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Thread: Baja Radio Box Mod 5200 Mah Li-on batteries & regulator

  1. #1 Default Baja Radio Box Mod 5200 Mah Li-on batteries & regulator 
    I'm not crazy about NiCd or NiMh batteries. So I decided to mod my radio box to use the wasted room and install 2 - 2600 mah (total 5200 mah) 7.4 Lithium Ion batteries and a duralite switched regulator. The new switch was also mounted on the top of the box like it should have been in the first place.
    I used a dremel cutoff wheel to cut the box on the edges and bottom.
    A piece of thin aircraft plywood for the bottom, some CA glue and 20 minute epoxy putty. This also saved almost 5 oz of weight. The Li-on batteries with the regulator weigh 8 oz the 4200 NiMh battery pack is over 13 oz.
    I also modded my Nomadio Sensor radio for a 2 cell Li-on pack. I still use the stock Baja charging plug as I made an adapter for it to use my Li-on charger
    The advantage is higher capacity, less weight, no cycling or memory issues and the batteries don't self discharge. Anyway, I always like to have the electronics my way because that's the only connection between me and my car. Here's a link to the picture page.
    http://www.bashbuster.com/radioboxmod.htm

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  2. #2 Default  
    Join Date
    Feb 2007
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    Clayton
    7.4volt, have you used it yet? As cool as it sounds I would be concerned about burning up your receiver and servos

    Clayton
    Vertigo Performance


    http://5thscaleracing.com/vb/image.php?type=sigpic&userid=11&dateline=117807681  9
    Vertigo Easy Access Clutch Unit, The absolute quickest way to access the HPI Baja clutch.
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  3. #3 Default  
    WELL, let me just also add that 7.4v is actually 8.4v when fully charged.
    This is where the Duralite 6v regulator comes in. The regulator provides a consistent 6 volts to the system. I also have a regulator in my Sensor radio to use the Li-on batteries. So with a regulator there are no over voltage worries.
    These systems are used in all kinds of RC models to take advantage of the reliabilty and carefree benefits of Li-on batteries......
    YES,
    My system has been used and proven to work as do all the Duralite regulator systems. The bottom line to this setup is the 6v regulator.....
    Regulators are available in other voltages but the Baja is a 6v system and the Nomadio RX will take up to 16v and the TX up to 7v.
    So all tested, proven and always ready to goooooooooooo

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  4. #4 Default  
    Join Date
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    Clayton
    Very cool!!!

    Baja Radio Box Mod 5200 Mah Li-on batteries & regulator

    Clayton
    Vertigo Performance


    http://5thscaleracing.com/vb/image.php?type=sigpic&userid=11&dateline=117807681  9
    Vertigo Easy Access Clutch Unit, The absolute quickest way to access the HPI Baja clutch.
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  5. #5 Default  
    Join Date
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    That looks like a real nice job you did there Microdan? What's the run time with that setup?

    FG Leopard
    FG Monster Beetle 4x4
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  6. #6 Default  
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    Do you have any photos of the set up?

    Clayton
    Vertigo Performance


    http://5thscaleracing.com/vb/image.php?type=sigpic&userid=11&dateline=117807681  9
    Vertigo Easy Access Clutch Unit, The absolute quickest way to access the HPI Baja clutch.
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  7. #7 Default  
    Quote Originally Posted by Mlocker View Post
    Do you have any photos of the set up?
    Baja Radio Box Mod 5200 Mah Li-on batteries & regulator

    Baja Radio Box Mod 5200 Mah Li-on batteries & regulator

    Baja Radio Box Mod 5200 Mah Li-on batteries & regulator

    Baja Radio Box Mod 5200 Mah Li-on batteries & regulator

    Baja Radio Box Mod 5200 Mah Li-on batteries & regulator

    Baja Radio Box Mod 5200 Mah Li-on batteries & regulator

    Baja Radio Box Mod 5200 Mah Li-on batteries & regulator

    Baja Radio Box Mod 5200 Mah Li-on batteries & regulator

    Baja Radio Box Mod 5200 Mah Li-on batteries & regulator

    Baja Radio Box Mod 5200 Mah Li-on batteries & regulator

    Baja Radio Box Mod 5200 Mah Li-on batteries & regulator

    Baja Radio Box Mod 5200 Mah Li-on batteries & regulator

    Baja Radio Box Mod 5200 Mah Li-on batteries & regulator

    Baja Radio Box Mod 5200 Mah Li-on batteries & regulator

    Baja Radio Box Mod 5200 Mah Li-on batteries & regulator

    Baja Radio Box Mod 5200 Mah Li-on batteries & regulator

    Baja Radio Box Mod 5200 Mah Li-on batteries & regulator

    Baja Radio Box Mod 5200 Mah Li-on batteries & regulator



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  8. #8 Default  
    Quote Originally Posted by mradlin View Post
    That looks like a real nice job you did there Microdan? What's the run time with that setup?
    I never really timed it, but when you figure the stock battery is 2000mah and the Promatch battery is 4200mah and now I'm running 5200mah, it should run forever, just kidding. But it will run for hours and hours :eek: ..........more run time than you can stand...

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  9. #9 Default  
    Join Date
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    You have way too much time on your hands LOL!! nice work though!

    Clayton
    Vertigo Performance


    http://5thscaleracing.com/vb/image.php?type=sigpic&userid=11&dateline=117807681  9
    Vertigo Easy Access Clutch Unit, The absolute quickest way to access the HPI Baja clutch.
    Reply With Quote  

  10. #10 Default  
    Join Date
    May 2007
    Posts
    91
    Great work.. I may look into something like that.. I have a few batts laying around that are the same size.. just need the regulator..I really want the switch on top like you have... nice and clean...

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