Im looking at purchasing the xtar WP211 charger but it only lists being compatible with the following batteries - 14500, 14650, 16340 (using spacers), 17670, 18350 (using spacers), 18500, 18650, 18700, 10440 and 16340. Looking at the Efest and AW battery lists I am only able to find the 18500 battery made by Efest and that AW only seem to list the 18490 battery which does not seem to be as easy to find a charger for. I would prefer to purchase the AW but do not want to purchase the above charger if the 18490 will not fit. The only other option would be to purchase the 18500 battery from Efest which the charger above clearly lists. I was wondering what the difference between these 2 batteries were since they are both listed as 1100mah.
XTAR WP211 and 18490 AW Batteries
- Thread starter supermiff
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AW 18490 fits in there no problem.
18490 and 18500 have ± 1 millimeter of length difference.
18490 and 18500 have ± 1 millimeter of length difference.
Yes that is what I thought, but I wanted to be sure. Thank you.
The difference is quality my friend...
AW are consistently better than Efest when it comes to benchmark testing. Especially at higher amps.
Get the aw for sure. And it will work fine as others have said
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You may be replacing those efest batteris in 3 or 4 months. AW's should last closer to two years if you are cycling two of them.
Or you could get lucky with efest. They don't do the testing that AW does and that quality is what you are paying for.
Or you could get lucky with efest. They don't do the testing that AW does and that quality is what you are paying for.
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To be fair, i own a efest & aw 18650 and personally, battery life wise, they are the same. I don't notice any difference in them on a day to day basis. I've only had these a month or so, so I guess time will tell which one lasts longer. For the extra few £ i'd definitely go AW again due to the reputation they've got 
I did eventually purchase the AW. My thread was not actually based on me considering purchasing an Efest battery however, since my charger did not list as being compatible with an 18490 and only an 18500, I was worried that I would have to purchase an Efest since I cold not find any 18500 AW IMR batteries. I kind of figured that it was in fact more or less the same battery physically which was later confirmed. So basically to cut a long story short, If a battery charger is listed as being compatible with an 18500 battery then this also means that it will work with a 18490... Correct?
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