i want to know if the size of 4000mah is same like 3000mah or are biger?
629165
They are a little bit bigger from my experience. They fit most applications but do run out a little faster.
629166
Well in the first place, I doubt you will find a true 4000mAh 18650. Panasonic has a 3400mAh and that is the highest true 18650. Anyway to answer your question the battery will be heavier then a 3000mAh. However, some 18650 have a PCB for overheating, these batteries will be longer. FYI; UltraFire does not make an 18650 over 3000mAh. These batteries pictured here are counterfeit and Amazon know it. Do not buy. A true UltraFire 18650 battery weighs 1.5 ounce (42.5242847 Grams). The Cathode plate (negative end) is brass in color and has their trademark stamped on this brass colored plate. This trademark stamp states Ultrafire (not UltraFire) with two fire flames located directly above the "e". The Maximum mAh (milliamp hour) is 3000. Any UltraFire 18650 battery stating that it is over 3000mAh is a counterfeit. Any UltraFire 18650 that does not have the above description is a counterfeit. The range's of the UltraFire 18650 batteries are 3000mAh, 2600mAh, 2400mAh and 1200mAh, http://www.ultrafire.net/shownews.asp?id=60 http://www.ultrafire-shop.net/page3.php http://www.ultrafire-*shop.net/data/storage/attachments/94a73d230e2445b0feea1ef30f550de0.jpg *The above web site is a CR123A not an 18650 but this is how the Cathode appears on the 18650. By the way, I am in no way affiliated, connected to or know anyone affiliated or connected with UltraFire. I am a consumer that is getting tired of being ripped off, lied to and cheated. So I decided to do some research and this is what I found.
629167
Well 4000 is bigger than 3000.... But there is currently no such thing as a 4000mah 18650 cell, and the official UltraFire website does not list these, so they must be fake.
629168
Yes, they are the same size. Now the 4000 mah with over charge protection are slightly more round. But the standard 4000 mah are the same size as the 3000mah.
629169
All "18650" batteries are the same size. I have 3000mah and 4000mah batteries here and they are both the same size.
629170
yes I think they are the same, the difference they are designed for different mah (mili amp hours), this determines their output and service between charges. the larger the mah, the stronger the battery
959873
Shouldn't be a problem as long as the physical size and voltage are the same. Higher mAh means higher battery capacity, and longer service between charges.
1719614
It works great on mine, and it lasts so much longer and is more powerful. 3000mAh is fantastic, Lyle
1945433
I'm not sure what you might find to be the difference. However, I do know that my 4400 mAh still lasts me over 5 hours of intense use, and I've been using it daily for almost nine months I believe. Either way I don't think you can go wrong!
522751
mah stands for milliamp hours. It's a measure of the amount of energy a battery or battery set can store. Thus a 600mah battery can store more energy than the 400mah battery. More stored energy equals more talk time between charges. So the answer is the 600mah will work if the battery has the same battery number (which equates to same voltage, battery physical size, and plug type) and will provide more talk time than your old 400mah battery.
765395
ARE THEY the same? If they are different 'makers' of the battery(s) it will be a tough call. I will 'assume' that since the numbers appear to be closely the same the capacities 'might' be the same. But what about the dimensions?that will be a key factor.
1969640
I have the 4000 mAh version which is not pictured on the page I'm looking at right now. But according to the back of it, it's Output is 5V ~ 0.5A.
207933
Basically the LR44 is thicker than the LR1130. They both have the same voltage but the LR44 has more capacity. As far as capacity is concerned you can view it like a D size battery to a C size battery. Same voltage more capacity
581331
The largest battery I have used is the 600mah found here: http://www.hobbyking.com/hobbyking/store/__20385__Turnigy_nano_tech_600mah_1S_35_70C_Lipo_Nine_Eagles_Solo_Pro_328_Eflite_MQX_120SR_.htmlPotentially, you could use something bigger I suppose but weight does become an issue. The battery above fits in stock holder though it can be a bit snug.This model does not have brushless motors and it is not practical to refit them to it. Too many things would have to be changed on it and it would cost much more to do this as opposed to simply purchasing a model designed with brushless motors in the first place. The largest battery I have used is the 600mah found here: http://www.hobbyking.com/hobbyking/store/__20385__Turnigy_nano_tech_600mah_1S_35_70C_Lipo_Nine_Eagles_Solo_Pro_328_Eflite_MQX_120SR_.htmlPotentially, you could use something bigger I suppose but weight does become an issue. The battery above fits in stock holder though it can be a bit snug.This model does not have brushless motors and it is not practical to refit them to it. Too many things would have to be changed on it and it would cost much more to do this as opposed to simply purchasing a... » Read More The largest battery I have used is the 600mah found here: http://www.hobbyking.com/hobbyking/store/__20385__Turnigy_nano_tech_600mah_1S_35_70C_Lipo_Nine_Eagles_Solo_Pro_328_Eflite_MQX_120SR_.htmlPotentially, you could use something bigger I suppose but weight does become an issue. The battery above fits in stock holder though it can be a bit snug.This model does not have brushless motors and it is not practical to refit them to it. Too many things would have to be changed on it and it would cost much more to do this as opposed to simply purchasing a model designed with brushless motors in the first place. « Show Less
1033634
MOST, and I stress, most large size batteries will fit the same profile and in turn yes, this case. 7800 MAH seems pretty large, but worst case scenario you can send the case back. Amazon is great with returns.
1615276
I ordered two. They work perfectly. The higher 2400ma means they have more capacity - last longer. However, be careful when ordering. There are two different models with the same part number. Insure that the contacts in the picture looks exactly like the contacts on your current battery.
1628790
The mAh is speaking to capacity, not comparability. For example I I just purchased the Anker 7200mAh to replace the 2100mAh battery in my phone. As long as your model is listed in the description you should be fine.
412962
Can anyone else confirm if this unit is truly 14000 mAh or only 4000 mAh? I can't seem to find the specs anywhere.
1024037
I would say that either one of these batteries is about the same..have used both of them with no problems.
629057
The thinnest one is 2000mAh When I was shopping it did give options to select different capacities but as you would expect, the bigger the capacity the thicker it is For most I would say you'll be okay with a 2000mAh
1931369
3.4 x4.9 cm is the NV size. i don't know what the difference is.says it's 1000mAh 3.7v 3.7whhope that helps.
636794
same battery with a bit more amp hours, should work quite well for you. I don't run out of power any more with these in my pocket.