Battery did not live up to the posted rating
356773
I purchased the battery Sep 2014.  Fast forward to June 2015: The battery is now dead (per test).  This was after I kept the ATV inside out of the weather and ran the ATV often to keep everything lubricated and charged.  The battery should have lasted more than 9 months..
332750
This is my updated review of the battery:

After posting my first review Anker reached out to me and had the battery replaced. The new one does work better than the first I received, but is still not that great when is comes to battery life. Anker's customer service is A1.

July 1: 2nd Update: The battery barely lasts an hour with no programs running.
2742886
the batteries were advertised as pre-charged. They were dead. Charged them for 12 hours and they only came up to 50%. Returned them for full credit.
4946632
I received this battery to replace the battery of my Toshiba Satellite S850 and my computer immediately told me that the battery I was using was poor. I thought this might be a mistake so I powered off my computer and turn it back on with the battery attach and again I was told the battery was poor. I decided to test the battery myself and even with  power savings on this battery barely last more than an hour and I JUST GOT IT.

This battery came to me in poor quality and I am upset
1501561
i did a battery testing and it was rated at 1623mAh not 1500 i got more than i paid for. thank you GTMax/EZOPower you made my phone better.
1554799
Bough this replacement for a laptop located outside US. At installation had 70%, but once the battery drained that 70% it wouldnt recharge; and impossible to return due to distance/time constraints
1533589
Recently ordered this and the battery would not hold a charge.  Requested a replacement, which also did not work, so I the requested a refund.
4431404
I had ordered a 1300 mah battery from Amazon before and it was delivered as ordered so I later repeated the order.  This time Amazon sent me a 1200 mah bettery, which is an O.K. battery but of lower specifications and should have been priced less than the 1300 mah battery (IT SAYS RIGHT ON THE PACKAGE IT WAS A 1200 mah BETTERY). I welcome the opportunity to inform Amazon that they, too, are quilty of a little false advertising.  At the very least amazon could have informed me of the switcheroo, if not adjusted the price for the inferior product or asked me for my permission.  I just didn't think the thing was worth my sending it back!!!
2955047
this battery simply did not work-to counter my hours wasted trying to get it to work the Onsite people were very quick to refund the money-clearly this is a problem they are familiar with. I had previously given this seller a 2 which Amazon must had withdrawn until the refund was sent. Based on the sincere effort to remedy the situation I am upgrading one start. However the battery itself is junk.
1167497
This battery came with a 70 percent charge and charged the battery to 100%. in about 15 min the battery was at 95% in 2 hours it was at 70% and I used my phone lightly. Only did a couple songs and facebook posts and some texts. Ive seen the same battery life on my stock battery. The battery didn't hold the long life I wanted.  Also the battery has a limited amount of charge cycle which is normal but still something to think about.
I gave this 2 stars because its a big extra battery, but mine didn't hold the long charge.
220145
Did not hold a charge very long (maybe 3 hours).  Cells declined in performance over the next month.  While customer support was great and promptly sent me a return for free (5 stars for that, but I'm rating the product here), the replacement battery had similar performance.  When I click on the battery indicator icon at the top of my screen, it says "Condition: Replace Now."  How is that possible?  This is a replacement!
1191119
Battery was easy to install.  However, after fully charged did not make it through a full round of golf, and we play in about 3 hours.  Advertised around 12 hrs.  Not even close.  Returning mine.
2704005
Battery was ok but does not hold a charge like a new battery
4671154
After a few months use, only got 7 hours battery when fully charged.
400150
With all the positive reviews, can't say I am happy. Got the battery yesterday and it is not working properly. While the battery check on my HP laptop says it is OK, clearly the laptop is not reading the battery correctly. I charged the battery and it stopped at 80%. Then I unplugged it, ran it for a little over an hour, and my computer shut off with the battery saying it still had 1.5 hours of life left. Plugged it back in and it showed that the battery was dead. After recharging, it stopped at 40% capacity. So sending this back.
1970537
Well I'm not sure if I have to contact the company, but I am not satisfied with the battery. It doesn't keep it's charged as much as I would want to. It's a heavy battery too. I hope I can return it because it does say 180 days. I bought it back in September and it's not allowing me to return it.
414439
Of the two batteries that were shipped in the package, only one of them lasted beyond two charges.  The one that's still functioning requires a recharge after approximately 30 minutes of active gameplay.  I'm assuming, based on some of the good reviews posted, that I just got a bad pick of the litter.  But by the time I responded to the company with my product grievance, they informed me that they only have a 30-day return window, which I should've observed and reacted upon much sooner.