since everyone has been posting questions about LiPo's i figured i'd offer you all that i know to end the re-posting.
Example: 5000mAh 2s 20c LiPo pack
*the 5000 mAh represents the capacity of the battery, how much run time you will get out of it, does not effect speed except in terms of weight slowing you down. more mAh = more weight, more weight = slower car.
*The 2s represents how many cells are in the pack and how many volts it puts out, the example has 2 cells (7.4 volts) and each cell is usually 3.7 volts making this pack a 7.4 volt pack. the number of cells your battery has reflects a lot, usually speed. More volts = more speed. Also very important! your electronics can only handle so much, VXL for instance can only handle 11.1 volts, or 3s (hence the name VXL-3s)
*The 20c represents the discharge rate, or how much power it can put out, this number effects your burst speed. higher discharge rate = more punch from the start.
-If you want to make the switch to LiPo, yes your temps may go up, but most likely not on 2s if you've been running NiMH. 3s and anything above that will need adjustments in gearing to keep those temps in check. Also, when switching to LiPo, your going to need a charger that handles LiPo, and a balancer to keep each cell at the same voltage, if the cells are out of balance and one cell has more volts than the other, there's a big problem and possible danger as seen here:
keep your cells balanced! and its also a good idea to buy a LiPo sack! they have potential to save your home from burning to the ground.
skip to 1:50 to see the LiPo sack
-Next there are your options. What battery should I buy? to tell you the truth theres enough options to make a man go insane, but the most popular generic LiPo battery to buy now is ******* brand LiPo's.
******** brand LiPo's come in 1-10 cells, up to 6000 mAh and have a discharge rat usually between 20c and 30c for batteries that will fit traxxas models. ******* also sells ********** batteries, batteries that include **** carbon additives and a new electrolite slurry to produce better life cycles, discharge rates and charge currents. To me though, it seems a lot like buying chevron gas, they say there are "special" additives but make no noticeable difference to me.
*Then there are the name brand LiPo's like MaxAmps and Spec Point Concepts (SPC). Starting with SPC, their batteries are quality, and so is their customer service. These batteries are like ******* batteries in a lot of ways, but stand out in that some batteries they sell have 50c discharge rates. Thats a good amount of punch, but nothing close to MaxAmps, the big money batteries. Here's the link:
* MaxAmps batteries are sold in various voltages, and some even have up to 13,500mAh!!! thats around 81 minutes of run time! but thats not the amazing part. these batteries have proven discharge rates of 120c, and even 150c!!! thats a TON of punch. If you're a racer and are willing to spend that kind of money, i can positively say you will have the BIGGEST AND BADDEST car on the track, an advantage like that towers over the advantages of an LCG chassis or light weight any day of the week. Here's the link:
feel free to add to this post if you feel like i missed something, I really just wanted to nail the obvious.
Thanks to you all for reading.