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« on: February 18, 2016, 01:03:58 PM »
Surajit Paul
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Hi Team,

Can i make a battery pack with 4 cell phone battery (2400 mhz) and run 2 of 12v dc motor..  Head Scratching
what will be the C rating for that pack?
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« Reply #1 on: February 18, 2016, 01:17:24 PM »
Tanmay.mathur
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Glide it up
somewhat 2c. depends upon battery type
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« Reply #2 on: February 18, 2016, 03:02:26 PM »
Partha Dubey
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If you are to soar high remember to look up......
hello.
did you mean mAh???...because mHz has nothing to do with batteries  Grin
and please remember that the voltage will be around 16.8.....might burn out the motors on putting load....
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« Reply #3 on: February 18, 2016, 03:41:17 PM »
Balakrishna Reddy
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Hey buddy don't say as 2 motors, say in terms of current draw because depending on load on the motor current draw changes and thereby many things can change with battery also.
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« Reply #4 on: February 18, 2016, 06:31:24 PM »
Sukhpreet
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yup i suppose.........
if you will connect them in series...then the voltage increases, if you connect them in parallel then capacity......Smiley

Talking about 18650



See for DIY  18650 pack on youtube Smiley
388a83e52194563f246212c220c1b2d7 (1).jpg
Re: phone battery in RC
* 388a83e52194563f246212c220c1b2d7 (1).jpg (13.22 KB, 400x200 - viewed 720 times.)
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« Reply #5 on: February 19, 2016, 01:04:05 PM »
Surajit Paul
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Hi Sukhpreet,

can you please suggest me thean if i connect 4 pice of 18650 laptop battery then how much discharge rate i will get?

I need around 12C discharge rate...

I need to run 4pice of 12v jhonson geared motor.

you can share your phone number also I will call you...
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« Reply #6 on: February 19, 2016, 01:20:13 PM »
Tanmay.mathur
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Glide it up
oh indeed then I suspect  u might need 18 batteries.  you'll need a 3s6p when using ncr18650be. 
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« Reply #7 on: February 19, 2016, 03:46:34 PM »
Surajit Paul
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you mean :-

4 parallel sets of 2 series battery, like below right.

====

can this pack will be suitable with 4 pice of 12v johnson motor,

it will provide 14.8v and 4400 mah but what will be the C rating.. ?
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« Reply #8 on: February 19, 2016, 09:50:06 PM »
Sukhpreet
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Then I don't recommend these batteries........
I saw 2 post of yours....one this and another one for was related to laptop batteries...... I think I replied at a wrong post .....:p

These are good for simple RC planes......basically light weight trainers which won't need much power..,...
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