Battery died again <Resolved>

[DispatchMinion]

Less than 2 months since my 2nd warranty replace and its dead again!
I have been seeing voltage while driving hover in the upper 14.6-9V range and spike every now and then above 15v (15.7v highest in the last 30 days) I have a Zus charger and a odb2 reader. the charger gives realtime battery voltage and trends
Full charge on a batt pack jump starter and no start or voltage increase, even saw a decrease after the fail to start. Cable jump from neighbor also no start and no change in voltage at all

Possible the spikes fried the starter? It does crank
Or the Alternator itself?

It was driven to and from work 2 days ago, sat for a day
Voltage after the jump attempts, 8.9v

 

[LibertyTC]

Do you have a major parasitic drain? On the next battery you will need to monitor that.
What model/ brand of battery is installed? If it has a bad cell it wont have enough volts.
What is the current standing battery voltage?
Voltage spikes above 15v is a sign that the ALT needs to be bench tested or replaced with a 136amp.

 

[DispatchMinion]

Do you have a major parasitic drain? On the next battery you will need to monitor that.
What model/ brand of battery is installed? If it has a bad cell it wont have enough volts.
What is the current standing battery voltage?
Voltage spikes above 15v is a sign that the ALT needs to be bench tested or replaced with a 136amp.

Dont think so. posted in jan
What did you do to your jeep today?

Last voltage was 8.9v

 

[DispatchMinion]

Home from work and got it to be jump-started finally. Drove the 3 mins to the "O" store and waited for 45mins for them to test it and its Good. Went to rockauto site and $128.00 for a 160amp Remanufactured one so bought it(cheapest of the list). Will get some help to replace it barring it being cold outside.

 

[DispatchMinion]

2 days ago, replaced it and drove 30 mins with no voltage spike. to work tonight and no voltage spike. considered resolved.