This battery keeps what it promises

After the original battery from my Samsung Galaxy W significantly inflated, the performance went rapidly downhill, and therefore made no use of mobile phones possible, I am in search of a suitable battery that encountered here.

First was my thought, again to order an original battery of Samsung. Because of all counterfeits that exist in this market was the fear that a counterfeit battery my phone ultimately damaged too big.

Then I came across this one. From cellephone a Polar Cell battery which also would be suitable for my smartphone. The department reports have suggested good and the product description was therefore also suitable and reputable.

Bought, tested and convincing!

The prerequisite, he had to fit into my phone was verified. Now my phone is turned on and lo and behold - it works. The battery was sent with about 60% charged memory. And these 60% felt wirkich considerably longer to than I expected.
The next sample also waiting after the battery had then discharged so slowly: the store.
Also went smoothly. Simply the charging cable connected directly to the phone and it was loaded. As it should be specified when a rechargeable battery.

As the battery but (after months) behaves in use for some time, I can not say. Whether it is the power also decreases rapidly as the original battery or I can inflate to date just say no.

My Conclusion:
Buy here really worth it!
The battery life feels much longer.
The battery fits in the device.