Harsh Jones

Em no. Its hard not to think about them even when they are covered

It would be awesome. Just like Baku's race is. This is why dictatorship is preferable to mobocracy. Things can get done

And heroin was available over the counter. As was cocaine. There was a lot of things happening less than 50 years ago. Whats your point

It had nothing to do with my feelings. What you said was just wrong. Very very wrong.

A mechanic friend of mine just sent me this pic. He charged up a completely dead battery from an old car he just bought. With a "smart" trickle charger. He just uses a small float charger to trick the "smart" charger into working. If it was an old "dumb" trickle charger, you wouldn't have to trick it. It would just power on when you plug it in. Which is the moral of the thread for anyone who just likes sharing information and learning. Instead of getting triggered by my tone. I guess I have to be more politically correct in the shop for some of the sensitive types.

This comment just shows how manifestly clueless and arrogant some people can manage to be. Amazing really. Here is an article explaining how to charge up a flat dead battery. And guess what. They are using a trickle charger. https://www.hagerty.com/media/maintenance-and-tech/wrenchin-wednesday-outsmarting-the-smart-battery-charger/

It was a drained battery genius. Not a dead flat battery genius. Understand that genius ? Or should I draw a picture.

If an old charger or a tricked "smart" charger fails, you can always try this

So a battery charger is the wrong tool to charge a battery. Got it. Anyway, you should be glad you learned something in this thread so you can stop throwing away functional batteries. Because that's what the owners manual of your charger says to do.

The problem with your "smart" charger is , if your battery is drained too much , it will refuse to charge it and mark it as defective. When there's nothing wrong with the battery at all. You will be throwing away a functioning battery. And the owners manual of your charger will instruct you to do this. But a "dumb" charger could just bring it back up to charge. But that's not a problem. You can trick your "smart" charger into being a dumb charger so that you can avoid throwing away your perfectly ok battery.

For those who don't know , "repair mode" on a "smart charger" is not some high tech thing. It is just like having a dumb charger hooked on in the first place. From Hagarty https://www.hagerty.com/media/maintenance-and-tech/wrenchin-wednesday-outsmarting-the-smart-battery-charger/ While you’ll often find that the battery is as dead as Zed and will need to be replaced, there’s an off-chance that the sulfate layer on the battery’s lead plates can be removed with a long recharge. If your “smart” charger doesn’t already have a desulfate mode, which bypasses some of these safety measures and charges the battery in waves to attempt to break-off and dissolve the lead-sulfur crust that have built up on the battery’s plates, you can use a helper battery to trick the charger into activating and providing its full juice — which will hopefully start the desulfation process inside the battery. In other words, a dumb charger is doing the exact same thing that a "smart" charger does when it in "repair" or "desulfate" mode. And is why dumb chargers can revive dead batteries

I was going to disconnect the battery but the car was parked out front. Disconnecting the battery disables all the security features. So anyone can break into my vehicle while I'm away.

If you get a drained battery tested , they are going to say to throw it out. So you are saying by default that you would throw away a good battery that just needs a charge. I have charged drain batteries a million times with old style constant voltage trickle chargers. And nobody said anything about a short amount of time. It takes at minimum a full night or all day.

Useless analogy. Goes to show you haven't wrenched on anything in your life

Nevermind. That answers my question. And you unintentionally tricked the smart charger into working. But somehow you couldn't understand that this is what I was explaining in my post

What would you do if the battery drained on your daily driver ? It hasn't happened in awhile has it ....

The "smart" charger probably found a reason to deny you a charge. Probably because it was hooked up. Completely unhook it and try again. This is an appropriate application for a "smart" charger but you never know what that thing is going to do. You could just get a dumb charger and put it on overnight every once and awhile.

And what would you do if you went on holidays for a week and something drained your daily driver battery in that time ? Or if your wife left the lights on all night ? Do you have an older trickle charger for those times ? Most people just jump start. Then they might get enough power to get their "smart" charger to work. I have seen people fry computers jump starting. I was always told growing up to just throw a drained battery on the trickle charger overnight. And avoid jump starting and bull<deleted> if possible. But with this new garbage, you just cant. Unless you trick them with a 9 volt battery or another car.

A trickle charger should be able to charge a drained battery. A battery in a car who's lights were left on all night. All of the dumb trickle chargers will do this. Are you seriously saying you would throw out a car battery because someone left the lights on all night ?

Batter mfg'ers always recommend slow charging. As opposed to fast charging or flash charging with a big charger. https://federalbatteries.com.au/news/battery-charging-do’s-and-dont’s#:~:text=the Right Charger-,The rule of thumb is 10% of the amp-hour,boil off the acid!). If you leave your lights on overnight and drain your battery, a dumb charger will charge it up overnight. Its just physics. If your car battery was ok enough to start the car and turn the lights on the day before, a dumb trickle charger will bring it back to life overnight. https://www.quora.com/Can-a-trickle-charger-charge-dead-car-batteries -We just did this last weekend when my daughter’s friend’s Jeep wouldn’t start. Yes she had left the headlights on overnight and by morning the battery was completely dead. We told her to leave it with us and get a ride home with another friend who had stayed at our house. My husband hooked the battery to our trickle charger and it recharged after about 6 hours. When she came to pick up the car, it started just fine. -Yes, a trickle charger can help charge a dead car battery. A trickle charger is designed to slowly charge a battery over a long period of time, which can be effective for reviving a dead battery. However, if the battery is completely dead, it may be best to use a regular battery charger to initially jump-start the charging process. Once the battery has some charge, a trickle charger can then be used to fully charge it over an extended period. -Yes, a trickle charger can charge a dead car battery, but it may take a longer time to fully charge the battery compared to other types of chargers. A trickle charger is designed to provide a low and steady charge to the battery over a longer period of time, which is ideal for maintaining the charge of a battery that is not being used regularly. However, if a car battery is completely dead, it may take several days to fully charge it using a trickle charger.

Hagerty even did an article on this. Which means it must be bad. I just wish I knew this earlier. Wrenchin’ Wednesday: Outsmarting the smart battery charger https://www.hagerty.com/media/maintenance-and-tech/wrenchin-wednesday-outsmarting-the-smart-battery-charger/

Ok nerd. Anyone who hasn't had shop rage before isn't a man

I have charged completely drained batteries on motorcycles and cars a million times. What are you talking about ? Deeply dead batteries. Its amazing what some patients and a good long trickle charge will do to some batteries. The one I am talking about this time was barely a year old and in a daily driver that sat for a week. I have a dumb charger on it right now and I know it will be back to charge in the morning. "smart" trickle chargers do not charge completely drained batteries. That's what makes them useless. Have you ever owned one ?

Your phone charger isn't designed to charge your phone battery after you run it dead either. But obviously it does happen and if the battery is in satisfactory condition, the charger will bring the battery back to 100%. The same is true for car battery trickle chargers. (the same was true until these new abortions) A dumb trickle charger will bring a drained battery back up to charge, everytime. And it is the method battery manufactures recommend.

You have that backwards. The "smart" charger has features in it for stupid people. Most of these "chargers" won't even start charging a battery that is below 10.x volts. If you think a battery below 10 volts is garbage, then again, you probably haven't wrenched on anything in your life.