Small travel charger for AA/AAA?

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DPRoberts
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Small travel charger for AA/AAA?

I just bought some Eneloops (actually Duraloops on clearance from Target), and I don’t trust my old Energizer charger with them. I’m looking at the Nitecore i2 (it’s on sale) as an everyday charger, but I’m also looking for a very small travel charger. I don’t care if it’s not the best charger in the world, as long as it’s as small as possible (not USB, though) and won’t ruin my batteries.

HKJ
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Why not usb?

I have been using this as a light weight travel set for some time:

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

DPRoberts
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It’s not a bad idea, but personally I don’t travel with a laptop or anything that has a USB, so I need something that can plug into AC.

HKJ
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DPRoberts wrote:
It's not a bad idea, but personally I don't travel with a laptop or anything that has a USB, so I need something that can plug into AC.

As you can see on my photo I have a small USB power supply with me, not a laptop. This way I can charge phone, AA/AAA batteries and 18650 batteries.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

fyesilova
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This is what I carry as AA charger, it can also supply power to USB devices from AA.

This needs an AC adaptor with mini-USB output for charging.

It is sanyo KBC-1ES.

I have also ML-102 as like HKJ’s for 18650.

This is the charger I use at office, 2-battery direct AC charger.

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Chloe
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Most of the really small AA/AAA chargers are powered by 5V DC anyway so I’d recommend looking at some compact USB power supplies like HKJ uses.

I have a Soshine SC-F3 which is very light and small. There is also XTAR XP1.

Tumbleweed48
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My favorite is a Maha MH-C204W. I’m away from home right now, and looking right at it. Wink
Excellent charger, I’ve used this one extensively for a couple of years. My wife has one as well – comes with a pouch big enough to hold a spare 4-pack etc.

I think they also come labelled as “PowerEx” . Ours have both markings.

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If you buy the nitecore, and you travel by car, you can always use the 12vdc input to connect it to the car lighter

Mooooooo

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has never let me down .3 years its been on 24/7 !!!

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Tumbleweed48 wrote:
My favorite is a Maha MH-C204W. I'm away from home right now, and looking right at it. Wink Excellent charger, I've used this one extensively for a couple of years. My wife has one as well - comes with a pouch big enough to hold a spare 4-pack etc. I think they also come labelled as "PowerEx" . Ours have both markings.

 

I have the C9000 and love it (of course it isn't a small travel charger).

But looking at this one, it appears it does not do individual cells, only 2 or 4 at a time.  That would be inconvenient for devices that use 1AA as you would have to carry an extra spare cell just so you had two discharged batteries ready when it came time to recharge. 

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DPRoberts wrote:
It's not a bad idea, but personally I don't travel with a laptop or anything that has a USB, so I need something that can plug into AC.

That puts you in a minority these days.  Laughing

Many of the small devices people "travel" with these days are moving to USB as the preferred recharge option.  (Phones, tablets, music players, etc.)  I think once you specify "travel" in your requirements, USB will immediately become the dominant option.

As HKJ pointed out, a small AC to USB adaptor can easily become part of your travel kit.  It probably also allows the charger to be more compact since no mains converter is required inside.

Add to that the fact that many cars now have USB as standard (and if not there are cheap lighter adaptors).  Planes often have USB outlets as well.  Even some solar panel "travel" units output to USB. 

Don't rule out USB simply because you don't travel with a laptop.

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Shaquille wrote:

has never let me down .3 years its been on 24/7 !!!


i e-mailed lacrosse and for maximum life they suggest unplugging it when its not in use (to my annoyance)

it is an excellent charger, i take it with me on travel as well

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

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Bort wrote:
Shaquille wrote:

has never let me down .3 years its been on 24/7 !!!

i e-mailed lacrosse and for maximum life they suggest unplugging it when its not in use (to my annoyance) it is an excellent charger, i take it with me on travel as well

My theory has been  plugging and unplugging means  the circuitry temperature went cold and hot so all that expanding and contracting would decrease its life Sad

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Shaquille wrote:

Bort wrote:
Shaquille wrote:

has never let me down .3 years its been on 24/7 !!!

i e-mailed lacrosse and for maximum life they suggest unplugging it when its not in use (to my annoyance) it is an excellent charger, i take it with me on travel as well

My theory has been  plugging and unplugging means  the circuitry temperature went cold and hot so all that expanding and contracting would decrease its life Sad


i was just hoping i could avoid moving upholstered furniture to unplug and plug it in every couple of days

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

Shaquille
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Read about this light bulb thats been ON for a 100 years in some US fire station !!  call me crazy but that has made me Leave my electronics  plugged in lol

Bort
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Shaquille wrote:

Read about this light bulb thats been ON for a 100 years in some US fire station !!  call me crazy but that has made me Leave my electronics  plugged in lol


do you know why its still burning?
not because it was seldom turned off, but because its being run at very low power, an incandescent will last much longer if run at lower current, but its a tradeoff, it less efficient but longer lasting, if i’m remembering correctly halving the power will quadruple the life, so your 1000 hour bulb would last 4000 hours, but you will get far less then half the light.

CFLs are different, they have electronic starters that have a finite number of cycles, i had posted a thread a while back about 6000 hour rated ones that were barely ever turned off and still going at 11000 hours because the electronic starter was nowhere near burned out.

Your LED flashlight that uses PWM goes on/off many times a second, the 105C runs at 4.5mHz or 4.5 million times a second, your CFL would be dead pretty quickly if you tried that, yet the LED should last tens of thousands of hours

So in conclusion you can’t use a lightbulb as an allegory for all electronics

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

Tumbleweed48
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Well, I’ll be darned! In all the time I’ve had this Maha I’ve never tried to charge a single cell, so I just tried and it won’t.

In my single cell flashlights I’ve always used lithium primaries just for the convenience and light weight. My main application is either for 4 cells in a camera, or 4 in my shortwave radio or handheld GPS.

gadabout
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Tumbleweed48 wrote:
Well, I'll be darned! In all the time I've had this Maha I've never tried to charge a single cell, so I just tried and it won't. In my single cell flashlights I've always used lithium primaries just for the convenience and light weight. My main application is either for 4 cells in a camera, or 4 in my shortwave radio or handheld GPS.

Ha ha.

I guess every day is worth getting out of bed if you learn something new.

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Bort wrote:
Shaquille wrote:

Read about this light bulb thats been ON for a 100 years in some US fire station !!  call me crazy but that has made me Leave my electronics  plugged in lol

do you know why its still burning? not because it was seldom turned off, but because its being run at very low power, an incandescent will last much longer if run at lower current, but its a tradeoff, it less efficient but longer lasting, if i'm remembering correctly halving the power will quadruple the life, so your 1000 hour bulb would last 4000 hours, but you will get far less then half the light. CFLs are different, they have electronic starters that have a finite number of cycles, i had posted a thread a while back about 6000 hour rated ones that were barely ever turned off and still going at 11000 hours because the electronic starter was nowhere near burned out. Your LED flashlight that uses PWM goes on/off many times a second, the 105C runs at 4.5mHz or 4.5 million times a second, your CFL would be dead pretty quickly if you tried that, yet the LED should last tens of thousands of hours So in conclusion you can't use a lightbulb as an allegory for all electronics

crap Sad  I hate unplugging stuff Yell

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no its still burning ! 110 years later .The bulb's long life has been attributed to its low power, near continuous operation, and dedicated power supply according to Wikipedia

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Bort wrote:

Your LED flashlight that uses PWM goes on/off many times a second, the 105C runs at 4.5mHz or 4.5 million times a second

Really? Sounds high.

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didge wrote:
Bort wrote:

Your LED flashlight that uses PWM goes on/off many times a second, the 105C runs at 4.5mHz or 4.5 million times a second

Really? Sounds high.


actually, its on low (pun intended)

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

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Bort wrote:
CFLs are different, they have electronic starters that have a finite number of cycles, i had posted a thread a while back about 6000 hour rated ones that were barely ever turned off and still going at 11000 hours because the electronic starter was nowhere near burned out.

I tend to leave CFLs on rather than turn them on/off for short periods because of this, but I wonder the cost of replacing vs. wasted electricity (they can be costly, for example the Philips bulb I use in the bedside lamp is at least 7 years old).

Bort
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Chloe wrote:
Bort wrote:
CFLs are different, they have electronic starters that have a finite number of cycles, i had posted a thread a while back about 6000 hour rated ones that were barely ever turned off and still going at 11000 hours because the electronic starter was nowhere near burned out.

I tend to leave CFLs on rather than turn them on/off for short periods because of this, but I wonder the cost of replacing vs. wasted electricity (they can be costly, for example the Philips bulb I use in the bedside lamp is at least 7 years old).


i also do the same, i was never able to accurately calculate the life loss per on/off cycle, i consider 3 hours of life loss as my best current educated guess

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

agent80
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HKJ, what is the name of that AA charger? Where can I buy the same one.

HKJ wrote:

Why not usb?

I have been using this as a light weight travel set for some time:

HKJ
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agent80 wrote:
HKJ, what is the name of that AA charger? Where can I buy the same one.

It is a Sanyo NC-MDU01, I got it together with some eneloop batteries.

I have never tested it, just used it as a travel charger.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

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My i4 charger charges the aaa eneloops not so good like my b6 does…
If charged and discharged with b6 I get around 720mAh with my i4 I get 100mAh less…
So I am searching for a nice charger which is suitable for AAA.

hank
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http://www.mahaenergy.com/mh-c401fs/

Had one for years, been reliable. extensive review and comments at http://www.dpreview.com/forums/post/10180611