Batteries for wireless mouse

Amazon.com: Sanyo Eneloop Ni-MH Charger and 8 Rechargeable AA and 4 Rechargeable AAA Batteries: Electronics

Hey all,

My batteries died recently in my wireless mouse and I figure I should just get some rechargeable ones and stick to those for a few years. I was looking up some products and came across these eneloops. They seem to be really popular among people, but there are complaints that sometimes the batteries don't fit the device because these batteries are slightly different than standard size.

So my question is, will these rechargeable batteries fit and work fine in this mouse? Amazon.com: Logitech M305 Wireless Optical Mouse Silver/Black: Electronics
Also, if anyone has any thoughts on these batteries, they will be greatly appreciated.

Thanks

 

Eneloops are awesome batteries.

However keep in mind what they specialize in is losing charge very slow over a long period of time when not in use. They drain just as fast as any other when they are used.

So that means if your using the mouse daily or every few days your not really using them to their full potential.

They are best for devices like say a flashlight that will be sitting on a shelf for a long period of time without use until the need arrives. A normal rechargeable battery would lose most of its charge while these still have like 80% after a full year of sitting.

Id probably still get them even for a mouse, but I think any decent rechargeable could serve you just as well, perhaps a higher capacity one even better.


For size. They seem standard to me I have 8 of them in my ultra high power torch (flashlight) but it uses spring loading so if they were a bit larger or smaller than normal I think the spring would compensate.

 

I just tried the eneloop battery out of my g700 in my M305 and in fit perfectly. I'm not sure if this eneloop is a first generation or the newer model you linked to but I don't think that they would have gotten much larger if at all. I normally use an Energizer rechargeable battery in my M305 and it has a slightly tight fit but still works perfectly.

 

Thanks so much!

Also, I thought that much about the usage rates, but since this laptop is in classrooms/lecture halls most of the time, its not really appropriate (or enough enough space) to whip out a mouse and use it. So at most, 10-15 hours a week.

 

there garbage in my eyes get powergenix batteries. They are 1.6v and have about 30ish% more energy than NMHi. Go to amazon.com and search powergenix battery plus they are echo friendly. Plus if you use google shopping and look around you might find them real cheap. they are about the same price or less.

POWERGENIX F1-0027 3-to-5 Hour Fast AA/AAA NIZN Battery Charger Kit

Also the nmhi batteries that have a good shelflife actually have a lower capcity if i remember.

 

It depends entirely on the device. If the device is built to take the Eneloop batteries (like my G700, ~1.2V), they may have problems operating with the 1.6V of the POWERGENIX, and it could even damage the device. If the mouse is designed to work with normal alkaline AA's (~1.5V), then the POWERGENIX may actually provide better performance than the lower voltage Eneloops.

 

In all honesty there is really not much of a downside of using Eneloops; any higher capacity non low self discharge cells aren't going to give you significantly higher runtime, but the self discharge on the other hand may become a factor if the mouse draws a particularly small amount of current and has a large amount of power saving features. My G700 appears to draw power at quite a high rate for a mouse, but your wireless mouse may not.
That mouse may not be able to handle NiZN batteries, since it probably draws a small amount of current which will cause the voltage under load to be approximately 1.6 volts, which MAY be too much for the circuitry to handle.

 

I was about to tell you the same exact thing rechargables output 1.25V you won't get 1.5V out of them and they have a weird discharge curve. You're better off using batteries. They have a steady output needed for your mouse to respond correctly.

 

powergenix puts out 1.6v but it does have the gradual loss of power like the nimh batteries but the added voltage negates alot of that. But true if its not ment to take 1.5-1.6v than don't use them but for ur xbox controller camera and most devices the powergenix nizc batteries are far better. Also like i siad they are recylable too. No hazardous chemicals. Also they can be even cheaper to buy than nimh batteries

 

But you know why they output 1.6V when fully charged and not 1.5V.

 

they use difference materials. Batteries have different voltage due to the material used. nmhi is the material used and its 1.2. alkaline are 1.5 due to the material. NiZc use that material and it outputs a 1.6v (more like a 1.5-1.6v) Also li batteries vary depending on the tech used. Some are 3.2v, 3.7v and i think 1 or 2 other voltages. All depends on the material. Basicly its the material that makes the battery traits. voltage, current, discharge rate, shelf life, how many cyles, toxic or not, and so on

 

Ok

So after reading some comments about 1.2 vs 1.6 I got curious about the specs of the m305 and looked it up.

Changing the battery in my M305
It says not to use rechargeable batteries in it.
Is this is one of those instances that the manufacturer just says things and it doesn't matter or is it relevant?

 

Yes and no. I assume they say that so you don't run into issues with it not getting a high enough voltage. It's ment to use 1.5v and since its a high drain 1.2v nimh batteries can cause a lack of performance i bet. So using the nizc batteries would be a much better choice. Remember though they suffer from the gradual loss of power like nimh batteries. They don't keep that 1.6 volts like an alkaline battery can. But you should be just fine using the nizc batteries. It'll save you alot of money down the road and help keep posious batteries out of landfills and from being recyled. Remember always recyle your batteries.

See chart below EDIT!!!:top one is alkaline not nmhi my bad ^^

My half butt drawing ^^
alkaline keep a good voltage lvl until they are nearly out of juice.
nizc/nmhi slowly loose voltage over time and than drop off. So this is not idea in high drain devices but its better than buying tons of desposible batteries.


Forgive me for spelling i suck at it ^^ No spell check on IE and can't install firefox/opera :/

 

Thanks for that. I'm honestly just thinking of getting the Perfomance MX one since it is rechargeable and can operate while on wired mode.

 

does it use li-ion battery? if so can it be replaced? Also what is the rated run time...is it good?

EDIT: Side note, the powergenix batteries are still way better rechargables than nmhi. So if you do use AA batteries it would be good to buy one or two 4 packs of the powergenix.

 

Well I've been using my M305 with a 1.2v rechargeable battery for ~7 months now with no problems. It may require recharging the battery sooner than you would have to replace a nonrechargable battery though.

 

I don't know what type of battery it uses, but you get a USB charger plus a dedicated wall charger so theoretically, with the USB charger, you will never need batteries on that mouse again.

Amazon.com: Logitech Wireless Performance Mouse MX for PC and Mac: Electronics

Thanks for that information. That 1.2 v 1.5 was irking me quite a bit. After doing some research, its weird that companies just didn't make rechargeable batteries 1.5v and just charge extra. Although, this would cut into regular battery markets, I guess.

 

Looks like it uses a single rechargeable NiMH AA battery, probably an eneloop like the g700. Link

 

you can't just make them 1.5v The reason why they are 1.2 for nimh is because of physics and how the material in the battery works. Also the nizc batteries are fairly new. They just reach production not that long ago. The tech for batteries will always be around for decades before they actually start to use it. It's a very slow process of development.

 

KSD you are wrong about a few things. First, alklaine batteries actually have quite poor discharge curves because of a very high internal resistance. This is why they can't provide more than a few hundred milliamps without a serious decrease in voltage. True, the EMF from the chemical interaction within the cell will produce a voltage that is higher than that of a NiMH cell when no load is drawn, but any significant load will drastically reduce this value because of the high internal resistance.
Virtually all NiMH cells can provide much higher currents than alkaline cells because they have a much lower internal resistance. Eneloops are able to deliver a few amps of current, while alkalines can't even begin to approach that level without severe voltage sag. Milliamp hours is not a true measure of capacity, since the voltage changes throughout the discharge cycle; what accurately expresses it is watt hours. If a cell has a lot of voltage sag it will not be able to deliver as much total energy to the device that is being powered as if it had a lower interal resistance.
With NiMH cells, generally higher Mah cells of the same size have higher internal resistance. They can provide current for a longer duration, but most of the time the average voltage level will be lower than high discharge cells rated at fewer MaH.
What you said about high drain devices is backwards; NiMH cells are much better than alkalines for that usage. In fact, alkalines don't have any real advantages except for their low initial cost when compared with the alternatives, which are primarily eneloop cells and 1.2 volt lithium primary cells (which are available in AA size).
Most lithium primary cells (such as CR123A cells and CR2 cells) are rated at 3 volts, while rechargeable lithium cobalt (the most common variety of lithium ion cells) cells are rated at 3.7 volts, but will read 4.2 volts under a minimal load (such as that from a volt meter in series with the cell). There are also Lithium phosphate cells which are rated at 3.2 volts. Alkaline cells actually do not read 1.5 volts when fresh; they read more like 1.6v; likewise Nimh cells usually read over 1.4V, not 1.2V. That is simply some sort of average of the voltage they can provide at a given current.
So, it is likely that, although the nominal voltage of a NiMH cell will be lower than an alkaline cell, it will be able to provide the necessary voltage required for the mouse to function for a longer duration than an Alkaline cell; this will be more true the higher the amount of current being drawn is.
In other words, even at low currents an alkaline cell will drop below 1.2 volts before an Eneloop cell does. I haven't really been following NiZN cells, but they definitely aren't any large amount better than eneloops (if they are at all).

 

well i am mistaken on the high current discharge...thats for sure. Never knew that but over all alkaline batteries have a better discharge current on low power drains devices. (most mice are low power drain unless you use like the rat 9 lol)
Note when i say better discharge curve for low drain devices i am counting the advantages of shelf life and high voltage.

Since i was wrong on the high drain part its important to note that the nizc batteries are better in every way than.

Discharge tests of AA batteries
NiHM Batteries FAQ covers AA NiHM, AAA HiHM

EDIT: i disagree completely with ur last statement

 

You may be right that they are slightly better than Eneloops in terms of discharge and overall energy output, but apparently NiZN cells still have a fair amount more self discharge than LSD NiMH cells like the Eneloops. I don't really follow NiMH and other <2V battery chemistries very much since most of the devices I have either have proprietary lithium ion cells, or are flashlights in which I use 14500, 18650, and 26650 sized lithium ion cells, since they can do a lot more than NiMH cells with their much higher voltage. Additionally, eneloops are for the most part a lot less likely to damage a device that has pretty specific input voltage requirements. One graph I saw had the NiZN cells at about 1.65 volts under a .7A load, which is a lot more than any mouse will draw. If a mouse was meant to use an alkaline, that voltage may very well be too high depending on what sort of voltage regulation circuitry is used.

 

i use my crappy little rosewell mouse/keyboard with the nizn cells and they work great. the mouse should last a few months with i think four hours a day use. I am not sure but using energizer nihm it lasts like 2-4 weeks. with these powergenix i get well into a month. note i use this about 8-10 hours a day. Also checked the mouse* and i see no rated power consumption but these nizn are far better in everything i have used. Also my shaver runs like its on speed and works so much better with the higher voltage.

 

It may run faster, but this means that the motor (or whatever your particular shaver uses) is running faster than spec, which means it will not last as long as it is supposed to. This seems to indicate that the motor may be in direct drive and that there isn't actually circuitry, or that the output voltage is dependent on the input voltage (like some PWM circuits).
My logitech G700 mouse came with an eneloop so I use that, and it honestly won't last more than a day of heavy use because it doesn't have a slew of power saving (and performance killing) features constantly enabled.

 

which means if it dies in a day than the nizn is better. Also my shaver is supposed to use alkaline and using nimh is annoying because it takes longer to shave with it running so slow.

 

This is completely off topic at this point, but my shaver uses a lithium ion battery and runs at the same speed for virtually all of its runtime until recharging. Lithium ion cells are really the best, since none of them have very much self discharge (less even than LSD NiMH cells), and they can deliver fairly high currents (lithium iron phosphate and lithium maganese cells can deliver incredibly high currents).
Interestingly, good old NiCad cells actually do better at very high currents than NiMH cells, but their annoying self discharge and memory effect makes them a pain to use.

 

true but li-ion also have several other issues. li is a rare metal in high demand. nizn is abundant also eco friendly. li is not. also lico2 cells are dangerous without a PCM/PCB. Although lifepo4 cells are non explosive they also are still hazardous and also have a much lower capacity than lico2 cells