Random loss of electrical power

[Weazel09]

So before I begin yes it has new battery new terminals and new alt have checked them all

So I have a 2012 jk if u put ur keys in the ignition it will just lose all electrical power no light nothing sometimes the tipm will click until u pull the hot side of the battery however replacing the hot side doesn't always make the power come back iv check connections nothing loose or broken also I have tried hooking my jumper box up to it which makes the light come back on radio ect but wont allow the jeep to start it just clicks like it ain't getting enuff juice I take the battery out put it in my wife's vehicle and it fires up please help

 

[BLACKJKU]

Sounds like a bad ground, try running another ground from Battery to alternator case.

 

[Weazel09]

Sounds like a bad ground, try running another ground from Battery to alternator case.

Thanks will do

 

[Dirty Dog]

And, as always with any JK electrical problem, replace the crappy OEM battery clamps.

 

[tJKrider]

And, as always with any JK electrical problem, replace the crappy OEM battery clamps.

Read the OPs first sentence...

 

[Dirty Dog]

Read the OPs first sentence...

I did. Nothing in it indicates if they're still using the OEM clamps. Just that they're "new".

 

[tJKrider]

I did. Nothing in it indicates if they're still using the OEM clamps. Just that they're "new".

Fair point. I figured if someone is replacing them they're not going to use the same ones.

 

[Amen]

My 08 JKU went completely dark driving. I replaced the battery and terminals. The battery ended up dead so I had to jump start. The serpentine belt was jumping around. I took the alternator out and took it to be checked. It about broke their machine. The bearing was bad and would not turn.
Put new alternator in and now no issues