For fun running. I would probably go with this:
Maxamps 6000mah lipo battery pack 7.4V
Apache or Polyquest balancer (heard this are not bad and only $30)
MRC 989 or other lipo capable charger
Liposack or battery bunker
Mamba Max brushless system
get a voltage cutoff device so the battery doesn't go below I believe 6V?
I looked into this for awhile, and was going to do pretty much what I listed above but couldn't run the batteries in the class I would race them in.
I would go with a brushless unit if you can, you would really enjoy the minimal maintenance and the auto lipo cutoff on it as well. Not bad either for $179 for a complete system.
I know that there have been posts about not needing a balancer, but after looking it up and reading various posts of the pros and cons, the cost of the balancers I was advised on was minimal so I figured it could come in handy.
You should get some REALLY long runtime with the 6000mah. If you do the 8000mah they sell, you only need to raise up the post for the battery strap from what I understand. Guys are doing 20+ minute mains with nitros using T4s and the like with brushless and 8000mah lipos.
If you are worried about the fire hazard thing, you could also look into the apogee packs, the ones that are Limn. they have 3800mah packs for $75 I beleive.
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