I don't believe those are 2200 mAh and I don't like batteries which someone sells with different charger (usually they are NOT decoded and the camera does not show battery level).
I got 2 of this: http://www.ebay.com/itm/2Pcs-Full-Coded-1250mAh-LP-E12-Battery-for-Canon-EOS-M-Camera-Show-Battery-Level-/170895464586?pt=Batteries_Chargers&hash=item27ca29d88a
They are working fine, I don't see any difference with the original battery.
Thanks, Dear noncho.
Thanks for another option for all EOS-M users. For 2200 mAh storage power, I just read on Amazon and Read at the label on the Batteries per the Photos that show in this post. I do not think that they lie to us, This Sell in USA, and Very dangerous to not tell the Truth. Up to this After noon I take 85 More Photos = 85 + 438 = 523 Photos so far, and Still Full Battery in one charge = Magic for me.
You really believe that you have 2.5 times higher capacity in this third party battery in the same small package? And you believe that your new small LP-E12 are with higher capacity than the original much larger LP-E6 (used in 5D III/7D, 1800 mAh) because this is what the label said?
Sorry, but I have some technical background and I don't believe in magic and miracles just because I'm using 3rd party batteries too
Thanks, Dear noncho.
I am just old architect, not electrical engineer like you. I just read the Label of the Battery that sell in USA. Per US. Regulation and UL label, Yes I just buy them, and Use 1 of them to take 523 Photos, and Still go strong, Just Magic that My EOS-M do not like Canon LP-E12 , 875 mAh, just take the 125 to 150 photos---But my EOS-M just love Halcyon rated 2200 mAh, and Take 523 photos and still have more power store in the battery.
Same Magic of My Rechargable AA battery Solution power, Ni-Mh AA just have only 350 mAh ( For my Solar Deck Light) Which Same Size of my AA Battery of Sanyo / Eneloop 2600 mAh( for my All Canon Flashes)---Yes, Same AA Battery size Which Smaller than LP-E12 ( Per Volumn)----Yes, Eneloop 2600 mAh beat both Solution power( 350 mAh) and Halcyon( 2200 mAh).
Just my Low level brain tell me that, The Size are not matter, But the New Technology might make the Magic happen.
BUT, the last words = $ 10 US Dollars Chinese made Battery is better than 50 Us Dollars Chinese Made Battery for the same purpose.
Have a good night.
Yes, When I order This Halcyon 4-5 days ago, I just laugh at my self, Similar to you too, How Stupid am I that spend Less Than 10 US Dollars for Each Battery for Chinese made( Canon LP-E12 Chinese made = $ 50 US Dollars), and hope for Magic.
Yes, To day , After I test Run, The Magic Happens to me