libprs500 and battery usage

[roofone]

I read in another recent thread that transferring books using the Sony software will significantly improve battery life -- something about the Sony software doing some sort of formatting that reduces the amount of processing the reader has to do.

True? If so, does libprs500 do this formatting?

(I ask because my battery performance has been awful, and I've been converting books to LRF using libprs500, but loading them with the Sony software -- how tedious!)

Thanks!