It seems that Samsung Galaxy S4 owners have reported that their phone batteries are giving them problems. For some the batteries either drain way too quickly, and some have even reported that their phone batteries have even swelled up in size which we guess does seem alarming, not to mention potentially dangerous. Well Samsung appears to have taken note of this issue and has since acknowledged it. Speaking to the folks at Trusted Reviews, Samsung has released a statement saying, “We are aware of this issue, which has affected a limited number of customers.”Samsung has even offered to replace the batteries on affected devices for free. “We ask all affected customers to please visit their nearest Samsung Electronics service centre, where they can receive a replacement battery for free of charge. We remain committed to providing the best possible user experience for our customers.” While Samsung claims that only “limited number” of customers are affected, reports suggest about 30% of Galaxy S4 owners are suffering from this problem, which definitely sounds more than a “limited number”. In any case if your Galaxy S4 is giving you any of these issues, head on over to a Samsung Electronics service center to get it fixed.