Derek - It's not that simple. Cell phone and laptops are made idiot proof. R/C racer will push the cell far beyond phone and laptop use.
Read this thread on R/C Groups to get an idea of what can happen even with careful use of LiPo cells:
http://www.rcgroups.com/forums/showthread.php?t=209187
This is what happen when you overcharge a lipo:
http://www.rcgroups.com/forums/attac...d=130372&stc=1