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can i go NIMH to LIPO?..Exceed RC Raptor G2 3D

Discussion in 'Copters' started by fieryknight, Aug 4, 2016.

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  1. fieryknight

    fieryknight New Member

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    wanting to know if it is possible to swap from 12v nimh 650 mah to a lipo setup...
    cant find much info on the electronis in this heli....being a older one....

    Exceed RC Raptor G2 3d

    has a 380 motor brushed...
    with rx-602 receiver w built in esc
    was told its a 30amp esc but with no info to back this up.....im not sure


    Thnx for any help
     
  2. lout

    lout Studio Forums Elite
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    The short answer is yes, but.

    You will need to get a low voltage alarm and test how long flight time you get before the alarm goes off, then set a timer that will go off whilst your flying that will give you enough time to land just before the LVA goes off. This way you will keep you battery in good condition.

    Lipo cut-off not a good idea in heli's... :D

    Oh, and 3S is where you want to be with a lipo.
     
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  3. fieryknight

    fieryknight New Member

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    Thnx for the quick response :)

    since this is a 12v setup...........I do have a 3s 11.1v 1500mah 20c battery from an older walkera would this be ok to run ?........

    and Thnx again.........

    only place to get a battery for this is china....30-45 day shipping times...lol.....or make one
     
  4. lout

    lout Studio Forums Elite
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    That'd be fine so long as it's fits. I didn't mention the voltage as I had a brain fade moment and couldn't remember the voltage! The 12v nimh would drop down to the same as the lipo anyway.
     
  5. fieryknight

    fieryknight New Member

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    so its a go for pulling out my 12v 650mah nimh n put in my 11.1v 1500-1800 lipo.....

    sry ur last message had me a lil ?????


    :)....Thnx so much for the help guys
     
  6. Magnat007

    Magnat007 Proud SCX10 Owner
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    It Should be OK to run but no guarentees.
    Some ESC's like the voltage of a LIPO but not the Amperage..

    Sadly it could be a case of try and see but then watch as the ESC smoulders into ash

    Your 650mah vs 1800mah will just mean a longer run time..

    The problem we have is we have not tested this sort of set up out..
    You could encounter all sorts of problems from an unbalanced Helicopter through to it just catching on fire..
    A Low voltage alarm will be essential.. As unlike NIMH you dont run LIPO until they are flat.. you run them until the cells hit a certain level.
     
  7. fieryknight

    fieryknight New Member

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    thnx again........I have a older 11.1 that's 20c....n jus got a new 11.1 that's 30c......I may try the older one first....fingers crossed
     
  8. drzoo2

    drzoo2 Studio Forums Elite
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    Quite honestly, if the ESC is matched correctly for the application, it should not have to rely on the higher source impedance from a NiMH battery for any protection. As long as the current capability of a the ESC is better than the motor draw, your only limiting factor is the upper working voltage.

    If a LiPo causes an ESC failure, there were/are other issues.

    Fully charged 3S LiPo is 12.6v
     
  9. fieryknight

    fieryknight New Member

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    plus not certain but I think this receiver will take up to 30 amps
     
  10. 00whynot

    00whynot Moderator
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    another thing to think of is the wight difference of your batteries. you might have to play with it to get you center of gravity where it should be. do that before you ever try to get it in the air.
     
  11. fieryknight

    fieryknight New Member

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    Cool,thnx for the help......will let you know how she goes when my LVA gets here
     
  12. MikeHall

    MikeHall New Member

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    Hi..i am anew user here. As per my knowledge you will need to get a low voltage alarm and test how long flight time you get before the alarm goes off, then set a timer that will go off whilst your flying that will give you enough time to land just before the LVA goes off. This way you will keep you battery in good condition.

    turnkey pcb manufacturing
     
    #12 MikeHall, Aug 16, 2016
    Last edited: Sep 28, 2016

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