Bought an extra LP-E6 to go in my Canon grip when I bought the 7D and then bought a pair of unchipped batteries which came with their own included charger (if you use the Canon one it'll shut down the clones) which cost me 1/3rd of a one official LP-E6! And work just as well - easily lasting as long (but no info displayed in lcd).
Then bought a pair of chipped clones which, again, last as long as the official ones (and cost the same as the unchipped) - and I can use either charger