Hi,

You have to solder that pin in its position also.

I have the charging plugs. But postage will be much more than original price.
The cost is Rs. 2/pin in Kolkata for male/female assembly and surely you can get this in any electronics spare shop. I have shown them to VC in Kolkata and he purchased a lot (2,3,4 pin) thin and thick one. I use them (Thick one, you can see inside DVD player power connecter PCB) in low current motor/ESC and Bat/ESC connector(10A ESC). and they works grate.

You can send me your address and I can send it to you (F.O.C.) by EMS.

thanks

There is no lock notch... There are four connecting pin holes and i one pin hole a metal pin got inserted nd not coming out.. I cant break it open as it is complete piece of connecting jack..
Should i take to electrical shop do some soldering or melting process to take that pin out..
the battery is working perfectly just i m not able to charge it which has become a problem..

I have an wolfpack 1300mah 2s lipo one of the cell is 3.83v and the other is 3.79v so my battery is unbalanced how do I balance it. I have an plain simple dummy charger. One more thing while i was checking the voltage of the individual cells using my multimeter and the balance lead by mistake i just let the 2 wires touch each other this led to the two wires melting and joining to each other. I immediately removed it.

Seems like the lipo is in real trouble. can you post pic of the damaged lead. 0.04V difference wont make a big issue as far as you are charging in a balanced charger. if you are referring to the 2-3S basic charger as dummy charger, you are wrong. though it doesnt have much functions, its good for lipo health since you cannot charge it more than 600mah.

Ashok.P

@rcrcnitesh
0.04 diff is not an imbalance issue at all.
The real issue is that you've blown one of the cells.
You are lucky it didn't explode in your face!
Surely you realise this - you've been on this forum over a year now!

The cell is still working properly.

Which one? The one you shorted?
How did you conclude that it is still working properly?
Had a similar experience while trying to solder bullets. Result: bloated battery, voltage zero!

I checked the voltage perfect 3.79v the cell is not bloated.

Congrats, you're lucky!

the voltage is open circuit voltage. there are lot of things that might go wrong with a millisecond short of a Lipo which cannot be determined with just open circuit voltage alone. capacity, IR, Discharge rate, max voltage hold are a few of them.

Ashok.P

Yep very lucky, though lipos arent a safety issue if you take care of them. Had tested a old one by shorting it multiple times, didnt catch fire but eventually died out(Do not try this at home or anywhere else without proper safety measures in place)

The minute difference in voltage can be caused by multimeter too.

Quote from: K K Iyer on September 19, 2014, 11:02:37 PM
Had a similar experience while trying to solder bullets.

Sir you are very courageous

@rcrcnitesh
Hard to believe a lipo cell is ok after shorting.
Suggestion:
Since already below 50%, first charge, and see voltage of each cell.
If more or less equal, within .05v, measure voltage under load.
Ie, monitor each cell while running a motor.
See if one cell drops faster than the other.
Could anything have happened to the internal resistance?

can we check the voltage of a lipo using a multimeter???

Quote from: rohan123 on September 20, 2014, 02:04:49 AM
can we check the voltage of a lipo using a multimeter???

Of course you can ......but u need to be careful....really careful

Iyer sir how do I monitor my lipo while charging using a basic charger as well as how do I monitor my lipo while it is under load.

I am now thinking on using this lipo on my tx and buying an new 1800mah2s for my plane.

Quote from: rcrcnitesh on September 20, 2014, 02:32:39 PM
Iyer sir how do I monitor my lipo while charging using a basic charger as well as how do I monitor my lipo while it is under load.

Connect a lipo checker/monitor to the balance plug. It will keep on displaying the voltage of each cell (and total) as the motor keeps running. Rs 180 from RC Bazaar. I normally do not take lipos below 3.6v per cell under load. On disconnecting they usually show 3.70-3.75.
Normally all cells will be within 0.02-0.04v of each other. I balance them if this is exceeded.
Much more difference is an indicator of a cell starting to go bad.

Or buy a wattmeter - can do some much more

1. Measure your battery's Volts total, %age left till eg 3.7,
2. Individual Cells
3. Use on the field to get your safe flying time (and set that on your Tx)
4. Measure Watts, Volts, Amps in a running motor

I have been using this one since I re-started in the hobby about 1 1/2 years ago; works good. Was called "Draupadi" by the RC Boltz cause everyone used her 



http://www.hobbyking.com/hobbyking/store/__10786__HobbyKing_HK_010_Wattmeter_Voltage_Analyzer.html

Quote from: sanjayrai55 on September 20, 2014, 05:23:06 PM
Was called "Draupadi" by the RC Boltz cause everyone used her

sir you just made my day ,and where can i get "Draupadi" in delhi or in india(online)?

Indian Hobby Shop has them for sale. Pls check with them.

is it a good idea to connect two 3s lipos of different capacity in parallel

will it work???  is it safe to connect them without damaging any of the two lipo???

It will work for sure,  - But it is not a good choice, as it is not efficient, cost wise and Weight wise .
Also there is chance of degrading of batteries faster - as the packs are not matched .

Yes you can , make sure that the packs are fully charged . If the packs have different C ratings , treat the whole pack with the lower c (3s 2000 mah 20c and 3s 5000 mah 40 c , treat the pack at 20 c)

nice information sir