jeep won't start

i have a 95 Jeep Grand Cherokee 4.0 6 Cylinder lots of lights, tvs, and sound systemalready did big 3. It won't start i will be getiing an H/O alt but i just want to get it running again.  The car runs once it is jump started and does not stall so the alt isnt bad it starts right away and shows 13 volts when running when jumped so i don't think its the starter but if i use a jumper pack showing 12.84 volts car wont start, the fan starts to turn but then just clicking. can anyone see a problem is it eletrical or is it fuel lines etc. any help is appreciated very muchBeep Beep who got the keys to the Jeep

surely an electrical issue, could be a bad battery, or even just bad connections.

bad battery. take it out and get it load tested (with it out of the vehicle).

ya i have a 99 jeep cherokee v8 theyre really sensitive to low voltage.. anything less then about 12.5 they wont run. also if your running a deep cycle/gel battery put a slow charge on it to recharge but ya i blew a cell in a normal battery, the alternators are farely strong though. try a blue or yellow top optima that cured my problems.Ben carnes-2ma hk15x2 + 5500d

i should have mentioned i have an optima redtop i plan on getting a battery charger that i can keep plugged in over nightBeep Beep who got the keys to the Jeep

thejetmolina wrote: i should have mentioned i have an optima redtop i plan on getting a battery charger that i can keep plugged in over night

which will not help or do anything....but anyway.....

Aren't these optimas deep cycle CK?  If so as you say throw it away and get the biggest meanest regular non deep cycle battery you can find that will still fit.  Used to use a type 068 600amp rate from a R/Royce in my Maximas, never any grief.

they are. but optimas dont do well with a "trickle charge". thats what i meant by my earlier comment.

See my comments above, just don't get a deep cycle battery, they're wonderful for lawn mowers.