I have used the Battery MINDer on my cars for over 25 years. Recently I replaced the battery in my 2002 Corvette after 13 YEARS. The OEM battery in the Vette lasted for over 8 YEARS. For some reason, nobody on TH-cam seems to mention these devices. The big key with the Minder is that it uses a high FREQUENCY (not VOLTAGE) pulse to break up sulfite crystals. Therefore, no overvoltage. I connect the device to the battery if I will not be driving the car for 4 days.
I always thought the old style chargers lowered charging amps as the battery charged, indicated by the chargers gauge. Plus, I notice that any bubbling becomes less and less to eventually none as the battery gets a decent charge (in my estimation). In any case I never left one connected till the gauge got much below 2, for safety's sake.
I am pretty satisfied with my NAPA 12V 4A/6V 2A trickle charger with a digitat display. I have a 2018 Dodge Ram 2500 6.7L diesel that I seldom drive. Since moving to So. Utah 4 years ago I've only put approx. 200mi. on the truck. With gas prices the way they are I prefer our Prius C which avg. 50mpg. The NAPA charger seems to be working fine for me, maintaining the voltage on both batteries wired in parallel on the truck. Thanks for the very informative video...enjoy your day!
Good advice. I have been through many failed battery maintainers used on five vehicles, two outside.. The Delran Battery Tender is the only model that has lasted for years on my five vehicles. I use two of them on Subarus that are daily drivers. Modern cars only have 80 percent charge after a drive. They are not like the older cars. Their alternators don't really charge the battery, they just "maintain"it. So the batteries are chronically low.
I have one of those old Schmacher too. It's good for if the battery is really bad less than 4V cause the smart my not even recognize connection. Then I switch to the Battery Tender.
A heavy charge current from an unregulated charger must be closely monitored to prevent boiling, venting of dangerous gases and creation of bubbles on the battery plates. But the old-style, unregulated charger is the only way to begin recovery of a dead battery if a smart charger cannot.
Obsolete...not at all...I don't how many times I used a "smart charger" to charge a low battery(not dead) and many hours later be told by the charger that the battery is bad, retried to with the same result, bad battery, tried with a dumb charger and battery took a full charge, been using that battery for 3 years now at temps below -25c no problems. Keep your dumb charger they are useful but be careful!
the average battery maintainer isnt meant to bring a battery back from the dead, very few of them are unless you want to spend a bunch on a high amp model that can do it. the old high amp "dumb" chargers can cram some voltage back into it to get it back up to where a smart charger can do what it does best, top off and maintain. "smart chargers" are meant to keep the battery healthy and prevent dead batteries from happening to start with by maintaining the charge and keeping the crystals from forming
10:05 ' this is the one that stays hooked up to my batteries at all times' ... yo, even while your driving down the road? Just givin' you a hard time lol, couldn't resist.
You mentioned you keep a volt meter connected to your batteries. Do you have a link to that volt meter? Is this different from a multimeter? It would be great to have an led read out that's constantly on while I'm charging without having to turn on my multimeter and checking the voltage.
My Kisea inverter/charger, with transfer switch, contains a float charge under the lithium battery setting, which I don't understand, because lithium batteries do not need a float charge. Is this float charge therefore detrimental? My inverter is hooked up to my pellet stove, to cover for power outages when they occur. So it is hooked up all the time.
..If I understand it correctly ...batteries RT12120EV with 14ah should never be charged with 8ah charger ... so need to look for 1.4ah charger or lower ... good ( or may I use higher amp like 2-3 ?)
Can I use a trickle charger on a 6 Volt 4-wheeler battery over the winter? Also, I set my deep cycle trolling motor go too long and it will no longer take a charge. Is there anything I can do to revive it? Thank you for your presentation; it was very helpful.
I picked up a cheap battery maintainer at HarborFreight, I think it’s ‘cen-Tex’...for my generator battery. Is this safe to attach and leave, in my garage?
How can I tell if my OEM battery is AGM or just a regular flooded? It's a 2020 scatpack challenger. Nothing on the top of the battery says wet or AGM. No labels anywhere else. I removed the battery and gave it a good shake and lots of sloshing. So I assume it is not a AGM, just a regular flooded.. But someone told me AGM batteries still make a sloshing sound. Is that true?
I have an RV and it is hooked up to a 30 amp I had installed but it did not charge my new Marine Deep Cycle Battery 12V while plugged in and I was wondering why not? My battery was almost dead when I went to hook up.
Great video thanks. I have a totally flat small 12V battery in my portable generator. I also have an older Battery Tender Jr. Did I hear you right that if the small battery is completely dead, the Battery Tender will not start charging? I attached it today and I have a red light on the tender. I thought that it might take a long time but now I’m wondering if it’s doing nothing based on what you said.
If your battery is completely dead then your battery tender may not do anything I have a 1.5 amp battery tender and it will not charge a completely dead battery I have to hook it up to my dumb charger to get it charging then switch it over to the battery tender
Yes, you can connect 2 similar batteries in parallel to charge. This doesn’t double the volts though, they stay at 12v but the amps double so if you had 2 - 12v, 500 amp batteries in parallel the charger would think you had one 12v, 1,000 amp battery.
Can i use normal "intelligent" charger as a battey maintaining charger? If i wanna store my motorcycle battery for winter, do i need some charger that is specifically maintaining charger? Or is just normal 4A intelligent charger enough to charge my battery once a month?
You just want a charger that's also a maintainer or has a "maintenance" or "float" mode if you're going to leave it connected for a long time. Most modern chargers have that, they just all use different language to describe the same function. If the charge explicitly says on the unit itself to disconnect after the battery is charged, then I wouldn't leave it unattended for any length of time. I'd just Google your make and model of charger and see what it advertises in the specs or manual. If you type in your search term and include "manual .pdf" it will usually show up.
Great video! Just want to mention. Oxygen is not explosive in its self. Oxygen only make something that’s burning, burn faster. It’s dangerous if around anything that could catch fire, but the oxygen itself is not explosive.
This is the best YT video that I have seen. I have an RV and a Marine Deep Cycle 12 V. I am upset because I just spent $100 on a Schumacher 15 amp charger. I do have it outside but under my RV (it has ventilation) but I do not want to harm my battery. It is 11/24 so I am hoping that they have improved it. I was wondering can any of them be outside in weather since it is an RV?
If you’re swapping out a battery but you need to maintain power to your car’s computer while removing the old battery, which system is best to provide power?
Hi! nice video ,,,, Can you leave the batterie connected to the car when connecting a float charger for the winter or do you need to disconnect the batterie. Thanks
Excellently explained yound man. Now my uncle was an old skool mechanic and always disconected the battery clamp leads, and charge, is this necessary anymote with these computer contorled so called smart chargers?
I have an AGM battery on my car which I left for months outside this pass winter. I had to jumped start the car but then the battery started getting hot and released a really bad odor. Does that mean that the car is overcharging the battery too?
Don,t throw out your old manual charger. If you have a 12 volt battery that is deeply discharged say below 8 volts most smart chargers will not charge it. You will need the manual charger to bring the volts up to above 8 volts then you can switch it back over to a smart charger and it will then charge it just fine
New smart chargers have a "Push" mode where they will still try to charge deeply discharged batteries. Mine will let you "push" a battery even if it's down to 0.5v.
Does the Deltran Batt Tender have the desultation feature? How do I know when a battery needs to be desultafied? Is there a 5amp Deltran available now? Thx so much for this video. It was very informative. Hoping to hear from you soon!
Awesome thanks so much! Have a question for you I just got a Napa battery charger/maintainer model HFMC15A. It’s a 1.5A charger so pretty gentle. Using it to charge a 12V 22AH battery. It says maintainer on the box does doesn’t mention anything in the manual and seems to be holding a charge around 13.5V and doesn’t drop off. Is there anyway for me to know for sure if it will maintain closer to 12V or is that 13.5V within the realm of reasonable over charge? Think I’ll be okay or should I get a different charger?? Thanks!
I have a schumacher 8amp battery charger. It has a charged/ maintain option ,what does that mean on the battery charger. I will be gone for 4 months would it be safe to leave it hook up to my car battery that long of time?
Hey buddy I have a question I picked up a 1.25 AMP Battery Tender for my 12V 7AH Batteries to charge my Scooter Batteries is that the right charger for scooter batteries will appreciate your reply Back will help thanks
A big crude charger has lots of value for recharging a big depleted battery from zero to 80%, then a smaller smarter charger will top off the battery charging and maintain a safe storage voltage for lead acid batteries. The inconvenience of having to manually adjust charge rates is a saving in the cost of a smart enough charger to do both fast and controlled charging in a single box.
FYI old chargers are good when you have specials projects if you know what you are doing. I got ride of mine but had a project which I needed to use an old charger, baking soda laundry soap and a hunk of metal which I needed to chemically remove the rust.
The ‘dumb’ charger that this guy mentions, can actually charge two dead 12 volt batteries used on a Dodge ram 5.9l, 2500 truck engine for starting with no problems at all. The so- called ‘smart’ shit kept showing dead battery and shutting down. Even though I tried boost charging for a few minutes to give the cells a jolt, it kept showing dead batteries. Looks like the ‘dumb’ charger is good at injecting life back into the batteries and maintaining the charge.🤔👍👍👍
Very good video!! should all batteries be recharged the same? Or little low battery vs a battery thats been sitting for 2 years? any difference in charging the two
First off. Great video. Thank you. Secondly, I am looking for a way to use my truck as a Halloween prop but I don't want to keep the engine on, just the lights on my roof rack and parking lights. The battery is going to die quickly since I have 13 aux lights I want to use. What would work best to not hurt the battery but keep the lights on, engine off for 5 hours?
forget the battery, just use the battery charger. The charger should put out about 13.5 volts continuous, so if anything your lights will glow a little brighter :)
I don't understand how can you overcharge a battery when you're applying the rated voltage. Once it gets to that voltage it will stop, unless you're giving more voltage than what's it rated for it shouldn't overcharge.
Can someone please help us? We recently bought a Class C RV and have two 12 volt batteries wired in series we were told but I think they might be in parallel. They are sealed AGM batteries. We want to trickle charge so they won’t die. We have the SLC10005 Duracell Ultra Amp Charger but the instructions are vague. We don’t want to overcharge the batteries. When the 100% button flashes green we assume the batteries are fully charged and hopefully not charging anymore. Sometimes the button with the yellow exclamation point will flash and we have no idea what this means. And do you know what the stand by button is? Also, should we keep it plugged in all the time? Thanks so much!!!
A few years ago I bought at the farm coop a "genius charger" , 26 amp. My intent was to keep my 2-way radio battery charged on float mode. It failed twice. First by losing output. Dead battery. Next was serious overcharge. Dead battery. They had one in my local batteries plus store which I connected on. They weren't interested.
For a really low or dead flooded battery, the analog charger is the better charger, to maintain a battery at full charge the smart charger is the better one. Btw the only difference between the flooded lead acid battery with and without caps, with no caps they are designed with a vapor trap and the condensation is returned to the battery, and yes you can add dielectric, water to the battery's with no caps. PS you as a common person doesn't have a $2K battery charger, but your local auto parts store just might and that battery charger can reconditioned your battery for ya, not one of the chargers pictured in this video are large enough to do a full cycle regen for your battery. 47 year retired Commercial Industrial Electrician.
They actually threatened legal action against me because I talked about their products on my blog but forgot to use the "®" symbol. I have a feeling our personalities would clash 😂. Regardless, I still like their stuff.
Why is their no cigarette lighter adapters for charging on these models? I have a black&decker trickle charger that hooks up this way…..no need to get near battery.
My battery maintainers will not charge a battery that is way down on charge.The instructions say to charge battery first,then hook up maintainers for long term storage.I run them on all my off season heavy equipment all winter.
Have you ever seen people using a stick welder to boil flooded batteries? They basically open the caps, fill them up, and boil them hard to get rid of the crystals and plating you're talking about. I've seen two videos where they did it to some degree of success.
Looking to avoid filling up my 2018 maxima every 2.5 days because of using my A/C for 12 hour shifts for the upcoming summer. Started looking into portable battery trickle chargers and maintainers, or dual battery isolation kits, or portable Air conditioners with accessory battery packs, etc. Looking to see if anyone here has been in a similar situation and found a solution where they can either run their car's ac off accessory mode and preserve the car's gas mileage or use a recommended portable air conditioner. thanks in advance
Float charge will, on a good charger let the battery get down to 12.6 to 12.4 and then pulse back on for a time. Batteries that are left charging at 13.2 to 13.6 get "lazy" after a while at that constant charge.
Excellent video. Stupid question: I have 24x 2V deep cycle batteries in series. One battery is failing with extra low gravity. Can I attempt to charge it while it's still hooked up, or do I need to remove it first?
Depending on your charger you will get different results. Are you using a 2 bank charger/maintainer? Or just putting a portable charger on the series of batteries? I had 1 bad battery 12v battery wired in series for my 24v trolling motor and it kept draining the good battery. If you know 1 is bad I recommend replacing it because it will eventually kill both. If you are using a single battery charger disconnect the 2 and charge them independently
@@briand1564 I'm supplementing one bad cell in a 24 x 2V string with a portable charger while they're connected to my primary PV array. I get the sense it's compromising my entire bank so I'm thinking of cutting it out, and charging/desulfating independently while I let the bank operate at 46V.
I use the old school charger for a discharge battery most smart charger over rate there current. So I use the old school charger for the bulk charge then use a smart charger to do the rest. If you got a real bad discharge battery the smart charger may not work because The battery us to low for the charger to see to turn on. But 95 percent of the time just use a smart charger plug and play.
I have used the Battery MINDer on my cars for over 25 years. Recently I replaced the battery in my 2002 Corvette after 13 YEARS. The OEM battery in the Vette lasted for over 8 YEARS. For some reason, nobody on TH-cam seems to mention these devices. The big key with the Minder is that it uses a high FREQUENCY (not VOLTAGE) pulse to break up sulfite crystals. Therefore, no overvoltage. I connect the device to the battery if I will not be driving the car for 4 days.
Thank you for the info.
Thank you for putting this out. Best explaination for charging, bulk, absorbtion, and float I've heard. Using the balloon analogy is a great idea.
That balloon analogy is one of the better ones I've heard to comprehend charging
This has been the best battery-charger related video I have seen to date. Thank you!
I always thought the old style chargers lowered charging amps as the battery charged, indicated by the chargers gauge. Plus, I notice that any bubbling becomes less and less to eventually none as the battery gets a decent charge (in my estimation). In any case I never left one connected till the gauge got much below 2, for safety's sake.
I am pretty satisfied with my NAPA 12V 4A/6V 2A trickle charger with a digitat display. I have a 2018 Dodge Ram 2500 6.7L diesel that I seldom drive. Since moving to So. Utah 4 years ago I've only put approx. 200mi. on the truck. With gas prices the way they are I prefer our Prius C which avg. 50mpg. The NAPA charger seems to be working fine for me, maintaining the voltage on both batteries wired in parallel on the truck.
Thanks for the very informative video...enjoy your day!
Very informative! The balloon analogy is spot on and helped me understand it better.
This was the best video I've seen so far on the subject, great explanations and analogies! you should be a teacher! Thanks for the great video :)
That’s the best explanation I’ve heard thus far. Thank you!
Good advice. I have been through many failed battery maintainers used on five vehicles, two outside.. The Delran Battery Tender is the only model that has lasted for years on my five vehicles. I use two of them on Subarus that are daily drivers. Modern cars only have 80 percent charge after a drive. They are not like the older cars. Their alternators don't really charge the battery, they just "maintain"it. So the batteries are chronically low.
Thank you Sir!!!! Very informative & well presented video. I can tell that you are very knowledgeable.
Thank you! Exactly the information i was searching for! I already fried one battery and didn't want to do it again!!
I have one of those old Schmacher too. It's good for if the battery is really bad less than 4V cause the smart my not even recognize connection. Then I switch to the Battery Tender.
A heavy charge current from an unregulated charger must be closely monitored to prevent boiling, venting of dangerous gases and creation of bubbles on the battery plates. But the old-style, unregulated charger is the only way to begin recovery of a dead battery if a smart charger cannot.
Nicely done. Good presentation and like what some reviewers said: one of the best. Indeed.
Great video on the obscure subject I was searching for. Thanks man
Obsolete...not at all...I don't how many times I used a "smart charger" to charge a low battery(not dead) and many hours later be told by the charger that the battery is bad, retried to with the same result, bad battery, tried with a dumb charger and battery took a full charge, been using that battery for 3 years now at temps below -25c no problems. Keep your dumb charger they are useful but be careful!
the average battery maintainer isnt meant to bring a battery back from the dead, very few of them are unless you want to spend a bunch on a high amp model that can do it. the old high amp "dumb" chargers can cram some voltage back into it to get it back up to where a smart charger can do what it does best, top off and maintain. "smart chargers" are meant to keep the battery healthy and prevent dead batteries from happening to start with by maintaining the charge and keeping the crystals from forming
Can you use these with a flat tool battery in any way,
Will the battery Tender charge Oddessy AGW performance
10:05 ' this is the one that stays hooked up to my batteries at all times' ... yo, even while your driving down the road?
Just givin' you a hard time lol, couldn't resist.
You mentioned you keep a volt meter connected to your batteries. Do you have a link to that volt meter? Is this different from a multimeter?
It would be great to have an led read out that's constantly on while I'm charging without having to turn on my multimeter and checking the voltage.
Thank you so much. You are very knowledgeable and very professional
My Kisea inverter/charger, with transfer switch, contains a float charge under the lithium battery setting, which I don't understand, because lithium batteries do not need a float charge. Is this float charge therefore detrimental? My inverter is hooked up to my pellet stove, to cover for power outages when they occur. So it is hooked up all the time.
..If I understand it correctly ...batteries RT12120EV with 14ah should never be charged with 8ah charger ... so need to look for 1.4ah charger or lower ... good ( or may I use higher amp like 2-3 ?)
Can I use a trickle charger on a 6 Volt 4-wheeler battery over the winter? Also, I set my deep cycle trolling motor go too long and it will no longer take a charge. Is there anything I can do to revive it? Thank you for your presentation; it was very helpful.
Are you sure your 4 wheeler battery is 6 volt??
I picked up a cheap battery maintainer at HarborFreight, I think it’s ‘cen-Tex’...for my generator battery. Is this safe to attach and leave, in my garage?
How can I tell if my OEM battery is AGM or just a regular flooded? It's a 2020 scatpack challenger. Nothing on the top of the battery says wet or AGM. No labels anywhere else. I removed the battery and gave it a good shake and lots of sloshing. So I assume it is not a AGM, just a regular flooded.. But someone told me AGM batteries still make a sloshing sound. Is that true?
I have an RV and it is hooked up to a 30 amp I had installed but it did not charge my new Marine Deep Cycle Battery 12V while plugged in and I was wondering why not? My battery was almost dead when I went to hook up.
Great video thanks. I have a totally flat small 12V battery in my portable generator. I also have an older Battery Tender Jr. Did I hear you right that if the small battery is completely dead, the Battery Tender will not start charging? I attached it today and I have a red light on the tender. I thought that it might take a long time but now I’m wondering if it’s doing nothing based on what you said.
If your battery is completely dead then your battery tender may not do anything I have a 1.5 amp battery tender and it will not charge a completely dead battery I have to hook it up to my dumb charger to get it charging then switch it over to the battery tender
What a great video! Thank you so much. I’ll be tuning in! 👍👍👍😎🇨🇱
Great review, would these chargers work on a set of two 12 volt batteries connected in parallel for 24 volts?
Yes, you can connect 2 similar batteries in parallel to charge.
This doesn’t double the volts though, they stay at 12v but the amps double so if you had 2 - 12v, 500 amp batteries in parallel the charger would think you had one 12v, 1,000 amp battery.
Can i use normal "intelligent" charger as a battey maintaining charger? If i wanna store my motorcycle battery for winter, do i need some charger that is specifically maintaining charger? Or is just normal 4A intelligent charger enough to charge my battery once a month?
You just want a charger that's also a maintainer or has a "maintenance" or "float" mode if you're going to leave it connected for a long time. Most modern chargers have that, they just all use different language to describe the same function. If the charge explicitly says on the unit itself to disconnect after the battery is charged, then I wouldn't leave it unattended for any length of time. I'd just Google your make and model of charger and see what it advertises in the specs or manual. If you type in your search term and include "manual .pdf" it will usually show up.
How come you didn't include the Optimate brand?
Nice and thoroughly detailed all aspects.
Great video! Just want to mention. Oxygen is not explosive in its self. Oxygen only make something that’s burning, burn faster. It’s dangerous if around anything that could catch fire, but the oxygen itself is not explosive.
Best explanation video I have found about this subject, thanks! do you have any toughts on the NOCO GENIUS chargers?
Finally a tutorial I can understand!
This is the best YT video that I have seen. I have an RV and a Marine Deep Cycle 12 V. I am upset because I just spent $100 on a Schumacher 15 amp charger. I do have it outside but under my RV (it has ventilation) but I do not want to harm my battery. It is 11/24 so I am hoping that they have improved it. I was wondering can any of them be outside in weather since it is an RV?
If you’re swapping out a battery but you need to maintain power to your car’s computer while removing the old battery, which system is best to provide power?
Hi! nice video ,,,, Can you leave the batterie connected to the car when connecting a float charger for the winter or do you need to disconnect the batterie. Thanks
Yes you can for a float charger but only use the float charge.
Excellently explained yound man. Now my uncle was an old skool mechanic and always disconected the battery clamp leads, and charge, is this necessary anymote with these computer contorled so called smart chargers?
I have an AGM battery on my car which I left for months outside this pass winter. I had to jumped start the car but then the battery started getting hot and released a really bad odor. Does that mean that the car is overcharging the battery too?
You probably connected it wrong.
Don,t throw out your old manual charger. If you have a 12 volt battery that is deeply discharged say below 8 volts most smart chargers will not charge it. You will need the manual charger to bring the volts up to above 8 volts then you can switch it back over to a smart charger and it will then charge it just fine
I overdischarged my 12v 200Ah sealed lead solar battery and it's nolonger holding much current. How can I go about it
But the fuck up that theory even more this doesn't apply to all smart Chargers
New smart chargers have a "Push" mode where they will still try to charge deeply discharged batteries. Mine will let you "push" a battery even if it's down to 0.5v.
Hi, I overdischarged my 12v 200Ah sealed lead acid solar battery, can I use the trickle charger? How do I go about it, please help
Does the Deltran Batt Tender have the desultation feature? How do I know when a battery needs to be desultafied? Is there a 5amp Deltran available now? Thx so much for this video. It was very informative. Hoping to hear from you soon!
I have a smart charger , 2/ 4/6AMP with a feature“ Automatic float charging “ can I use it as a trickle charger.?
This is a great video explaining batteries, I feel like if you're aggressive with the editing you can reduce this video in half and double your views!
Awesome thanks so much! Have a question for you I just got a Napa battery charger/maintainer model HFMC15A. It’s a 1.5A charger so pretty gentle. Using it to charge a 12V 22AH battery. It says maintainer on the box does doesn’t mention anything in the manual and seems to be holding a charge around 13.5V and doesn’t drop off. Is there anyway for me to know for sure if it will maintain closer to 12V or is that 13.5V within the realm of reasonable over charge? Think I’ll be okay or should I get a different charger?? Thanks!
You are safe it won't harm your battery at all in that case.
Why would using a 20 amp charger on a 50 Amp hour battery over charge it? I thought they were microprocessor controlled.
I just bought the 7.5 duracell charger. Can I charge a deep cycle battery at 80 percent discharge overnight for next morning to a 100 percent?
Very clear explanation! Thank you!
I have a schumacher 8amp battery charger. It has a charged/ maintain option ,what does that mean on the battery charger. I will be gone for 4 months would it be safe to leave it hook up to my car battery that long of time?
Very informatics. Good👌👌
Q: How old is that Shumacher?. I have one and mine looks more tech than the one your showing
Hey buddy I have a question I picked up a 1.25 AMP Battery Tender for my 12V 7AH Batteries to charge my Scooter Batteries is that the right charger for scooter batteries will appreciate your reply Back will help thanks
If your scooter runs its motor at 12 votls that would be fine but some scooters are 24 volt so you would need a 24 volt battery charger
A big crude charger has lots of value for recharging a big depleted battery from zero to 80%, then a smaller smarter charger will top off the battery charging and maintain a safe storage voltage for lead acid batteries. The inconvenience of having to manually adjust charge rates is a saving in the cost of a smart enough charger to do both fast and controlled charging in a single box.
How did you contact schumacher? I've had many problems to cnotact them.
Will a float charger charge my Mighty Max 12-volt 9 amp hour battery. I can't find a correct answer anywhere
Can you safely trickle charge agm batteries? I have a second car I don’t use for 6 -7 months that’s left unattended.
Now that LifePO4 prices have dropped i'd change over to the modern world, then you will need to update your videos. PS, I like the balloon analogy .
This Man. Knows what he is Talking About. All his words are 100% True.
FYI old chargers are good when you have specials projects if you know what you are doing. I got ride of mine but had a project which I needed to use an old charger, baking soda laundry soap and a hunk of metal which I needed to chemically remove the rust.
The ‘dumb’ charger that this guy mentions, can actually charge two dead 12 volt batteries used on a Dodge ram 5.9l, 2500 truck engine for starting with no problems at all. The so- called ‘smart’ shit kept showing dead battery and shutting down. Even though I tried boost charging for a few minutes to give the cells a jolt, it kept showing dead batteries. Looks like the ‘dumb’ charger is good at injecting life back into the batteries and maintaining the charge.🤔👍👍👍
is AGM batteries need equalization can you make a video on this
Very good video!! should all batteries be recharged the same? Or little low battery vs a battery thats been sitting for 2 years? any difference in charging the two
Can those portable power bank jump starters, trickle charge the car battery without being connected to the mains power?
Anything that has a higher voltage will charge something that has a lower voltage.
Great video! Very informative. Thanks
I have a manual/automatic, standard/deep cycle battery charger. That way I'm covered for just about any battery charging needs that come up.
Wat brand nd for how much?
First off. Great video. Thank you. Secondly, I am looking for a way to use my truck as a Halloween prop but I don't want to keep the engine on, just the lights on my roof rack and parking lights. The battery is going to die quickly since I have 13 aux lights I want to use. What would work best to not hurt the battery but keep the lights on, engine off for 5 hours?
forget the battery, just use the battery charger. The charger should put out about 13.5 volts continuous, so if anything your lights will glow a little brighter :)
Very good job! I am an idiot and needed your help.
Great video! What do you think about those solar trickle charge batteries?
The dumb charger will work with a completely flat battery. The smart charger won't. So don't get rid of the dumb charger.
I don't understand how can you overcharge a battery when you're applying the rated voltage. Once it gets to that voltage it will stop, unless you're giving more voltage than what's it rated for it shouldn't overcharge.
very usefull and easy to understand information, thank you
Can someone please help us? We recently bought a Class C RV and have two 12 volt batteries wired in series we were told but I think they might be in parallel. They are sealed AGM batteries. We want to trickle charge so they won’t die. We have the SLC10005 Duracell Ultra Amp Charger but the instructions are vague. We don’t want to overcharge the batteries. When the 100% button flashes green we assume the batteries are fully charged and hopefully not charging anymore. Sometimes the button with the yellow exclamation point will flash and we have no idea what this means. And do you know what the stand by button is? Also, should we keep it plugged in all the time? Thanks so much!!!
Thank you sir for sharing your expertise.
i am a bit confused as to why you would be charging lead acid batteries inside your house to begin with. but a decnt explanation of the rest of it.
very informational and helpful. thank you
A few years ago I bought at the farm coop a "genius charger" , 26 amp. My intent was to keep my 2-way radio battery charged on float mode. It failed twice. First by losing output. Dead battery. Next was serious overcharge. Dead battery. They had one in my local batteries plus store which I connected on. They weren't interested.
Thank you for this very informative video, really useful.
For a really low or dead flooded battery, the analog charger is the better charger, to maintain a battery at full charge the smart charger is the better one. Btw the only difference between the flooded lead acid battery with and without caps, with no caps they are designed with a vapor trap and the condensation is returned to the battery, and yes you can add dielectric, water to the battery's with no caps. PS you as a common person doesn't have a $2K battery charger, but your local auto parts store just might and that battery charger can reconditioned your battery for ya, not one of the chargers pictured in this video are large enough to do a full cycle regen for your battery.
47 year retired Commercial Industrial Electrician.
Good info. I went through 2 of the exact same 15 Amp chargers from Walmart and both stopped charging and started reading incorrect voltage.
Very informative. You should work for Deltran 👍
They actually threatened legal action against me because I talked about their products on my blog but forgot to use the "®" symbol. I have a feeling our personalities would clash 😂. Regardless, I still like their stuff.
@@HomeBatteryBank 🤣😂🤣
well explained! 🛠
Why is their no cigarette lighter adapters for charging on these models? I have a black&decker trickle charger that hooks up this way…..no need to get near battery.
My battery maintainers will not charge a battery that is way down on charge.The instructions say to charge battery first,then hook up maintainers for long term storage.I run them on all my off season heavy equipment all winter.
A most excellent presentation!
My only question is, “when are you doing a video on refinishing your wife’s dining room table top”?🤨
Have you ever seen people using a stick welder to boil flooded batteries? They basically open the caps, fill them up, and boil them hard to get rid of the crystals and plating you're talking about. I've seen two videos where they did it to some degree of success.
Thank you. good video
Looking to avoid filling up my 2018 maxima every 2.5 days because of using my A/C for 12 hour shifts for the upcoming summer. Started looking into portable battery trickle chargers and maintainers, or dual battery isolation kits, or portable Air conditioners with accessory battery packs, etc. Looking to see if anyone here has been in a similar situation and found a solution where they can either run their car's ac off accessory mode and preserve the car's gas mileage or use a recommended portable air conditioner. thanks in advance
Excellent
I use an old trickle charger for zinc plating. No need to throw it away.
Float charge will, on a good charger let the battery get down to 12.6 to 12.4 and then pulse back on for a time. Batteries that are left charging at 13.2 to 13.6 get "lazy" after a while at that constant charge.
Excellent video. Stupid question: I have 24x 2V deep cycle batteries in series. One battery is failing with extra low gravity. Can I attempt to charge it while it's still hooked up, or do I need to remove it first?
Depending on your charger you will get different results. Are you using a 2 bank charger/maintainer? Or just putting a portable charger on the series of batteries? I had 1 bad battery 12v battery wired in series for my 24v trolling motor and it kept draining the good battery. If you know 1 is bad I recommend replacing it because it will eventually kill both. If you are using a single battery charger disconnect the 2 and charge them independently
@@briand1564 I'm supplementing one bad cell in a 24 x 2V string with a portable charger while they're connected to my primary PV array. I get the sense it's compromising my entire bank so I'm thinking of cutting it out, and charging/desulfating independently while I let the bank operate at 46V.
how about 3 amp
Thanks. Informative.
Thanks god bless
I use the old school charger for a discharge battery most smart charger over rate there current. So I use the old school charger for the bulk charge then use a smart charger to do the rest.
If you got a real bad discharge battery the smart charger may not work because The battery us to low for the charger to see to turn on.
But 95 percent of the time just use a smart charger plug and play.
Thanks
That old battery charger is very useful for desulfation repair.
Ive had flat batteries that boiled when using a "smart charger"