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Old 07-20-2007, 03:38 AM   #1
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Default NEED MAMBA MAX 6900 HELP!!!!!

hi everyone.im sorta new at this.i had my car for about 2 months now and finnaly decided to get the mamba max 6900.i instaled it and put my batteries in there but they all fried up!what do i need battery wize so they dont fry up any more.what type of nimh battery do i need.lipo is kinda expensive for me.please respond asap!!thanks
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Old 07-20-2007, 04:02 AM   #2
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i forgot to ask some questions.does the wires on the battery have to be a certin gauge?does it nees a certin amount of amps discharged?does it have to ba a 8 cell battery?gosh...ive lost 80$in batteries.i have no idea whats going on.the batteries i HAD ran good with my 30t motor.i need help b4 i buy some new batteries.thanks
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Old 07-20-2007, 04:30 AM   #3
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Default Batt's

First off make sure you wired it correctlly. I'm gonna assum it is, so it's probablly putting to much strain on the batteries. Castle Creations say that for the 6900 and 7700 you must run 8 cell Nimh or 2 cell lipo. www.castlecreations.com/products/mamba_max.html

You have two options, you can either upgrade to lipo, which you would also need a lipo charger or you can just by the 5700 motor for probablly less than $100.

Hope this helps, good luck.
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Old 07-20-2007, 04:39 AM   #4
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socalbomber:

You do not need to run 8cells or a li-po with out 6900 or 7700 motors. After saying that you do need to run quality batteries and connectors.

You do not mention what batteries and connectors you are currently using.

I would recommend Deans plugs with 12/13 gauge wire as well as IB4200s or EP4200s.

Later,
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Old 07-21-2007, 02:21 AM   #5
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hi..i was using some generic batteries off ebay with the standard tamaya plugs.the car would stop and go and then stop all together.i got a real bad burn from the damm batteries.so you say deans plugs,gauge of wire matters and some name brand 4200 batteries?thanks
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Old 07-21-2007, 08:12 AM   #6
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Don't have to be top of the line batteries, but matched sells I believe do make a difference. If you are using a Tamiya plug that will definitely cause a BIG problem. Probably one of the worst if not worst connector you could use in your current application.

Later,
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Old 07-21-2007, 08:49 AM   #7
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Quote:
Originally Posted by _pilot_ View Post
First off make sure you wired it correctlly. I'm gonna assum it is, so it's probablly putting to much strain on the batteries. Castle Creations say that for the 6900 and 7700 you must run 8 cell Nimh or 2 cell lipo. www.castlecreations.com/products/mamba_max.html
Actually it's saying you can't run OVER 8 cell NiMH or 2 cell lipo. With the other motors you can run 6-12 NiMH or 2-3s LiPo.
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Old 07-21-2007, 03:52 PM   #8
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Quote:
Originally Posted by _pilot_ View Post
First off make sure you wired it correctlly. I'm gonna assum it is, so it's probablly putting to much strain on the batteries. Castle Creations say that for the 6900 and 7700 you must run 8 cell Nimh or 2 cell lipo. www.castlecreations.com/products/mamba_max.html

You have two options, you can either upgrade to lipo, which you would also need a lipo charger or you can just by the 5700 motor for probablly less than $100.

Hope this helps, good luck.
You really need to read better. It says 6-8 NiCad/NiMh MAX or 2s LiPo MAX for the 6900.
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Old 07-21-2007, 04:47 PM   #9
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Also check your gearing you may be gear to high. The deans would be the first starting point. The Tamiya plug usually melt or short out.
I cant believe they are even still on the market.
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Old 07-21-2007, 09:45 PM   #10
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yea thats what messed up was the plugs.they melted a bit and then the wires to the battery melted and batteries got hella hot.thank god the mamba is ok.thanks for everyones feedback and hope to speak to all of you soon.i will buy some decent batteries with 13gauge wire and deans plugs.i pray it works as i dont want to waste a 230$system!
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