jeep grand Cherokee Laredo battery/starting problem

you know the connection from the battery to the frame/ground is paramount..this one not only needs the arc welding potential of it's own connection (source of problems) but supplies all of the components on the chassis ground...such as the ignition, fuel pump and the ECU...yes we don't want "brown power" that is to say varying amperage potential and variable voltages to try n' affect the ECU and it's conditional terms~...but since your startermotor is hungry for 300 cold cranking amps we will supply this need by cleaning of the lug of the 1/0 cable from the battery TO the frame~...clean the frame down to the metal and bolt the lug to the frame with a clean connection...and don't forget the battery cable that leads to the engine block too (near the alternator) this will supply your hungry 300 amp requirement~

...also the new tin/antimony batteries will not take a charge %10/year so five years is as much life as we can expect out of a battery anymore...any longer will play hell with your alternator~...cause DIM lights and undervoltage conditions affecting ALL accessories...change the battery...get a NEW one~

perhaps THIS renewed Ground potential with FRESH power will make it so that the problems disappear....as if by magic~ see you DO have an ace up your sleeve~

use a coarse wirebrush...wear a facemask or bandana around your face for this~....and some safety goggles....acid dust hurts your eyeballs....put the wirebrush in someone's hands who will do this for you for the cost of a BEER~

I really do not know, but IF battery/alternator test fine/new don't resolve issue, I'm hearing coils go out on these a lot which can cause some starting issues. Doesn't sound like what you're talking about, I'm not really a car person, just a slight possibility I thought I'd toss out.

coils are energized with reliable power...the battery has to be newer than five...all this advise is falling on DEAF ears...why do I bother?....to get insulted?....bwah~ this is all forthcoming advise....and you ain't buyin' it? I am sick of trying to help people...switching it off....all off...goodbye~

sounds like mabey the batt. cable is loose at the starter. It has its own cable, seperate from the one that powers the vehc.

Check the fuses tap tap the black square one's the relays to started yCam etc while someone cranks motor make sure the batt temp sensor clean and Bart sits good on it I have unplug my battery every night CD player and a growing messed up somewhere from stick trees ripping at the body