Li-po's
All depends on how you are going to use the car, bashing or racing ?
The higher the Mah ( milliamp hour ) rating = longer run time
The higher the 'C' rating = how much current ( amps ) the battery will put out.
If you are bashing, lower 'C' numbers like 20 - 35 C will be fine just aim for as much capacity as possible within your budget.
If you are racing, Higher 'C' numbers like 40 - 90 C will be better as the pack will give out more power, but also best to get higher capacity packs.
Some examples of what you might see on a pack :-
2200mah 20C. Low capacity - runtime short. 20C. Lower current output This would be hopefully now be a really cheap pack of Li-po's.
5300mah 40C Over 2x capacity of the 2200's with 2x current output
This would now be a 'middle of the road' pack of Li-po's.
6000mah 90C Not much more capacity than 5300's but still an improvement on runtime but a big jump in 'C' rating.
These would be the 'Bugatti Veyron' of Li-po's and come priced accordingly.
Best to see what your local model shop has first and or the Trade section of Oople as bargains come up most days !
I am not going to say buy from overseas but there are bargains to be had if you look in the right places and are prepared to wait a week or two.
This is just a simple guide and no doubt someone else will write a better explanation.
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