yes , just decrease your throttle trim on your transmitter ,then take the throttle stick to down right then the led should come up,to disarm it take the stick to down left ,then do the esc calibration ,last night or you could say today morning :p i tried to lift the quad but then the battery catastrophe happened

if it goes below .5 volts just check its resistance using continuity tester, if it has no resistance then no way to recover.  

continuity tester??what is that?it is a part of multimeter?

Quote from: rohan123 on October 29, 2014, 10:39:02 PM
yes , just decrease your throttle trim on your transmitter ,then take the throttle stick to down right then the led should come up,to disarm it take the stick to down left ,then do the esc calibration ,last night or you could say today morning :p i tried to lift the quad but then the battery catastrophe happened

That's sad.
However happy that you are a bit ahead of, me , I am trying this for first time today.
Why? my 5th sem exams are going on, waited these much but can't resist to get this on air !! Even there is exam tomorrow

Continuity is in your multimeter, You can also use the low resistance range, Is your multimeter digital?

Measure the resistance of your damaged cell as you measure a actual resister, but consider polarity of multimeter probe matches that of battery.

yes ,and what have you taken EEE,ECE or ME?

ECE, Diploma

i dont get it

What ?

Quote from: sooraj.palakkad on October 29, 2014, 10:47:24 PM
Measure the resistance of your damaged cell as you measure a actual resister, but consider polarity of multimeter probe matches that of battery.

i didnt get this,i havent ever measured the resistance of a resistor

Is yours a digital multimeter? or analogue ?

But, don't bother about it now.., Put it connected to the charger and also connect the multimeter to live monitor charging voltage..., Check temperature change in Intervals.

but sooraj, if the battery is shorted internally then the charger feels as the terminals shorted if that connected to charge and this will be damage the charger.

does anybody know where can i get a battery 3s 2200mah for cheap like under 1k because i bought this one for 1.3k and didn't even use it once,can i remove the damaged cell ,they are at 4.2v

@akhil, that case can be understood buy checking heating up of charger, if battery is short, the charger will heat up like hell, isn't it?

@rohan, where did you bought this? Ask a replacement if you can.
Check PM

http://rcbazaar.com/products/1266-wolfpack-2200mah-25c-111v.aspx

If the worst turns out consider hobbysea.com for new battery, they offer original Zippy battery for 1.2K

sooraj my net is down so it will take time to upload ,if you want i can call you
How do i remove the damaged cell without damaging the battery and can i use the 2s 2200msh(if i can remove the cell) to test fly it for a few minutes??

No 2S cell will give only max. 8.2V out, It is no use with big multirotors, Can be used for small higher KV motors. Did you tried charging ?

with which charger the 5v or the lipo one??

With 5v mobile charger. for atleast few minutes or in worst case for hour, don't forget to monitor charging voltage, LiPo temp. , Charger temp lively, 

I gave up on the hexacopter for today, no use discharging the battery, my charger is still on it's way to home through EMS!! expect it tomorrow or Day after. Next try after exam tomorrow !!

ok i will do that,best of luck for your exam

i saw online that we should charge using a nicd charger.are they cheap?

The use of NiCd charger is what we are attaining with This cellphone charger, !!!,
Unlike a LiPo balance charger, A NiCad charger doesn't care the minimum voltage to detect battery, they just charge the battery to threshold level. But a Lipo charger detects a cell only if it is above 3V and if the cell voltage goes below this , a LiPo charger won't detect the cell.
   What we are trying with cellphone charger is to Charge the cell up to 3V so that LiPo balance charger could detect it .

If you are still afraid to charge this cell, give it a rest and take out any old computer SMPS, to check and tune your quad !!