Are AA NiMH Batteries obsolete? Here is everything you need to know about them!
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Date: 2021-11-07
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Comments and reviews: 10
Hamza
My Bluetooth mouse was also working with 2 alkaline batteries. I had to constantly renew the batteries. I finally got bored of it and made the mouse rechargeable.
I used a li-po battery instead of these two batteries connected in series. But since the voltage is 3. 6 V, I didn't want to burn the mouse.
For this, I used the MCP1700T-3002E/TT regulator and fixed the output voltage to 3 volts. For charging, the classic TP4056 integrator.
But the first time I connected a capacitor to the input and output part of the IC, this was a big mistake. Short-circuited after a while.
Finally, I ran the mouse without them and it's been a week, no problems, I charge it from the usb port and use it. My mouse is logitech m555b.
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My Bluetooth mouse was also working with 2 alkaline batteries. I had to constantly renew the batteries. I finally got bored of it and made the mouse rechargeable.
I used a li-po battery instead of these two batteries connected in series. But since the voltage is 3. 6 V, I didn't want to burn the mouse.
For this, I used the MCP1700T-3002E/TT regulator and fixed the output voltage to 3 volts. For charging, the classic TP4056 integrator.
But the first time I connected a capacitor to the input and output part of the IC, this was a big mistake. Short-circuited after a while.
Finally, I ran the mouse without them and it's been a week, no problems, I charge it from the usb port and use it. My mouse is logitech m555b.
reply
Mac
The biggest key for charging if it's a multiple charger running a parallel charging circuit, Throw it away or just use one series circuit of the device that charges your batteries. When you start multiplying different cells without an entire without a intelligent computer you cannot charge them evenly. Just put one battery at a time by multiple chargers And let each cell charge individually you will get most optiment results this way. With nickel metal highlight batteries you do not want to trickle charge them and you do not want to drain them and halfway drain them they hold memory.
reply
The biggest key for charging if it's a multiple charger running a parallel charging circuit, Throw it away or just use one series circuit of the device that charges your batteries. When you start multiplying different cells without an entire without a intelligent computer you cannot charge them evenly. Just put one battery at a time by multiple chargers And let each cell charge individually you will get most optiment results this way. With nickel metal highlight batteries you do not want to trickle charge them and you do not want to drain them and halfway drain them they hold memory.
reply
Anubhab
Compared to a lithium ion based cell, I have noticed that the NiMH battery pack does not offer a good run time. I have a Phillips Aquatouch Wet and Dry cordless shaver that is powered by NiMH cells inside. They charge up very slow and discharge rather fast because my shaver has a pop up trimmer that is a high current load.
The charger of the device would have costed 10 USD approx, and new trimmers available online also cost around the same. I have a hair trimmer now that features easy USB charging. I use the old school foam and razor system for shaving now.
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Compared to a lithium ion based cell, I have noticed that the NiMH battery pack does not offer a good run time. I have a Phillips Aquatouch Wet and Dry cordless shaver that is powered by NiMH cells inside. They charge up very slow and discharge rather fast because my shaver has a pop up trimmer that is a high current load.
The charger of the device would have costed 10 USD approx, and new trimmers available online also cost around the same. I have a hair trimmer now that features easy USB charging. I use the old school foam and razor system for shaving now.
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Swwils
You can get lipo cells in AA size that feature a modern boost converter so they always output 1. 5v with low ripple, the better quality ones also graciously drop voltage when nearing low capacity so they imitate the voltage drop of alkaline AA cells for devices that measure slow battery on the voltage drop.
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You can get lipo cells in AA size that feature a modern boost converter so they always output 1. 5v with low ripple, the better quality ones also graciously drop voltage when nearing low capacity so they imitate the voltage drop of alkaline AA cells for devices that measure slow battery on the voltage drop.
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Ming
I agree NiMH is not obsolete and Lithium may increase dramatically in price over the next few years due to scarcity. I have used them for years in triple holder configururation for LED flashights I get over 1500 cycles and 4 years of life and they still work fairly well with the Duracell brand in the USA.
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I agree NiMH is not obsolete and Lithium may increase dramatically in price over the next few years due to scarcity. I have used them for years in triple holder configururation for LED flashights I get over 1500 cycles and 4 years of life and they still work fairly well with the Duracell brand in the USA.
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Supreme
its funny that back in the days they said lipo was impossible to charge proberly and all that stuff when its actually nimh wich is the problem. i always called out people that trew a fit when manually charging lithium and asked them what the problem was. they never could explain it. they just knew.
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its funny that back in the days they said lipo was impossible to charge proberly and all that stuff when its actually nimh wich is the problem. i always called out people that trew a fit when manually charging lithium and asked them what the problem was. they never could explain it. they just knew.
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exogator
I have energizer cells similar to yours and when their considered flat to a device (usually drops below the safe voltage 0. 7v) I charge them using a smart multi chemistry battery charger and they only ever seem to take 300-350mah before being 100% charged.
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I have energizer cells similar to yours and when their considered flat to a device (usually drops below the safe voltage 0. 7v) I charge them using a smart multi chemistry battery charger and they only ever seem to take 300-350mah before being 100% charged.
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manicminer
Great tips on charging. I really need to get a smarter charger, my current one only does trickle charge although it does let you set the time/current values. It might not be the greatest battery tech but it s used almost exclusively by toys!
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Great tips on charging. I really need to get a smarter charger, my current one only does trickle charge although it does let you set the time/current values. It might not be the greatest battery tech but it s used almost exclusively by toys!
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Noah
I m working on a portable neopixel light project that is powered off 3 AAs. I was just doing research on types of possible rechargeable batteries and couldn t understand much information on NiMH AA batteries. This is absolutely perfect. Thanks!
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I m working on a portable neopixel light project that is powered off 3 AAs. I was just doing research on types of possible rechargeable batteries and couldn t understand much information on NiMH AA batteries. This is absolutely perfect. Thanks!
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Casper
I was Just talking about this yesterday with a Friend. I needed a 6V battery that would go up to 7. 4V
I decided on LIFEPO4 batterys since they have models with 3. 2V and 7. 2V when charged.
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I was Just talking about this yesterday with a Friend. I needed a 6V battery that would go up to 7. 4V
I decided on LIFEPO4 batterys since they have models with 3. 2V and 7. 2V when charged.
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