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3rd November 2020, 08:54 | #11 | |
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Quote:
macafee2 |
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3rd November 2020, 09:36 | #12 |
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Like that idea. Think I'll try it on my 2011 Transit. The battery is definitely good, but something is draining it. Not had time to run any proper checks yet. Alternator voltage is 14.5 on tickover and the battery didn't drain when disconnected and was at 12.6 v. Connected and it lasts just over a week
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3rd November 2020, 15:45 | #13 |
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Another common source of battery drain on a diesel that hasn't been mentioned so far is the glowplug relay. If you find that there's still a significant current being drawn after more than 10 minutes or so of shutting down the car then might be worth checking there as well (IIRC it's underneath the ECU so gets wet before the ECU does.)
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4th November 2020, 09:15 | #14 | |
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Ooo, that's a thought. We did have some pretty biblical rain at the end of last week which could have overwhelmed the plenum drains and caused the glow plug relay to get its feet wet. I haven't noticed any water ingress to the car through the air intake, but then again, I can't currently get in the passenger side and the driver's access is severely limited... need to get her moved to have a root around. That's another one for the check list!
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4th November 2020, 10:13 | #15 | |
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R75 Saloon. Join Date: Feb 2009
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4th November 2020, 10:26 | #16 | |
This is my second home
R75 Saloon. Join Date: Feb 2009
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Also driving about in an attempt to put some juice back into your battery is the very worst way to do it. 24 hours on a charger against 24 hours driving around. The charger might cost you £1.00 and driving around to put the same amount of electricity into your battery might cost you £200.00 depending on how economic your car is on fuel. A battery charger and an alternator put out, maybe, about the same amount of electricity. In the region of 3 to 5 amps. The alternator is regulated. If you put on everything electrical in your car the alternator balances this then adds 5 amps.--This is stop the battery from over heating and boiling the electrolyte off.--- |
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4th November 2020, 10:32 | #17 | |
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Sounds likely then. I can normally leave her for a week and she'll fire up first time without any issues. The downpour we had Wednesday/Thursday last week probably overwhelmed the plenum drains (cleaned out in September) and caused the relay to get damp. Thinking about it, both times she's munched the battery after about 10 days is when there's been heavy rain. Plenum drains were well blocked on the first time. Must remember to use the car cover if I'm planning on leaving her standing for any time now. Problem is, this time wasn't planned...
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4th November 2020, 10:43 | #18 |
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I recently bought a solar charger from the AA which connects to the OBD socket as my battery died after leaving for an extended period. So far with little use it still starts on the button and seems to keep the battery topped up. Cost about £30 so not bad as I got fed up shelling out £120+ each time the battery died. Oh and I also checked for parasitic drain which is a must if you have a regular flattening of your battery. Mine was the Highline tv and satnav system killing the battery.
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4th November 2020, 10:51 | #19 | |
This is my second home
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There are some on the market now that can even charge in low light. I'm OK though as I live in France and I think we get a bit more sunshine per annum here.--- |
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4th November 2020, 11:28 | #20 | |
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Need to get the battery charged up first!
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