If you can afford, go for the ORIGINAL battery. The picture above is a non-original battery, it overheated for no reason and melted the plastic part as you can see above. Luckily the phone is still functioning. So, no assurance for it. Anything might happen... but no worries, it won't explode...
It surely has given me what i wanted. Provides GOOD PUMPING SOUND... BOOM BOOM BOOM!!! Listening to songs with a good set of speakers will definitely make the atmosphere better... :p