mahwhafizphat
NAXJA Forum User
- Location
- Texas
Hey guys, kinda new here so take it easy on me.
Here's the deal, my jeep's battery has been running at 10-11 volts lately(about 2 weeks now). It's enough to start the vehicle, but just barely. I had the battery and alternator checked out at several places and even checked them myself and everything read like it should. I had the battery fully charged and put back in the jeep. As soon as I started it, the gauge on the dash went from ~14V to the usual ~10-11V. Here's the WEIRD part.
Once when I cranked it, it didn't have enough power to start. I have an Emergency Jump Starter(I'll call it the EJS). One of those battery shaped things with the positive and negative cables that hook up to the battery. I hooked it up, cranked the engine and it started fine. At this time, the battery was running at ~14V. I walked over and unhooked it and checked the dash gauge again and sure enough, 10-11V. With the switch turned off on the EJS, I hooked the cables back up to the battery, checked the gauge, ~14V again.
With no power running out of the EJS, just the pos to pos and the neg to neg, the voltage read correctly.
I unhooked everything, shut the engine off and restarted it.....10-11V
With the engine running, I hooked up a voltmeter to the battery, pos to pos and neg to neg, set it down and went to check the gauge. 14V!!!!!!!!!
What the hell is this? It does not make any sense to me. The battery refuses to charge under normal conditions with an alternator and battery that are supposedly OK, but when a connection is made like the aformentioned, the voltage shows at the proper reading.
Has anyone ever heard of this before? What is causing this?
1988 Jeep Cherokee, 4x4, 100k miles, 4.0L I6
Here's the deal, my jeep's battery has been running at 10-11 volts lately(about 2 weeks now). It's enough to start the vehicle, but just barely. I had the battery and alternator checked out at several places and even checked them myself and everything read like it should. I had the battery fully charged and put back in the jeep. As soon as I started it, the gauge on the dash went from ~14V to the usual ~10-11V. Here's the WEIRD part.
Once when I cranked it, it didn't have enough power to start. I have an Emergency Jump Starter(I'll call it the EJS). One of those battery shaped things with the positive and negative cables that hook up to the battery. I hooked it up, cranked the engine and it started fine. At this time, the battery was running at ~14V. I walked over and unhooked it and checked the dash gauge again and sure enough, 10-11V. With the switch turned off on the EJS, I hooked the cables back up to the battery, checked the gauge, ~14V again.
With no power running out of the EJS, just the pos to pos and the neg to neg, the voltage read correctly.
I unhooked everything, shut the engine off and restarted it.....10-11V
With the engine running, I hooked up a voltmeter to the battery, pos to pos and neg to neg, set it down and went to check the gauge. 14V!!!!!!!!!
What the hell is this? It does not make any sense to me. The battery refuses to charge under normal conditions with an alternator and battery that are supposedly OK, but when a connection is made like the aformentioned, the voltage shows at the proper reading.
Has anyone ever heard of this before? What is causing this?
1988 Jeep Cherokee, 4x4, 100k miles, 4.0L I6