These replacement batteries are not  A deal at all, they are just about worthless.
931746
I bought these two batteries to replace two Dewalt batteries that had gone bad after several years I still have one DeWalt battery thats about 2 1/2 years old. These new batteries that I bought are not half as good as the old a while battery that I have left. These batteries do not have full power after theyve been charged and they don't last very long at all I would sa I bought these two batteries to replace two Dewalt batteries that had gone bad after several years I still have one DeWalt battery thats about 2 1/2 years old. These new batteries that I bought or not half as good as the old a while battery that I have left. These batteries do not have full power after theyve been charged and they don't last very long at all.  I would say they're about 60% the stress of my old DeWalt battery and as I  used these batteries they did not last 1/3 the time of my old DeWalt battery.
3750917
These batteries charged approximately 5 times each (I purchased two)  and would not hold a charge or charge at all anymore.
2621620
This thing is pure junk!!!!  Batteries fit poorly (at least the copper top ones) and do not make contact.
1444794
Batteries are junk !! I purchased this because I need batteries that will hold a charge. These batteries do not !! This is my second attempt at buying batteries for my camera on Amazon, and I got screwed both times. It's time to start looking elsewhere to find a good battery. I'm tired of wasting my money on this junk !!!!
1495674
These were either inoperable or dead batteries right out of the package. Waste of money, and it'd cost more to return them than to just throw them out. Go on to the next option, these are cheap garbage.
3640484
These batteries are terrible. They never charge to 100% and drain quickly. I bought (2) and one crapped out within a few weeks. The plastic nobs at the bottom also fell off. Stay away from these.
3415611
Batteries won't hold charge, original batteries provided are garbage, new SONY ones won't hold charge either...
2573542
These batteries were horrible - performed worse than the original batteries which came with the vacuum. I would not waste my money of these expensive batteries. mine are less than a year old and already won't vacuum for more than 5 minutes despite following all the battery reset instructions multiple times,

Garbage.
2076835
These are basically junk, they don't even last half as long as the battery that came with the camera.  Save your money and get a name brand battery.
3588666
This batteries are low quality. I bought this product and it only lasted a month. It's very disappointing that you will expect this to work as the product description claims and a month later it doesn't charge anything.

I contacted the manufacturer for warranty as the suggest and nobody replied to me.

Don't buy this product you will be just wasting your money for nothing.
4457895
Received the battery's and put them on a charge for a couple of weeks and they don't take a charge. So I am returning them. What a rip off
1370541
This battery does not do its job and does not hold a charge. Lasts only a few hours and dies. Never again.
2287812
This item Will not hold a charge and is actually worse than the 4 year old battery I already had. I even calibrated. Not worth the money.
539906
One of these batteries works Ok, but does not have the life expected of a battery with this amp-hour rating.  The other one repeatedly causes my charger to trip its circuit breaker after a few minutes in the charger.  Do not waste your money on these.

I am trying to return them.
300484
Do not get the replacement batteries they do not work or fit very unsatisfied so I'm stuck with something I cannot use
902153
totally worthless.  These are not flexible and they don't work.
1229318
These batteries don't hold a charge any better than the old one I replaced. They seem like poorly made knock offs. I'm not sure.
The problem hasn't gotten any better. Can you tell me why?