Anyone care to school me on batteries?

[Thirdgen89GTA]

So, I've had the brushless itch for a while now. But it is a hefty price tag to convert, and honestly all of my RC sits involate because I'm just plain tired of glow plugs, and glow ignitors, bumpboxes, tuning, air leaks....etc the whole nitro shebang. The maintenance is getting expensive when its $8-$10 for a turbo plug here, and $33 a gallon for nitro there.

I've been helping my friend out alot lately on his new house. Tons of man hours, but he got an awesome deal on it. In thanks tonight, for an Christmas slash thank you gift he presented me with a MMM 2200kv combo for my truggy and a charger. I was blown away, its always been a tit for tat deal with us. We've always counted on each other to help out with projects, usually 1:1 car projects.

So as of the moment I have a Castle MMM 2200kv combo and a 6s traxxas charger. I know the traxxas charger is not the best. But being that it was a gift, and I didn't pay for it, I won't refuse it.

I'm a basher, I spend some time at the track, especially during winter, but its always open session and never racing.

Now though comes my lack of knowledge. I understand the whole Series rating and the C ratings, and how they work out mathematically. But I also have read about how MaxAmps has overstated specs. But I'm not sure what else to go with as far as battery brands go. I already know that my budget won't allow me right now to spend the $$$ on nice batteries, or even batteries that will let me achieve 55-60mph speeds for the run times I'd like. I have a budget of about $150 +/- a bit for batteries. Run time is more important to me, as long as I can reach 40mph or so.

The existing setup parts

Jammin X1 CRT Pro
Spek DS3 radio + servos
CC MMM 2200kv

Parts I know I need to order
RCM Jammin X1 CRT motor mount (still has the larger 62t spur)

Parts I am not sure on
?Batteries
?Battery Tray (single because of simplicity, prefer dual because of balance though) Can't buy this till I know what batteries I'm going with I guess.

I did a search for Jammin conversions, but rarely saw anyone use a twin pack setup for balance, is it just too difficult? Are there clearance issues, does the can hit the steering bellcrank? I measured out about 70mm and I think it'll fit that way if it mounts.

According to the Brushless setup guide this is what i get for a 10lb X1 CRT for a 15m runtime and ~40mph it recommends a 6s 25c 5000mah battery and a 10t pinion (read that the CRT mount may not let me use a pinion that small, can anyone confirm that?)

Vehicle selected: Ofna Jammin X1-CRT
Differential Ratio: 3.31:1
Transmission Ratio: 1:1
Spur Gear: 62 tooth, Mod 1.0 pitch
Tires: 5.65" diameter, 1.99 lbs total
Base Vehicle Weight: 10lbs
Desired Top Speed: 40mph
Desired Runtime: 15 minutes
Selected Battery Voltage: 22.2V (6s)
Selected Brushless Motor: Castle Creations 2200 Note: If the motor and ESC chosen happens to be available as a combo, it is advised to purchase the combo rather than the separate components.
Selected ESC: Castle Creations Mamba Monster

Recommendations
Next, we`ll provide the recommended battery capacity/C rating, pinion size, and motor mount based on the above information.

Battery capacity & C rating (?): 5000mAh, 26C or higher (Click for technical information)
Pinion tooth count: 10T, Mod 1.0 pitch, 5mm bore
Motor mount: RC-Monster motor mount
Battery tray: RC-Monster vehicle-specific tray

Below are some vehicle-specific options, notes, and handy links to a few other items you may need:

Vehicle-specific options: (none)
Vehicle-specific notes: (none)
Be sure to check out our selection of battery packs and battery chargers.