GX460 & GXOR B.S. thread
- Thread starter Roody
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I’d be ok with that.
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- #3,243
At the end of December I had Costco warranty a battery and it turned out to have a bad cell. No issues since then, all was fine.
GX battery was dead again this morning. My portable jump box got it started without too much fuss.
For context, I haven't really been driving the GX much. I put maybe 5 miles on it over the last 3 weeks since I've been driving press cars. It has also been abnormally cold here, with stretches of days when temperatures at or below 0-15*F with wind chills as low as -30*F.
The battery is holding 13.5-13.7 volts according to my ScanGauge. Hopefully this means it isn't a charging issue but rather just my negligence that drained it over such a cold stretch. I'll test the battery and such with a multimeter and battery tester tonight or this weekend and bring this battery back to Costco if need be, but I'm just really holding out hope that there isn't some kind of parasitic draw. I disconnected all of my accessory items (winch, lights x2, GMRS) for the time being to isolate out anything that could be affecting it. Crossing my fingers.
GX battery was dead again this morning. My portable jump box got it started without too much fuss.
For context, I haven't really been driving the GX much. I put maybe 5 miles on it over the last 3 weeks since I've been driving press cars. It has also been abnormally cold here, with stretches of days when temperatures at or below 0-15*F with wind chills as low as -30*F.
The battery is holding 13.5-13.7 volts according to my ScanGauge. Hopefully this means it isn't a charging issue but rather just my negligence that drained it over such a cold stretch. I'll test the battery and such with a multimeter and battery tester tonight or this weekend and bring this battery back to Costco if need be, but I'm just really holding out hope that there isn't some kind of parasitic draw. I disconnected all of my accessory items (winch, lights x2, GMRS) for the time being to isolate out anything that could be affecting it. Crossing my fingers.
Might be time for a battery tender? They're cheap enough and once you have the little pigtail plug installed some place convenient, you probably don't even need to open the hood to connect/disconnect.
I'd suggest running a parasitic draw test. You'll need a 10 amp multimeter but they aren't hard to run. You put the multimeter in current (amperage) mode, unhook the negative battery cable and move it away from the negative battery post, put one lead on the negative battery post, and the other lead on the negative disconnected battery cable. This routes all current though the multimeter, so it will tell you the amps the rig is pulling.
With everything off and the rig locked, you should have no more than 50 milliamps (0.05 amps) of draw through the multimeter. Assuming you have a 50-amp/hour battery that was fully charged when the rig is parked, 50 milliamps of draw would have the battery half discharged after three solid weeks of sitting. A half-discharged battery should be able to start the rig.
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- #3,246
I have only used battery tenders in the past on ATVs/UTVs but that's not a bad idea. Problem is my GX is street parked a lot. Maybe there's some kind of solar battery tender?
Awesome info, thanks. Will try to give that a go this weekend.
I just had to replace my 5 year old Odyssey. I don't drive the GX much in the winter (it is my off road/overlanding rig) and I obviously should have put a tender on it when I went to Thailand in December. 4.5 volts, yeah.
I could have a go at reviving it, but I need a battery I can trust for backcountry outings. A new Odyssey Performance Series 27F is $420. Ouch. So I bought a Duracell 27F AGM from Batteries Plus for $190 less. We'll see how it does.
I could have a go at reviving it, but I need a battery I can trust for backcountry outings. A new Odyssey Performance Series 27F is $420. Ouch. So I bought a Duracell 27F AGM from Batteries Plus for $190 less. We'll see how it does.
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- #3,248
Potentially useless update, but maybe good to keep on the list of psuedo-diag
Tested the battery with a battery tester. This is after I ran the truck for a half hour this morning and then again for 20 minutes mid-day. This test was with the truck off.
Results were:
Voltage: 12.04V
Rated: 710CCA
Measured: 428CCA
Resistance: 7.20 Milliohms
Life (SOH): 33.0%
State of Charge: 48%
"POOR"
Ran the truck for a few minutes and tested it again. Results:
Voltage: 12.27V
Rated: 710CCA
Measured: 391CCA
Resistance: 7.286Milliohms
Life (SOH): 27.4%
State of Charge: 66%
"POOR"
I'll admit I'm in a bit over my head on this one, but maybe the battery itself is actually bad?
To also add to this make sure the vehicle's been off for at least 30 minutes before you run the test to ensure all modules have powered down.
Solar would be a great option, assuming you live in a neighborhood where you don't have to worry about some punk stealing your solar panels.
With this weather it seems to be common. I've had a dozen or so nearby that have lost batteries in under a week of non-use. It's crazy. I start all my vehicles every day for 10-15 minutes when temps are twenties or below.
I'd put it on an trickle charger like a NOCO Genius and check it again in the morning. But, yeah that's pretty crappy battery performance. If it's still poor after trickle charging all night, you have a bad battery.
If the battery is bad, I'd still run the parasitic draw test. It's totally possible you have a parasitic draw that is contributing to a string of dead batteries. If you run the test and it passes, then you have ruled out a parasitic draw and can conclude it was likely the batteries themselves.
I left our Odyssey camper battery hooked up all winter. Come spring, it was deader than a doornail. It took around 2 days on a Noco Genius to trickle charge back to health and it's been fine since. That was around 3 years ago. Granted that battery was only 1 year old....at 5 years, I'd probably replace it too.
Hiluxforever
SILVER Star
My odyssey has been fully dead twice and I have resurrected it.
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- #3,255
Not so much concerned about that but would probably try to put it somewhere discrete. The HF solar tender looks like you can put it on the inside of the windshield which wouldn't be a bad place.
That's reassuring to hear at least
I need to grab one of those chargers... and find a way to get it plugged in on the street haha
And good call. I'll try to do that test either way
You can also remove the battery and bring it inside if you don't want to run a long extension cord to the street.
FWIW, I hardmounted a Noco charger to my tractor (which will sit for a month plus between uses) when I installed a block heater in it. If the rig is regularly sitting for weeks on end and driven short distances, a hardmounted charger would be a good idea.
Ho-ree sheet !!!!
After two years of owning my truck, today I was randomly pressing buttons on the fob, and I learned I have factory remote start
Press LOCK press LOCK press LOCK hold LOCK... starts
This is a pleasant surprise and yet I'm mildly annoyed with myself for just now figuring it out
All the cold mornings I could have been toasty warm, gone, like tears in rain
After two years of owning my truck, today I was randomly pressing buttons on the fob, and I learned I have factory remote start
Press LOCK press LOCK press LOCK hold LOCK... starts
This is a pleasant surprise and yet I'm mildly annoyed with myself for just now figuring it out
All the cold mornings I could have been toasty warm, gone, like tears in rain
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Hiluxforever
SILVER Star
I will have to try this.
One of the first things I looked for on the GX 2 years ago when I got it. It will only run for 10 minutes but allows you to do it again, once, for 20 minutes total. Also you have to have a certain percentage of fuel in the tank for it to work but I never go below 1/4 tank especially in the winter. A lot of people bitch about it turning off when you open the door. Duh you don't even have to stick the key to restart it just hit a button a non issue as far as I am concerned. Especially bundled up with heavy gloves on.
The range of the FOB leaves a lot to be desired and even opening the house door to start it kind of defeats of the purpose. Enter GX*BOB range extender trick. It works for the remote start as well because it is tied to the remote lock sequence.
Enform and remote start app only works with 19 and above that is when they went to 4G. 18 and prior years had 3G which has been deprecated. So I called Lexus to find out how much it cost to get just the Lexus Enform Remote from Lexus Connected Services. $60 a year and she threw in Enform Safety Connect. After that expired I called back last Fall and they let me have it for another year for $60 again. For $60 I'll take it, the remote app also only runs for 10 minutes but allows you to restart for an additional 10 minutes if you want. Also shows a GPS map of where you last parked your rig. Not that I have ever forgot where I parked someplace. At least that I am willing to admit out loud. It could also come in handy in case god forbid it ever got stolen.
One of the first things I looked for on the GX 2 years ago when I got it. It will only run for 10 minutes but allows you to do it again, once, for 20 minutes total. Also you have to have a certain percentage of fuel in the tank for it to work but I never go below 1/4 tank especially in the winter. A lot of people bitch about it turning off when you open the door. Duh you don't even have to stick the key to restart it just hit a button a non issue as far as I am concerned. Especially bundled up with heavy gloves on.
The range of the FOB leaves a lot to be desired and even opening the house door to start it kind of defeats of the purpose. Enter GX*BOB range extender trick. It works for the remote start as well because it is tied to the remote lock sequence.
Enform and remote start app only works with 19 and above that is when they went to 4G. 18 and prior years had 3G which has been deprecated. So I called Lexus to find out how much it cost to get just the Lexus Enform Remote from Lexus Connected Services. $60 a year and she threw in Enform Safety Connect. After that expired I called back last Fall and they let me have it for another year for $60 again. For $60 I'll take it, the remote app also only runs for 10 minutes but allows you to restart for an additional 10 minutes if you want. Also shows a GPS map of where you last parked your rig. Not that I have ever forgot where I parked someplace. At least that I am willing to admit out loud. It could also come in handy in case god forbid it ever got stolen.
There's a cut off because my 2010 doesn't use any cellular or Enform for the remote start. Not sure when that was a thing but my guess is post-2013.