I recharged my non rechargeable Alkaline AA Batteries like 100 times by now. I got a cheap USB powered charger from ebay and i recharge them for 30 min on/ 30 min off / 30 min on / 30 min off for 4 hours

photovoltaic / solar thermal technician here. from thumbnail picture i thought you were trolling but you weren't. very nice 👍

I recall having a charger, perhaps 20+ years ago that could 'refresh-charge' alkaline batteries and it would really work. As the host says, it would not be to the capacity of a new battery but it would be enough for use over an appreciable period. I've just had a look and I still have it. It is the Goodmans Intelligent battery charger GBC1100. It has a switch dedicated to alkaline batteries. It really saved me a lot on battery costs.

I bought a ton of used 18650 for really cheap from a computer repair shop that regularly throws away faulty laptop batteries. I modified every clock or device to take it. Now that's how I solved the problem. The kitchen timer that I use everyday is still working after one and a half year from a single 18650. 😂

even before watching the video, I felt aha I must watch this guy, he seems expert and know about battery :)

Radio Shack used to sell a recharger for Alkaline batteries including 9V ones. Could do 2 batteries or one 9V. D cell batteries took nearly 18-20 hours to charge. Too bad they are out of business and no longer have those available.

There used to be a product called battizer, it claimed to charge alkaline batteries using small pulse charging, not continuous trickle charge.

Ya I put 17 volts into some Duracells and they barely got warm but it only took to the count of ten and they were reading four and a half volts. I even charged some wafer batteries and they are still holding 7 volts but they are supposed to be three volts so I thought maybe I shouldn't put so much voltage into them so I set up some more resistors on the transformer I was using and got it down to 9 volts and now I can let them charge slower and longer. None of them really got hot but I wasn't charging them very long either but I'm sure they will explode if left long enough. The fast charge is kind of cool though and the couple extra volts really makes for an extra bright LED flashlight so I thought I might try cooling things down a bit and I put some batteries (dead batteries) in the freezer thinking I can keep from damaging them that way and I froze them up good. What a surprise that was because I read four volts off of the dead AAs that I froze and I hadn't even charged them yet, that goes for wafer batteries too. I could have swore they where dead when I put them in the freezer? Needless to say none of the batteries I froze ever got warm the whole time I was charging them and I was hitting them with nine volts, I know there are some more resistors around here somewhere and I imagine I will get the performance up to what it should be and I have a whole bucket of batteries to work with. Also it is interesting to note that I only found one leaking duracell out of that whole bucket .... Update: I found another AA battery that reads Zero, I put it in the freezer and it came out reading 3 volts .. I'm charging it at fifteen minute intervals in and out of the freezer .. Update: I as reading 15 volts off this power supply and now I have three power supply's to work with so I set one f them up with a potentiometer so I can just the voltage level so I can trickle charge at around 1.5 volts and the Dura Cells are doing very well this way, I also set up a trim pot so I can adjust t very minute increments and charged a 18650 3.7V Lipo nd it was easy to set the voltage just a volt over what the battery was reading and watch the VU meter while it charged so I have two seperate readings for what is going in to the battery and what the battery is reading ....

I recharge my AA and AAA Eneloop batteries with a charger I purchased from Amazon.. I'd like to recharge A23 12v alkaline batteries that we use for remote controls/ceiling fan, but they don't fit in the recharger because the batteries are approximately 1/2 the length of a A/AA battery. Do you have any suggestions? The A23 batteries cost about $5ea and we use 2 per year per room.

6:46 😂 maan current on the series connection is always the same

I think it's awesome

Thanks a lot for this video! Keep up the good work :)

Very clever! Thanks.

How many days if used this in multi tester same as you?

How do they charge new batteries at the factory? I just bought 8 D cell batteries and put them in a 9 inch plastic fan, and the fan would not turn on. I put the old ones in and it ran. I put 6 other new batteries in and it worked fine. I put the first set of new ones back in and - again nothing. I think that sometimes they ship dead batteries. I'm going to test them in the store before I buy them from now on.

This guy has more tools than builders warehouse

Nice 👍

Thanks for a valuable video. A few questions: 1. at 3:15 you label the type of charger you use as "alkaline rechargeable device". It would be useful to distinguish these from other kinds of chargers. One of my chargers immediately rejects my alkaline non-rechargeable batteries, while another (less high tech) charger accepts them. 2. I am assuming you use a 4 hour timer to avoid the possibility that unlimited charging time might cause battery damage. Is that right? If so how did you settle on 4 hours? 3. Have you tried recharging batteries that are very drained vs. those that are less drained. For example I have quite a few AA alkaline that are giving 1.0 V now. Would you expect they could be recharged just a well as more depleted batteries (eg 0.5 V)?

Thank You

I use the C1303 charger to recharge my alkalines. It has an alkaline charging mode.

I charged mine on a opus 3100t

why don't you use a good regulated DC power supply. I have one , that displays V, A, W. Current and Voltage have Coarse and fine adjustment. I used it to charge my Lithium Ion Motorcycle battery. you have to watch the current draw, dont leave unattended.

Can you write your items that we need for doing this process. I would like to order this on amazon. Thank you

Is this possible to recharge duracell® 6v lantern alkaline battery? If yes, how to do this.

i charged those by mistake (because my duracell look the same as rechargeable duracell batteries) i left it on charge all night and noticed a leak this morning, only then i though, i may charged the wrong Batteries, i did ! I checked and they are full!!!

300mA is very high, try to reduce to 15mA

Very helpful. Thanks Sip

In the 80s I used to put them in the the oven on very low heat

Ich lade meine Batterien mit einem Bedinie-Motor oder mehrere gleiche Akkus mit remf-Lader auf. Falls mal eine ausläuft hilft Schmirgelpapier und weider geht es. Habe seit 1 Jahr 12 Stück im Dauereinsatz. Bis heute keine zusätzlichen Akku gekauft!

Can you suggest a recharger. I have a NOCO 5 battery recharger for 6v and 12v. Can you also suggest exactly what type of adaptor. I have collected many adaptors. Input 120/220v Output 5v to 18v. I do not see the pure energy recharger on Amazon.

So can you use a regular NiMH battery charger?

How long to charge alkaline 1150 mah 1.5v aaa batteries on 120ma or 250ma charger

After you called the double A’s. AA I was waiting for you to call triple A’s. AAA’s

I use 5 volts at 1 amp and take them of after 25 minutes.

Where did you buy the device for $4?

Can you use a charger with 2.8v and 180mA?

So in other words a cheap usb battery charger with a 5v phone plug will work

But, thanks!

What if you don't have a USB recharger, but a regular 110 volts multiple batteries recharger?

Is the charger okay for solar power?

Do you live in your parents basement? Don't burn the house down, especially if it is not yours. Good vid tho, but all my chargers will not allow any alkaline batteries to charge.

Who dont rechargeable batteries charge then after lying around for months?

Dude, who even carries a pocket calculator any more?!

9 minutes in before he tells how to charge them.

I think it's much more economical to just buy rechargable batteries & charge those!!!

Too slow to get to the point. How to recharge or re energize regular alkaline batteries safely and effectively

To much money

This video is A TOTAL MESS! The explanations are so incomplete & require the person to go scrounge for 10-20 year old battery chargers for long-discontinued battery types from long bankrupt companies!🤦 What's required is a much more thorough discussion & explanation, preferably by someone who knows the difference between amps & volts (10:20-10:35🙄). At 6:10-6:30 in the video, the most amazingly confusing instructions are given for the UNNECESSARY recommendation for matching the same BRAND of batteries together (matched when put into the same "container", quickly corrected to "charger"...but where's any semblance of editing to this rambling mess?). The TYPE, yes. Making sure that you're actually recharging Alkalines, & not mixing them with some carbon zinc? lithium? Actual rechargeables? Mercury cells??? But the newer (XL) Pure Energy chargers can charge one battery at a time; it's the older Envirocharger, Charge Pal, & perhaps those white ones you have that you have to use pairs. But that's only to complete the circuit, not because they're going to charge unequally, or something is going to be damaged because of THAT!🤨 So besides the abysmal editing, the questionable knowledge of the subject at hand, & the rather poor and/or poorly explained information, here's my list of questions that you need to answer in order for this video to be of any interest to anyone other than a junk collector living in Canada who happens to still have any access to decades-old obsolete battery chargers of a uniquely specific type... 1) You don't mention whether there's any issues with trying to charge RECENTLY DISCHARGED batteries, versus batteries that have been "dead" (discharged well below the point of being useable; say, about 1.0V or so) & sitting around for more than 6 months. Or how about 1 year? Or more? 2) So does the AGE of the battery, the amount of TIME it's been discharged to the point of being too weak, matter? I have read from other sources that batteries, though not specifically Alkaline types mind you, more than about a year old have undergone too much chemical degradation due to the passage of time to respond usefully to recharging of ANY kind. 3) Does the DEGREE of discharge matter? Is there a "threshold voltage", say 0.5V, or 0.4V, or...? What about 0V??? Before the battery can be said to be too discharged, too "damaged" to be able to respond usefully anymore? 4) You mention in one viewer comment that you responded to, that disposable (& presumably rechargeable ones too, hence the need for the exact same chargers!) Alkalines need to be "trickle charged". And that Chargers designed for NiCd or NiMH batteries (or presumably, "Universal" Battery Chargers like my Ray-O-Vac purchased at Wal-Mart 10 years ago, that has circuitry to "identify" the formulation in the battery & select the charging program appropriate for it) don't use low enough charging current to charge disposable Alkaline batteries without overheating them & ruining them permanently. So if I don't have, & cannot find, one of these Pure Energy "🦖dinosaur 🦕" chargers, how about mentioning the ELECTRONIC SPECIFICATIONS REQUIRED IN ORDER TO CONSTRUCT A SUBSTITUTE? I think the OVERWHELMING number of viewers are going to have this problem, so by not mentioning the EXACT details of the "correct" charging regimen, this video is absolutely useless to them except for the vague knowledge that recharging disposable Alkaline batteries is theoretically possible, SOMEHOW. 5) To that end, you mention a charging time of 4 hours. Fine. What's the recommended trickle charge current then? And how does it get varied, or does it at all, over the 4 hour period? Does the battery itself govern the charge current as the process approaches completion, is it actively current-limited by the Charger? Or does the circuit otherwise taper, or pulse, changing currents over the 4 hours? And how about the voltage? Is there an absolute maximum, PER CELL? Does it change over the 4 hours? Or is the voltage supposed to be regulated to a fixed, constant amount? 6) Because the recommended equipment required to duplicate the results shown in your video are obscure to the point of complete unobtanium, this HAD to become a much more technical video than simply showing how to connect up a battery charger to a 4 hour timer. You NEED to explain something about WHAT & WHY, & HOW, this process works. Armed with enough information on the actual SCIENCE involved behind how the batteries, AND their rechargers, actually work; then ANY viewer with even a modest knowledge of electronics can figure out how to duplicate it with other, more available & preferably off-the-shelf components. A mostly impractical, unscientific, & seemingly uninformed as it was uninformative video. Truly a wasted opportunity on what could & should have been a highly interesting subject...😑

I’m sorry brotha, but you talk to much get to the point