Anker Galaxy Note 4 Replacement Battery Review br br I was fortunate to have Anker send me a sample of this battery to test out and provide feedback, and thought I would do a review of the battery. This br br battery is basically identical to the stock OEM battery from Samsung that comes with the phone. It is also 3220mAh 3.85V with 12.4Wh. This battery will fit br br in the Samsung Galaxy Note 4 from all three major carriers (ATT N910A, Tmobile N910T, and Verizon N910V). br br This Galaxy Note 4 Replacement Battery fits my Note 4 perfectly. Nice and snug. Shipped to me it had a 56 charge. I LOVE having a spare battery with me. br br It easily fits in my back back, and literally can be a lifesaver. The literature claims you should get 500 cycles from this battery... thats just shy of a br br year and a half of daily charging. Samsung's stock batteries are rated roughly the same. br br I have used Anker replacement batteries going all the way back to the original Android HTC G1 phone. They always perform better than expected, is which is br br why I continue to use their brand in all my phones. They use quality battery cells, and when measuring the the batteries on a test bench, they are always br br within the tolerances advertised. br br I have not fully ran the battery through it's paces yet to gather using data. But I anticipate I should see comparable performance to the stock battery. I br br will try to report back in a few days. br br Make sure you take a quick read through the included booklet... it has helpful tips on getting the most out of your new battery. br br PROS: br - Affordable replacement (spare) battery br - Fits perfectly in the Note 4 br - High Quality! br - 18 Month Warranty br - NFC Functionality? The website claims that it is, but I don't use it so I can't confirm. br br CONS: br - None really. I just wish it came with an external charger.