I don't know about anyone else, but I have actually seen an improvement in by battery life with this OC mod.=D>
I had a stock battery, was crap, as everyone else's; having to place on charger 1-2x/day.
Decided to get the 3000mAh Mugen. Even that started to show a quick drain throughout the day from full charge.
But over the past 24hrs since I installed this OC mod, my % reading on the battery has decreased very little since taking it off the charger this morning. It is now 13hrs later, and it reads 93%. Last week, it would have read <60% by now.
Don't know why, but in my book, that's a BIG +.