very etensive test, congratulations! i've been testing the charging of alkaline batteries lately just out of curiosity. Instead of a CC-CV i have been using a pulse charging, done by a diode and a resistor in series with the battery, connected to a 9V AC transformer. I set the current to aroud 35mA for AA cells, and i charge AAA at a third of it (i charge three AAA in a single AA slot with an adapter). When i first made the charger i mistakenly smoothed the AC and many of the batteries tended to leak, but now that i have "dirty DC" leaks are rarer. I tested Energizers, Megacell Duracell, ikea alkalisk AAA and some other brands, taken from different charge states but mostly from 1V (so almost empty). I charge them to 1.5-1.55V and then put them away, usually they tend to drop to 1.3-1.4 when resting (damaged ones drop further). I have yet to test the best ones through discharging but they seem to hold more than 1.3V in storage even after a year. Fun fact: i once left some AAA for a bit too long in the charger and they got to 1.9v...yet somehow they still haven't leaked even after more than a month. I should implement a max voltage cutoff though lol
These very cheap batteries are usually zinc carbon or zinc chloride (the really lightweight ones, often "heavy duty" or "super heavy duty"). I had no success recharging them.
@@bekrstechnologies Ive been able to only partially recharge them by low frequency pulsed charging with tiny reverse currents. they only recharge up to about 1.3 to 1.45 volts at best. They might go from almost dead to powering a device for a few minutes in an emergency. but are not a good option to rely on.
It surely was a big effort and investment. Unfortunately, I could not download your table, as the “server is not responding”. Maybe it is down indeed, or maybe there are geographic restrictions - I’m here in Brazil. If possible, I would appreciate you answer with an updated Link. Thank you very much! I also wish you a blessed Easter.
Regarding recharging AA alkaline batteries, Here's an innovative, ingenious, inexpensive, and practical video that is coherent, well-put together, and clear as day: th-cam.com/video/rv-bApeZr-o/w-d-xo.html
Hello. Love your work. I would like to make the same charger but I'm not exactly sure if I can do it correctly. Can you share a schematic or something? How long would it take approximately to charge a battery?
In a perfect world, this video would have over 10 million views and You'd have at least a million subscribers. Keep up the good work!
Outstandingly thorough research!!! Very impressive.
very etensive test, congratulations!
i've been testing the charging of alkaline batteries lately just out of curiosity. Instead of a CC-CV i have been using a pulse charging, done by a diode and a resistor in series with the battery, connected to a 9V AC transformer. I set the current to aroud 35mA for AA cells, and i charge AAA at a third of it (i charge three AAA in a single AA slot with an adapter). When i first made the charger i mistakenly smoothed the AC and many of the batteries tended to leak, but now that i have "dirty DC" leaks are rarer. I tested Energizers, Megacell Duracell, ikea alkalisk AAA and some other brands, taken from different charge states but mostly from 1V (so almost empty). I charge them to 1.5-1.55V and then put them away, usually they tend to drop to 1.3-1.4 when resting (damaged ones drop further).
I have yet to test the best ones through discharging but they seem to hold more than 1.3V in storage even after a year.
Fun fact: i once left some AAA for a bit too long in the charger and they got to 1.9v...yet somehow they still haven't leaked even after more than a month. I should implement a max voltage cutoff though lol
th-cam.com/video/rv-bApeZr-o/w-d-xo.html
Thanks for this! It solves my problem with a wall clock and an outdoor wireless thermometer .
Great topic! I see that you have SKYRC charger. This charger have a RAM battry mode.
Great information.
So you could not recharge Duracell Ultra with powercheck, AAA?
Hello, how about very cheap batteries? Like the ones it cost 1$ for 4of them? Also leaking only the problem or can it cause fire too? thanks!
These very cheap batteries are usually zinc carbon or zinc chloride (the really lightweight ones, often "heavy duty" or "super heavy duty"). I had no success recharging them.
@@bekrstechnologies ok, thanks! I will give a try maybe I put a metal tray under the charger to be safe :D
Thanks for mentioning carbonzinc and chloride, have you tried reenergizing/recharging primary lithiums?
@@bekrstechnologies Ive been able to only partially recharge them by low frequency pulsed charging with tiny reverse currents.
they only recharge up to about 1.3 to 1.45 volts at best.
They might go from almost dead to powering a device for a few minutes in an emergency. but are not a good option to rely on.
👍super! 👍
It surely was a big effort and investment. Unfortunately, I could not download your table, as the “server is not responding”. Maybe it is down indeed, or maybe there are geographic restrictions - I’m here in Brazil.
If possible, I would appreciate you answer with an updated Link. Thank you very much!
I also wish you a blessed Easter.
drive.google.com/file/d/18iVmz4pCZgkAlEip9nImIljcvcBxyqsZ/view
Regarding recharging AA alkaline batteries, Here's an innovative, ingenious, inexpensive, and practical video that is coherent, well-put together, and clear as day: th-cam.com/video/rv-bApeZr-o/w-d-xo.html
Hello. Love your work. I would like to make the same charger but I'm not exactly sure if I can do it correctly. Can you share a schematic or something? How long would it take approximately to charge a battery?
it's first LM317 in CC mode, and then after it LM317 in CV mode. There is nothing sophisticated about it
Now i can recharge batteries to extract zinc from them
searcrch anestis Hercules in youtube i have upload alkaline chargers are rare
Thank you I can now become rich by investing the leftover 8$ per year