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I don't think that your load test is conclusive. But, you will see when you bring the battery in to the store. Here's hoping it is only the battery.
The auto parts store is like 1/2 mile away. If it happens to pass on their battery load tester, so be it. I won't lose any sleep over it. If it fails, I get a FREE replacement.
The auto parts store is like 1/2 mile away. If it happens to pass on their battery load tester, so be it. I won't lose any sleep over it. If it fails, I get a FREE replacement.
You say "if it happens to pass on their battery load tester, so be it", but then what? Check alternator?
You say "if it happens to pass on their battery load tester, so be it", but then what? Check alternator?
he has already checked the alternator and it’s putting out more than is required, 5 posts back and you’re doubting that the problem is either the alternator or the battery and is probably a parasitic draw. These cars are plagued with low battery/poor cranking problems for a number of proven reasons, i have never seen anyone conclusivly diagnose a parasitic draw. But i have heard the theory many times. The OP is working through the problem with structure and logic, he has proved his alternator and has proved his battery can take and hold a charge although the battery collapses under a load. Does that not point to a failing battery? You’re not being helpful by disagreeing and contradicting everyone else’s and somtimes your own opinions, are you an engineer by any chance?
he has already checked the alternator and it’s putting out more than is required, 5 posts back and you’re doubting that the problem is either the alternator or the battery and is probably a parasitic draw. These cars are plagued with low battery/poor cranking problems for a number of proven reasons, i have never seen anyone conclusivly diagnose a parasitic draw. But i have heard the theory many times. The OP is working through the problem with structure and logic, he has proved his alternator and has proved his battery can take and hold a charge although the battery collapses under a load. Does that not point to a failing battery? You’re not being helpful by disagreeing and contradicting everyone else’s and somtimes your own opinions, are you an engineer by any chance?
I am not disagreeing nor contradicting anyone, just pointing out the inconsistencies in the troubleshooting. It does look like perhaps a weak battery, but lets just wait and see what transpires at the shop, which is the first thing that the OP should have done.
BTW, its not by chance that I am an engineer and spare me the usual remarks about argumentative engineers.
Salut,
I am not disagreeing nor contradicting anyone, just pointing out the inconsistencies in the troubleshooting. It does look like perhaps a weak battery, but lets just wait and see what transpires at the shop, which is the first thing that the OP should have done.
BTW, its not by chance that I am an engineer and spare me the usual remarks about argumentative engineers.
Salut,
(I'm an Engineer too for almost 30 years. I've been in Electronics since I was 11.)
I just got back from the auto parts store. They did an hour test after fully charging. I was pretty sure my battery was bad. I get there and to my utter amazement, he says the battery is good. I'm like, wha?
I am quite sure it failed under load. He says, well the machine says its good. I said, did you test it under load? He said the machine did and it sits there. I said that's not a load test, that's storage. What load did you put on it, how much amperage and for how long, where is the printout you're supposed to give me so I can check? He said he threw it away.
I said, I told you it fully charges and also held storage charge for three days. Car starts fine too. It fails under load though. You need to test it under load. He comes over with the load tester, hooks it up and starts the test, it then says battery too low to continue. Charge battery to continue. I said, ok so you charged my battery fully and now its under voltage upon applying a load. What does that tell you? He immediately gave me a new battery.
LOL that funny. I dont even think it was tested correctly to begin with. I love my advance. Since I am in there almost every day they replace batteries and parts for me without testing or questions. It sucks because I move often so I have to build that rapport every few years with a new store.
Good work pressuring them to give you a new battery.
You know how Tesla has all their charging stations across the country?
For people like you where your car doesn't have access to a 110v power point for a trickle charger, there ought to be trickle charging stations. For example, at the mall when you know your going to be in there for a few hours.
(I'm an Engineer too for almost 30 years. I've been in Electronics since I was 11.)
I just got back from the auto parts store. They did an hour test after fully charging. I was pretty sure my battery was bad. I get there and to my utter amazement, he says the battery is good. I'm like, wha?
I am quite sure it failed under load. He says, well the machine says its good. I said, did you test it under load? He said the machine did and it sits there. I said that's not a load test, that's storage. What load did you put on it, how much amperage and for how long, where is the printout you're supposed to give me so I can check? He said he threw it away.
I said, I told you it fully charges and also held storage charge for three days. Car starts fine too. It fails under load though. You need to test it under load. He comes over with the load tester, hooks it up and starts the test, it then says battery too low to continue. Charge battery to continue. I said, ok so you charged my battery fully and now its under voltage upon applying a load. What does that tell you? He immediately gave me a new battery.
Good for you. The problem for most folks trying to get a shop to make good on the "warranty" for their battery, is that the shop will say that "the machine says your battery is good" when in fact it is bad. If your warranty has run out, then of course you need a new battery, even if the battery is still good.
Good work pressuring them to give you a new battery.
You know how Tesla has all their charging stations across the country?
For people like you where your car doesn't have access to a 110v power point for a trickle charger, there ought to be trickle charging stations. For example, at the mall when you know your going to be in there for a few hours.
I have attached a 5 watt solar panel to "boost" terminals to trickle charge the battery when ever it is parked outdoors, which is pretty much all the time, since I don't have a garage either at home or at work.
10-03-2020, 10:19 AM
