Battery drains overnight (twice.) `89 Accord Honda
One morning the car won't start because of a dead battery. I'd jump
started it and went on my way. The next morning, the battery had drained again. I pop the hood and turn on the ignition and notice the AC fan is running. Then I charge the battery I connect the battery terminal to the car. Just right when I connect the battery I hear a click (a relay click, with igntion off, right below the battery, but fan not running) that I'd never heard before. The click noise and drain problem are gone today, but I fear it will come back. What can I do to prevent my battery from draining again? Thanks |
You could pull one fuse at the time until the click goes away. How old is
your battey...I would have it load tested for free. You never know? Good Luck. |
"Sam Nickaby" > wrote in message .. . Sometimes intermittent battery drain with the engine off can drive you nuts. Simple reasons are lights (glove compartment, trunk, etc) that may not always turn off when they should, relays that lock on when they shouldnt. Since it doesnt always happen, it can be hard to find. You can -buy a battery disconnect, and decouple the battery every night. It works but is a PITA -remove a different fuse every night, until you find the circuit that is offending. (Some circuits are perhaps on fusible links, not fuses) Then start down the circuit, eliminate branches as you go. This happened to me on an 89 Buick Regal. I finally found it (whereas a dealership or independent mechanic might have given up, or at least charged me a ton) by the method mentioned above. The item causing the problem was a relay which activated the seat belt retractors...in the cold of the night, and even then only occasionally. It was enough to give me a flat battery every morning until the case was solved. |
You could also stick an ammeter in the line with the battery and
troubleshoot without all the waiting. You can wriggle connectors and fuses to your hearts content while watching the meter. just my .02 |
"ed" > wrote in message ... > You could also stick an ammeter in the line with the battery and > troubleshoot without all the waiting. > You can wriggle connectors and fuses to your hearts content while watching > the meter. > > just my .02 It is a good idea, and I have done it this way too. If the drain is only intermittent, then you can wait a long time to see the problem. Hours sometimes. Sometimes the xxxing intermittent is so difficult to find that you have to take the previously mentioned procedure. |
on our old 88 Accord, the fault was the flip lights motor was always turned
on even the car was off causing the battery to drain out. > wrote in message . .. > > "ed" > wrote in message > ... >> You could also stick an ammeter in the line with the battery and >> troubleshoot without all the waiting. >> You can wriggle connectors and fuses to your hearts content while >> watching >> the meter. >> >> just my .02 > > It is a good idea, and I have done it this way too. If the drain is only > intermittent, then you > can wait a long time to see the problem. Hours sometimes. > > Sometimes the xxxing intermittent is so difficult to find that you have to > take the > previously mentioned procedure. > > > |
Hi Sam,
Please see Section 10 in the FAQ on www.batteryfaq.org. Kindest regards, BiLL....... On Tue, 12 Jul 2005 23:35:42 GMT, "Sam Nickaby" > wrote: >One morning the car won't start because of a dead battery. I'd jump >started it and went on my way. The next morning, the battery had >drained again. I pop the hood and turn on the ignition and notice the >AC fan is running. Then I charge the battery I connect the battery >terminal to the car. Just right when I connect the battery I hear a >click (a relay click, with igntion off, right below the battery, but fan >not running) that I'd never heard before. The click noise and drain >problem are gone today, but I fear it will come back. What can I >do to prevent my battery from draining again? > >Thanks > > > > > > > > > > > > > > |
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