Originally Posted by pistnbroke
after 25 years as an auto electrician I can tell you exactly whats wrong with these batteries ...they are sealed batteries and when the electrolyte level drops they fail...as soon as its out of warrantee prise off the glued on top and top it up or drill six holes in the top and seal with grommets after you topped it up ....we had loads of AC Delco batts which we replaced when the eye showed "clear" (low water ) ..we drilled them and toped them up and got about 3 more years .. If anybody wants to do this just ask and I will post a photo of where to drill...
Sadley mine as well just did this too a few weeks ago. Sat in garage for week(hot weather) out of the blue and it was very weak and had to be jumped. Went a week with ok crank but slower and yes I was remiss in just getting it done. Next time I left in garage for long weekend three days it was totally dead. Had free oil change sched so took it to dealer and asked while there to check system for draws. None were found. But battery was found to be MIA and going fast as it was only holding 327CCA long term right then and was full of fluid. It was also too small which lead to its MIA status. This was NOT a sealed OEM one but a PEP BOYS(Silver Star 24F) pop off tops one. The dealer had put this in to sell it used last Sept. Since it was a year old they would not warrenty as it was not thier battery. I could have taken to PEP BOYS or bitched at sales, but I was there in dealer. And I would get a 24F crap one back that would last in theory a year again if I went to PEP BOYS. So I had them put(installed free) in one. It is a KIA OEM (POP TOP) 37110-34000U ($89.75) that is made yes by Interstate and is the same thing as a MT-34. It has 845 crank 700CCA at 0 degrees and 120 min reserve. The Silver Star 24F had the recomended many times as good enough by you pstn 540CCA? with 75 min reserve. So I can not say your right on either count. Sealed versious Open. Nor factory recomended CCA versious more power. Our vechs need bigger batteries period. And I live in a more warm then not most of the year climate of USA. IF I still lived up north 540CCA would not cut it in the least long term! I also now do not have the issues with the sound system I did before where it was flakey in sound and station reception. Now with this Kia/MT-34.
24F is a 24 seris battery with FORD STYLE reversed terminals(correct + side for our Kia's) and no battery box mods needed.
You buy the right battery, you do not need to hammer and chisel the truck for it (or any) to fit and worry about hold downs that might or might not stay put.
And yes if I had the option I would have gone to AUTOZONE and gotten the DURALAST 34 for $85 with the much better warrenty.
When and if I ever need to I will next time. As the OEM KIA is first year free. Then prorated for three years. But I think 845 crank 700CCA 120 Min Reserve will do the trick long term now.