battery question

[lysolflow]

i have about... 4 or 5 different batter hacks in my phone... i know for a fact that some of them do the same thing, but they may differ in osme other area.... if i install two battery hacks and they change the same thing in the registry editor, do they nullify themselves...

or do the jus go on about they biz if it sees that the status of somethin is already changed...