My 03 Navigator's battery (11 months old Sears) started going dead about a week ago.
I came out to start the truck and the battery was dead, was fine the day before, I jump started the truck drove for about an hour and a half. I stopped three times and truck started. Parked it over night and it was dead in the morning. At first I suspected the radio/navigation system, it didn't turn off with the ignition. When I turn the radio off then jump the battery, the radio is on again. Also I found the battery's positive connector was loose enough to just lift the thing right off the battery. It's worn to bad to tighten. Now I think the batteries fried, any suggestions Thanks............
2003 Lincoln Navigator 68,000 miles the battery is Sears, about 11 months old
Best Answer
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Mr_Shiftright
Member Posts: 64,481
I'd buy a new cable and then SLOW charge the battery. After that, you can test for a parasitic drain. Here are some pointers on how to do that.
http://flashoffroad.com/electrical/Batteries/BatteryDrain.html
One assumption you shouldn't be making is that just driving around for a little while charges up a completely dead battery---it doesn't---at best it just gives it a surface charge.
You may also want to have your battery 'load-tested", maybe at Sears where you bought it---sometimes, if a battery goes dead, dead, dead, it develops a mortal wound so to speak from which it cannot recover. Even slow charging doesn't bring them back sometimes.
Also, last thought---be careful about jump starting a completely dead battery---wear eye protection and if the jumper cables heat up, BACK OFF and disconnect. Overheating speeds up electrolysis, which speeds up hydrogen gas production, which....explodes.
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