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Lipo battery

Started by sreekumar, January 04, 2019, 04:04:21 PM

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K K Iyer

Looks ok.
Now show us what the lipo checker says

newpg202

Are all the individual cells showing 3.8 v?
Qads: S500, F450, Robocat 250, GH160
Helis: XK K120, Trex 450, Alzrc X360, Alzrc Devil 380, Agile A5
Plane: FT mini Scout

K K Iyer

Quote from: newpg202 on January 04, 2019, 09:51:53 PM
Are all the individual cells showing 3.8 v?

My question is different.
What does the lipo checker say?

sreekumar

I connected lipo checker it shows first 2cE then ALL then 7.62 .. .3.81 and 3.81

sreekumar

Its main lead no shows any voltage in multimeter

newpg202

Check each cells individually directly on the leads for voltage and polarity, and refer Mr Ashok 2010's diagram. You can find the fult.
Qads: S500, F450, Robocat 250, GH160
Helis: XK K120, Trex 450, Alzrc X360, Alzrc Devil 380, Agile A5
Plane: FT mini Scout

K K Iyer


taksh

@sreekumar sir
which lipo checker u are using?
Image...?


tictoc21


tictoc21

Chk the pic

tictoc21

The negative main lead is connected to 2nd cells negative  or you can say 3rd cells positive. Hence you are able to measure the the voltage of 3rd cell.

tictoc21

@k k Iyer please look into this image. The balance lead connection are also wrong.

tictoc21

The corrected balance and main lead according to me are shown below

newpg202

 :salute:Nice job tictoc21.
Qads: S500, F450, Robocat 250, GH160
Helis: XK K120, Trex 450, Alzrc X360, Alzrc Devil 380, Agile A5
Plane: FT mini Scout

tictoc21


sreekumar

Yes discovered the issue....middle to last cell soldering there is a gap...I checked individual cell all ok and I touch with wire to plus and minus of middle and last cell.. I got 3s voltage in my checker....thank for all who helped me   ....I didn't soldered it..I want some help in soldering..

sreekumar

One more issue...in main lead they used red wire to connect negative  and black wire to positive...may be that is the reason my esc dead..if I connect my esc to battery  its positive goes to negative and negative goes to positive.

tictoc21

Yes chk it on multimeter, i assumed red wire as positive. Please soldered it properly.
Have a good day.

sreekumar