Customer Ratings & Reviews

For the price l think it was a good buy--we'll see how it performs 6 months from now. Still fairly early to make a solid review. When I first got the battery it was already charged to 60 % which I believe is a quality control issue done before the battery is sent out from the factory.When I first charged the battery it was having a hard time hitting a 100% charge but after charging overnight the issue corrected itself and has not reoccured. As long as the screen is not left on continually, the battery pretty much levels out as far as battery charge is concerned and lasts all day and l end the day at 50 to 60% charge remaining.

This is the only aftermarket battery I've found that has the embedded near-field antenna AND also meets all the OEM battery specs. It is not a knock-off battery nor one that uses inferior non-matched cells. The price is reasonable.

Battery installed in phone about 5 months ago. After 5 months of phone use, charging/discharging, the battery is still performing as a new battery.

The Ultralast battery brought my 5.5 yr. old Samsung Galaxy S5 back to life. I had ordered an oem Samsung battery online from en ebay retailer prior to this purchase. It arrived & worked no better than my 5.5 yr. old original. They replaced it with another one, same poor result. The only negative factor for the Ultralast is that shipping was delayed a month. Slow boat from China I would guess. Overall, satisfied with purchase.

Order was delayed from original delivery date that was given Then an empty package was in the locker -- had to make a visit inside store to resolve issue Probably not purchasing again from BB

I can only give it a good because I am unable to take off the back of my phone to actually use it to see if it works.

Still will work as my Samsung Galaxy S5 cell phone. Pls keep this item in stock.

I could of puchased a new phone but why when it was simply my battery. Buy this small investment my phone is like new again!

After buying three batteries that didn't hold a charge, this one actually acted like a NEW battery.

Works better than my 3 year old battery. Trying to avoid buying a new phone.

quick and easy to replace and works so I save a lot of money because I didn't have to buy a brand new phone

Was going to get a new phone but price was more than what I wanted to pay. Decided to buy battery instead & holding up well

Great battery. It actually has outlived the phone.

Seems to be just fine. A little disappointed that it wasn't made in the United States of America.

Great replacement battery for Samsung Cell phone. This is the only battery I have ever used as a replacement for the original.

Works just as well as the original battery. Saved me the hassle of trying to find a new phone.

I am waiting for best buy to restock the battery so I can order it

It's a battery ... what can I say? I put it in my phone, and then my phone worked ! Lol

I bought this as a replacement battery for my Samsung Galaxy S5 (SM-G900V) but returned it after one week. See details below. Major issues: + The battery worked but didn't behave like a new battery, not holding a charge well, as compared to the previous two batteries I've had for this phone. For example, it would discharge from 100% to 20% in 2 to 3 hours of moderate use (email, web browsing, social media over strong wifi with screen on dimmest setting). + The battery was slightly too long for my S5, but it was able to eventually fit with a little "encouragement." Potential minor issues: + The battery I received was not the battery pictured on the Best Buy product page. (However, the labeling on the battery still indicated compatibility with the Galaxy S5.) + The battery's UltraLast product packaging was not sealed. (However, the battery was shipped directly from Dantona/UltraLast, so this might've merely been the result of their shipping procedures and not indicative of tampering.) Overall, I expected better performance from an allegedly new battery. Compared to the previous two batteries for my S5 (the original Samsung battery and a third-party replacement battery with the same specs), when new, this battery greatly underperformed. Giving UltraLast the benefit of the doubt, I'm hoping that this one battery was just a dud, but I'll keep shopping around.

Purchased for Samsung Galaxy 7 and so far, so good.