10/05/2024
I don't think I need to tell anyone this but, Times have changed. More people are using their cars like RV's because they have no place to live. More people are living off their jump boxes, more people are driving older german cars with all kinds of issues because they have no money. These are sad situations that we can not fix. And this leads often to a car that won't start and a dead battery many times. If you are on your 3rd replacement battery in the last 3 months, the battery is likely not the issue. A battery is like a bucket for power. Just because the bucket is empty doesn't mean the bucket is bad. Hence a dead battery is not always a bad battery. If the battery will still take a charge and hold the charge and then give out enough power to start the car, there's a fair chance the battery is still good. Or, it's not a bad battery, but it might be a bad battery for your situation. But you say, "well the new one lasted a lot longer". Yes, if you have a degenerative situation a new one can usually survive whatever assault it's taking longer, but it can still be ruined before you're ready to pay for another one.
Here's a couple of things to keep track of or consider that might help you solve the problem:
1) Discharged batteries don't magically all of a sudden get energy. If you think your battery is dead because the starter won't turn over the motor, but find that just 5, 10 15, or 20 minutes later the car magically starts, there's a 98% chance it is not your battery. It is likely a bad connection and the battery held its energy the whole time. And it is not necessarily a connection to the battery. The battery doesn't just start the car, there's a whole bunch of things the battery has to power that can fail or break to get a car to start the car and if one of those things has a weak or faulty connection, then that can explain your experience and why after you're 4th battery you're still facing the same issue. In many cases, the starter itself is the issue. "But I just replaced the starter!" So? If you think the battery can be the problem 4 times in a row, why isn't possible for it be the starter twice in a row? Now, the starter may not have the problem, it might be a problem in the systems that drive the starter or a connection to the starter and yes it can also be another bad starter. If you've ever seen someone tapping their starter with a small hammer - that's someone who has figured out what their problem is but hasn't replaced their starter yet.
Again, discharged batteries don't magically get energy again. It comes from your alternator when the car is running. When your car is off, everything you do in it that takes energy takes it out of the battery. If you take too much out of it, it may not have enough left to start the car. That's not the battery's fault. It's whatever activity you're doing and not stopping to think to run your car again before you cross that line of no return that is the issue. Now, there are degrees of that which can become the battery. As it ages, it will lose capacity and at a certain point, it can only provide a short time of energy for you. For example, if all you have on in your car is a phone or a laptop or your radio (AND I DO MEAN RADIO - not some modified arc welding sound system) and you can't go longer than 30 minutes, you may have other things on that you're unaware of, or it's time for another battery.
2) A bad connection to your battery can often be temporarily be overcome by attaching a big strong clamp to your battery connections like those of jumper cables, causing the battery to reconnect and start the car, but the jumper box gets the credit and the battery gets the blame.
3) Something is sneaking power away from your battery when your car is off and parked and draining it all the way down. A light that stays on is the obvious example of this but it can be many things, often today it's an amplifier a phone charger, an inverter, an accessory motor, the dash computer, etc. This will be most obvious overnight or longer because given enough time, even a small LED light can completely drain your battery. If you think this is your problem, disconnecting a lead to the battery when the car is parked is a temporary solution. That way whatever is draining from in the car - can't.
4) Yes, the alternator. It can completely fail - you'll know that real quick - your car probably won't run for more than an hour, then after you jump may run for between 5 and 15 minutes. But many times, like starters, they don't just fail. They can get weak first or intermittent (sometimes they charge, sometimes they don't) - these are the hardest to diagnose if they happen to be working when they're being tested. But I just had the alternator replaced! Refer to #1 for how understand this. :)
There are many more things but these are the most common we are seeing today. One last thing. If you got a great deal on a fancy European car that's older than 5 years, chances are you won't feel that way after your first $1,000 in frustrating electrical problems.
All this being said, we are just a battery shop. We are not mechanics if you ask us questions we can only answer them to the best of our knowledge which isn't qualified for most of the problems people ask us about - and that is just about everything. Let's get through 2024!