auto shut down during booting and os loading

i know my title stink but i have been having this problem lately i will start up my mac first thing it is ask me for is to change date and time than i start doing whatever i need to do and boom shut down. so i try to boot it up again and it shut down during the middle of the boot i have to do this ten more time before it boots up i am complete lost i have tried everything and still don't know what it could be i was going to take it to apple to see if i can get a free diagnose but would rather figure it out without have to drive there i just replaced the battery not to long ago and hard drive with hard drive wire in the past month but this used to do it before just more frequently now. any help is greatly received thank you so much

samsung evo 850 hard drive if anyone was wondering