/or Motor B seem to break down around after 300 to 400 minutes of operation.

 

The first time I had a problem such as yours.  I immediately assumed it was the battery and replaced it.  The problem remained until I replaced the motor.  One has to closely scrutinize the rotors under operation to determine which motor has failed as the "live" rotors influence the spinning of the "dead" rotors.

 

 

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G 1
Guest
Guests
March 9, 2013 - 4:15 am

OK thanks for the advice. But if the rotor is in fact broken surely the copter should be able to charge. The light remains on even though when I fly it it doesn't work well. Also when I fly it immediately it is able to gain height for a few seconds then gradually falls down. 

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CPD
Guest
Guests
March 9, 2013 - 8:17 am

If the light's remaining on while charging, you don't have it shut off. Could be something not charging the battery, but it might just be a blown out battery. Open up the hood, (i.e. take off the canopy) and look at the battery. If it looks bloated, it's probably dead.

Have to give them at least a 15 minute cooldown time between flights, charges and 2nd flights.

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G 1
Guest
Guests
March 9, 2013 - 8:00 pm

Battery doesn't look bloated. 

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jbrumberg
Guest
Guests
March 10, 2013 - 1:03 am

G1-  I am confused as to the light(s) to which you are referring.

 

The last battery I replaced did not look bloated/puffy at all and appeared to "charge up" like the others (the USB LED would light up), but my multimeter indicated that this battery could not charge up to its full capacity (4.05V vs 4.2V), hold its charge, and rapidly depleted after 1 minute of flight to 3.52V.  I believe a "drained" battery is considered to be 3.7V. 

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G 1
Guest
Guests
March 10, 2013 - 2:34 am

I am referring to the light on the USB charger that goes red when the battery is meant to be fully charged. This light is always on. If you believe it is the battery I will have to get a new one. Does anyone know of a cheap one? 

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CPD
Guest
Guests
March 10, 2013 - 10:36 am

That means either A, the heli isn't shut off while charging, B the connection between the charger and the heli's charge port isn't good, C The battery isn't good, D there's a broken connection between the charge port and battery somewhere, or E the charger is bad.

 

Look it over, see if you can spot any noticable problems, i.e. broke wires, bent pins in the charge port, bloated battery, charger not connecting right, etc. and then try to narrow it down. I don't personally have anywhere I can recomend for batteries, seeing as I have yet to personally have to replace one, but SN, SF, Jam or Zed should know of somewhere between all of them.

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JamDJ
Lancaster, PA, USA
Admin
March 10, 2013 - 7:49 pm
Member Since: February 14, 2012
Forum Posts: 254
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G1,  When it does fly, does it get the TBE?

(toilet bowl effect for those unfamiliar with our crazy 

acronyms) Process of elimination: if

so, we'll look at a motor, if not and it flies well

if only for a few seconds, we'll look at battery replacement. 

Don't panic, neither one is difficult.

Agrivating as typing this on a cell-phone ,

but. not difficult.

 

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G 1
Guest
Guests
March 10, 2013 - 7:58 pm

Thanks so much for the replies. I will look at the heli in more detail. When it flies it does not experience TBE. I have had issues connecting the charger to the heli but it does fit comfortably now. 

Sorry for the inconvenience.   

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jbrumberg
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Guests
March 11, 2013 - 12:20 am

There should be no inconvience in the pursuit and sharing of knowledge.  To teach is to learn.  We are all in "this" together. 

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JamDJ
Lancaster, PA, USA
Admin
March 11, 2013 - 12:28 am
Member Since: February 14, 2012
Forum Posts: 254
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It's no inconvenience at all. This is why we are all here and keeping tthis forum 

going, to help each other, new hobbiests, and to have fun!

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jbrumberg
Guest
Guests
March 11, 2013 - 12:50 am

... and membership provides a whole new world information that will provide "justification" to purchase all kinds of geeky stuff like multimeters, soldering stations, etc.cool

 

and/or make and break stuff surprised

 

and hoard stuffwink

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CPD
Guest
Guests
March 11, 2013 - 1:56 am

jbrumberg said
We are all in "this" together. 

 

Do I sense Red Green?

--Keep your stick on the ice, we're all in this together!

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Syma Freak
Admin
March 11, 2013 - 7:28 pm
Member Since: November 26, 2010
Forum Posts: 1430
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JamDJ said
It's no inconvenience at all. This is why we are all here and keeping tthis forum 

going, to help each other, new hobbiests, and to have fun!

Thanks guys for your input..not much more to say..Just thanks from all the members

 

"Fly like a butterfly sting like a Syma" http://syma107.com

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G 1
Guest
Guests
March 13, 2013 - 11:00 pm

OK guys, I've taken some pics of the heli and the battery. This was straight after I flew it for a few seconds. It did the same thing again, flew well for a few seconds then hovered on the ground. The battery does look a bit bloated. Please advise me. 

 

http://postimage.org/image/k3qlptqyr/
http://postimage.org/image/ejipsxhhf/

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jbrumberg
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Guests
March 14, 2013 - 1:46 am

"The battery does look a bit bloated."  I agree.  Do you have a multimeter?  A battery is at full charge at 4.2V.  A battery is considered "drained" at 3.7V.  One of my failed batteries really did not look as bloated as yours.  It would only charge to 4.05V and would drain down to 3.52V after 5 minutes of operation.  I had another battery drain down to 3.71V after 2 minutes of operation.  These LiPo batteries are quite finicky; almost like a living entity.  They really need to be taken care of.  I run a 5 minute flight, 20 minute rest/cool down, 45 - 55 minute charge (or more), 10 minute rest/cool down, 5 minute flight routine.  I limit my flights to 5 minutes.

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G 1
Guest
Guests
March 14, 2013 - 4:14 am

I dont have a multimeter but I think I should buy a new battery. Could I possibly buy a more powerful one? Or does it have to be the same?

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jbrumberg
Guest
Guests
March 14, 2013 - 5:23 am

There are many, many discussions as to the cost-benefit of installing a stock 3.7V 150mAh or similar battery versus a bigger XXXmAh battery all over the internet for a variety of RC aircraft.  Larger capacity batteries may give slightly longer flight times, but they are heavier which throws off COG and puts extra strain on the motors, etc.  I use the stock 150mAh batteries, but that's just my choice.  I also have 4 S107G's (3 flying) and 2 S107N's so I have plenty of flight time if/when I choose to fly.  

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